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-rw-r--r--plugins/omemo/CMakeLists.txt51
-rw-r--r--plugins/omemo/src/signal/context.vala103
-rw-r--r--plugins/omemo/src/signal/signal_helper.c377
-rw-r--r--plugins/omemo/src/signal/signal_helper.h45
-rw-r--r--plugins/omemo/src/signal/simple_iks.vala40
-rw-r--r--plugins/omemo/src/signal/simple_pks.vala33
-rw-r--r--plugins/omemo/src/signal/simple_spks.vala33
-rw-r--r--plugins/omemo/src/signal/simple_ss.vala75
-rw-r--r--plugins/omemo/src/signal/store.vala415
-rw-r--r--plugins/omemo/src/signal/util.vala45
-rw-r--r--plugins/omemo/tests/signal/common.vala92
-rw-r--r--plugins/omemo/tests/signal/curve25519.vala207
-rw-r--r--plugins/omemo/tests/signal/hkdf.vala59
-rw-r--r--plugins/omemo/tests/signal/session_builder.vala400
-rw-r--r--plugins/omemo/tests/signal/testcase.vala80
-rw-r--r--plugins/omemo/vapi/libsignal-protocol-c.vapi657
16 files changed, 2708 insertions, 4 deletions
diff --git a/plugins/omemo/CMakeLists.txt b/plugins/omemo/CMakeLists.txt
index dc9a93b0..7ecaa0b8 100644
--- a/plugins/omemo/CMakeLists.txt
+++ b/plugins/omemo/CMakeLists.txt
@@ -12,6 +12,11 @@ find_packages(OMEMO_PACKAGES REQUIRED
GTK4
)
+# libsignal-protocol-c has a history of breaking compatibility on the patch level
+# we'll have to check compatibility for every new release
+# distro maintainers may update this dependency after compatibility tests
+find_package(SignalProtocol 2.3.2 REQUIRED)
+
set(RESOURCE_LIST
contact_details_dialog.ui
manage_key_dialog.ui
@@ -52,6 +57,14 @@ SOURCES
src/protocol/message_flag.vala
src/protocol/stream_module.vala
+ src/signal/context.vala
+ src/signal/simple_iks.vala
+ src/signal/simple_ss.vala
+ src/signal/simple_pks.vala
+ src/signal/simple_spks.vala
+ src/signal/store.vala
+ src/signal/util.vala
+
src/ui/account_settings_entry.vala
src/ui/bad_messages_populator.vala
src/ui/call_encryption_entry.vala
@@ -64,22 +77,52 @@ SOURCES
src/ui/util.vala
CUSTOM_VAPIS
${CMAKE_BINARY_DIR}/exports/crypto-vala.vapi
- ${CMAKE_BINARY_DIR}/exports/signal-protocol.vapi
${CMAKE_BINARY_DIR}/exports/xmpp-vala.vapi
${CMAKE_BINARY_DIR}/exports/qlite.vapi
${CMAKE_BINARY_DIR}/exports/dino.vapi
${CMAKE_CURRENT_SOURCE_DIR}/vapi/libqrencode.vapi
+ ${CMAKE_CURRENT_SOURCE_DIR}/vapi/libsignal-protocol-c.vapi
PACKAGES
${OMEMO_PACKAGES}
GRESOURCES
${OMEMO_GRESOURCES_XML}
+GENERATE_VAPI
+ omemo
+GENERATE_HEADER
+ omemo
)
-add_definitions(${VALA_CFLAGS} -DGETTEXT_PACKAGE=\"${GETTEXT_PACKAGE}\" -DLOCALE_INSTALL_DIR=\"${LOCALE_INSTALL_DIR}\" -DG_LOG_DOMAIN="OMEMO")
-add_library(omemo SHARED ${OMEMO_VALA_C} ${OMEMO_GRESOURCES_TARGET})
+add_definitions(${VALA_CFLAGS} -DGETTEXT_PACKAGE=\"${GETTEXT_PACKAGE}\" -DLOCALE_INSTALL_DIR=\"${LOCALE_INSTALL_DIR}\" -DG_LOG_DOMAIN="OMEMO")
+add_library(omemo SHARED ${OMEMO_VALA_C} ${OMEMO_GRESOURCES_TARGET} ${CMAKE_CURRENT_SOURCE_DIR}/src/signal/signal_helper.c)
add_dependencies(omemo ${GETTEXT_PACKAGE}-translations)
-target_link_libraries(omemo libdino signal-protocol-vala crypto-vala ${OMEMO_PACKAGES} libqrencode)
+target_include_directories(omemo PUBLIC src)
+target_link_libraries(omemo libdino crypto-vala gcrypt ${OMEMO_PACKAGES} libqrencode signal-protocol-c)
set_target_properties(omemo PROPERTIES PREFIX "")
set_target_properties(omemo PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/plugins/)
install(TARGETS omemo ${PLUGIN_INSTALL})
+
+if(BUILD_TESTS)
+ vala_precompile(OMEMO_TEST_VALA_C
+ SOURCES
+ "tests/signal/common.vala"
+ "tests/signal/testcase.vala"
+
+ "tests/signal/curve25519.vala"
+ "tests/signal/hkdf.vala"
+ "tests/signal/session_builder.vala"
+ CUSTOM_VAPIS
+ ${CMAKE_BINARY_DIR}/exports/omemo_internal.vapi
+ ${CMAKE_BINARY_DIR}/exports/qlite.vapi
+ ${CMAKE_BINARY_DIR}/exports/xmpp-vala.vapi
+ ${CMAKE_BINARY_DIR}/exports/dino.vapi
+ ${CMAKE_CURRENT_SOURCE_DIR}/vapi/libsignal-protocol-c.vapi
+ PACKAGES
+ ${OMEMO_PACKAGES}
+ )
+
+ set(CFLAGS ${VALA_CFLAGS})
+ add_executable(omemo-test ${OMEMO_TEST_VALA_C})
+ add_dependencies(omemo-test omemo)
+ target_link_libraries(omemo-test omemo ${OMEMO_PACKAGES})
+endif(BUILD_TESTS)
diff --git a/plugins/omemo/src/signal/context.vala b/plugins/omemo/src/signal/context.vala
new file mode 100644
index 00000000..40a07b0f
--- /dev/null
+++ b/plugins/omemo/src/signal/context.vala
@@ -0,0 +1,103 @@
+namespace Signal {
+
+public class Context {
+ internal NativeContext native_context;
+ private RecMutex mutex = RecMutex();
+
+ static void locking_function_lock(void* user_data) {
+ Context ctx = (Context) user_data;
+ ctx.mutex.lock();
+ }
+
+ static void locking_function_unlock(void* user_data) {
+ Context ctx = (Context) user_data;
+ ctx.mutex.unlock();
+ }
+
+ static void stderr_log(LogLevel level, string message, size_t len, void* user_data) {
+ printerr(@"$level: $message\n");
+ }
+
+ public Context(bool log = false) throws Error {
+ throw_by_code(NativeContext.create(out native_context, this), "Error initializing native context");
+ throw_by_code(native_context.set_locking_functions(locking_function_lock, locking_function_unlock), "Error initializing native locking functions");
+ if (log) native_context.set_log_function(stderr_log);
+ setup_crypto_provider(native_context);
+ }
+
+ public Store create_store() {
+ return new Store(this);
+ }
+
+ public void randomize(uint8[] data) throws Error {
+ throw_by_code(Signal.native_random(data));
+ }
+
+ public SignedPreKeyRecord generate_signed_pre_key(IdentityKeyPair identity_key_pair, int32 id, uint64 timestamp = 0) throws Error {
+ if (timestamp == 0) timestamp = new DateTime.now_utc().to_unix();
+ SignedPreKeyRecord res;
+ throw_by_code(Protocol.KeyHelper.generate_signed_pre_key(out res, identity_key_pair, id, timestamp, native_context));
+ return res;
+ }
+
+ public Gee.Set<PreKeyRecord> generate_pre_keys(uint start, uint count) throws Error {
+ Gee.Set<PreKeyRecord> res = new Gee.HashSet<PreKeyRecord>();
+ for(uint i = start; i < start+count; i++) {
+ ECKeyPair pair = generate_key_pair();
+ PreKeyRecord record;
+ throw_by_code(PreKeyRecord.create(out record, i, pair));
+ res.add(record);
+ }
+ return res;
+ }
+
+ public ECPublicKey decode_public_key(uint8[] bytes) throws Error {
+ ECPublicKey public_key;
+ throw_by_code(curve_decode_point(out public_key, bytes, native_context), "Error decoding public key");
+ return public_key;
+ }
+
+ public ECPrivateKey decode_private_key(uint8[] bytes) throws Error {
+ ECPrivateKey private_key;
+ throw_by_code(curve_decode_private_point(out private_key, bytes, native_context), "Error decoding private key");
+ return private_key;
+ }
+
+ public ECKeyPair generate_key_pair() throws Error {
+ ECKeyPair key_pair;
+ throw_by_code(curve_generate_key_pair(native_context, out key_pair), "Error generating key pair");
+ return key_pair;
+ }
+
+ public uint8[] calculate_signature(ECPrivateKey signing_key, uint8[] message) throws Error {
+ Buffer signature;
+ throw_by_code(Curve.calculate_signature(native_context, out signature, signing_key, message), "Error calculating signature");
+ return signature.data;
+ }
+
+ public SignalMessage deserialize_signal_message(uint8[] data) throws Error {
+ SignalMessage res;
+ throw_by_code(signal_message_deserialize(out res, data, native_context));
+ return res;
+ }
+
+ public SignalMessage copy_signal_message(CiphertextMessage original) throws Error {
+ SignalMessage res;
+ throw_by_code(signal_message_copy(out res, (SignalMessage) original, native_context));
+ return res;
+ }
+
+ public PreKeySignalMessage deserialize_pre_key_signal_message(uint8[] data) throws Error {
+ PreKeySignalMessage res;
+ throw_by_code(pre_key_signal_message_deserialize(out res, data, native_context));
+ return res;
+ }
+
+ public PreKeySignalMessage copy_pre_key_signal_message(CiphertextMessage original) throws Error {
+ PreKeySignalMessage res;
+ throw_by_code(pre_key_signal_message_copy(out res, (PreKeySignalMessage) original, native_context));
+ return res;
+ }
+}
+
+}
diff --git a/plugins/omemo/src/signal/signal_helper.c b/plugins/omemo/src/signal/signal_helper.c
new file mode 100644
index 00000000..17682929
--- /dev/null
+++ b/plugins/omemo/src/signal/signal_helper.c
@@ -0,0 +1,377 @@
+#include "signal_helper.h"
+
+#include <gcrypt.h>
+
+signal_type_base* signal_type_ref_vapi(void* instance) {
+ g_return_val_if_fail(instance != NULL, NULL);
+ signal_type_ref(instance);
+ return instance;
+}
+
+signal_type_base* signal_type_unref_vapi(void* instance) {
+ g_return_val_if_fail(instance != NULL, NULL);
+ signal_type_unref(instance);
+ return NULL;
+}
+
+signal_protocol_address* signal_protocol_address_new(const gchar* name, int32_t device_id) {
+ g_return_val_if_fail(name != NULL, NULL);
+ signal_protocol_address* address = malloc(sizeof(signal_protocol_address));
+ address->device_id = -1;
+ address->name = NULL;
+ signal_protocol_address_set_name(address, name);
+ signal_protocol_address_set_device_id(address, device_id);
+ return address;
+}
+
+void signal_protocol_address_free(signal_protocol_address* ptr) {
+ g_return_if_fail(ptr != NULL);
+ if (ptr->name) {
+ g_free((void*)ptr->name);
+ }
+ return free(ptr);
+}
+
+void signal_protocol_address_set_name(signal_protocol_address* self, const gchar* name) {
+ g_return_if_fail(self != NULL);
+ g_return_if_fail(name != NULL);
+ gchar* n = g_malloc(strlen(name)+1);
+ memcpy(n, name, strlen(name));
+ n[strlen(name)] = 0;
+ if (self->name) {
+ g_free((void*)self->name);
+ }
+ self->name = n;
+ self->name_len = strlen(n);
+}
+
+gchar* signal_protocol_address_get_name(signal_protocol_address* self) {
+ g_return_val_if_fail(self != NULL, NULL);
+ g_return_val_if_fail(self->name != NULL, 0);
+ gchar* res = g_malloc(sizeof(char) * (self->name_len + 1));
+ memcpy(res, self->name, self->name_len);
+ res[self->name_len] = 0;
+ return res;
+}
+
+int32_t signal_protocol_address_get_device_id(signal_protocol_address* self) {
+ g_return_val_if_fail(self != NULL, -1);
+ return self->device_id;
+}
+
+void signal_protocol_address_set_device_id(signal_protocol_address* self, int32_t device_id) {
+ g_return_if_fail(self != NULL);
+ self->device_id = device_id;
+}
+
+int signal_vala_randomize(uint8_t *data, size_t len) {
+ gcry_randomize(data, len, GCRY_STRONG_RANDOM);
+ return SG_SUCCESS;
+}
+
+int signal_vala_random_generator(uint8_t *data, size_t len, void *user_data) {
+ gcry_randomize(data, len, GCRY_STRONG_RANDOM);
+ return SG_SUCCESS;
+}
+
+int signal_vala_hmac_sha256_init(void **hmac_context, const uint8_t *key, size_t key_len, void *user_data) {
+ gcry_mac_hd_t* ctx = malloc(sizeof(gcry_mac_hd_t));
+ if (!ctx) return SG_ERR_NOMEM;
+
+ if (gcry_mac_open(ctx, GCRY_MAC_HMAC_SHA256, 0, 0)) {
+ free(ctx);
+ return SG_ERR_UNKNOWN;
+ }
+
+ if (gcry_mac_setkey(*ctx, key, key_len)) {
+ free(ctx);
+ return SG_ERR_UNKNOWN;
+ }
+
+ *hmac_context = ctx;
+
+ return SG_SUCCESS;
+}
+
+int signal_vala_hmac_sha256_update(void *hmac_context, const uint8_t *data, size_t data_len, void *user_data) {
+ gcry_mac_hd_t* ctx = hmac_context;
+
+ if (gcry_mac_write(*ctx, data, data_len)) return SG_ERR_UNKNOWN;
+
+ return SG_SUCCESS;
+}
+
+int signal_vala_hmac_sha256_final(void *hmac_context, signal_buffer **output, void *user_data) {
+ size_t len = gcry_mac_get_algo_maclen(GCRY_MAC_HMAC_SHA256);
+ uint8_t md[len];
+ gcry_mac_hd_t* ctx = hmac_context;
+
+ if (gcry_mac_read(*ctx, md, &len)) return SG_ERR_UNKNOWN;
+
+ signal_buffer *output_buffer = signal_buffer_create(md, len);
+ if (!output_buffer) return SG_ERR_NOMEM;
+
+ *output = output_buffer;
+
+ return SG_SUCCESS;
+}
+
+void signal_vala_hmac_sha256_cleanup(void *hmac_context, void *user_data) {
+ gcry_mac_hd_t* ctx = hmac_context;
+ if (ctx) {
+ gcry_mac_close(*ctx);
+ free(ctx);
+ }
+}
+
+int signal_vala_sha512_digest_init(void **digest_context, void *user_data) {
+ gcry_md_hd_t* ctx = malloc(sizeof(gcry_mac_hd_t));
+ if (!ctx) return SG_ERR_NOMEM;
+
+ if (gcry_md_open(ctx, GCRY_MD_SHA512, 0)) {
+ free(ctx);
+ return SG_ERR_UNKNOWN;
+ }
+
+ *digest_context = ctx;
+
+ return SG_SUCCESS;
+}
+
+int signal_vala_sha512_digest_update(void *digest_context, const uint8_t *data, size_t data_len, void *user_data) {
+ gcry_md_hd_t* ctx = digest_context;
+
+ gcry_md_write(*ctx, data, data_len);
+
+ return SG_SUCCESS;
+}
+
+int signal_vala_sha512_digest_final(void *digest_context, signal_buffer **output, void *user_data) {
+ size_t len = gcry_md_get_algo_dlen(GCRY_MD_SHA512);
+ gcry_md_hd_t* ctx = digest_context;
+
+ uint8_t* md = gcry_md_read(*ctx, GCRY_MD_SHA512);
+ if (!md) return SG_ERR_UNKNOWN;
+
+ gcry_md_reset(*ctx);
+
+ signal_buffer *output_buffer = signal_buffer_create(md, len);
+ free(md);
+ if (!output_buffer) return SG_ERR_NOMEM;
+
+ *output = output_buffer;
+
+ return SG_SUCCESS;
+}
+
+void signal_vala_sha512_digest_cleanup(void *digest_context, void *user_data) {
+ gcry_md_hd_t* ctx = digest_context;
+ if (ctx) {
+ gcry_md_close(*ctx);
+ free(ctx);
+ }
+}
+
+const int aes_cipher(int cipher, size_t key_len, int* algo, int* mode) {
+ switch (key_len) {
+ case 16:
+ *algo = GCRY_CIPHER_AES128;
+ break;
+ case 24:
+ *algo = GCRY_CIPHER_AES192;
+ break;
+ case 32:
+ *algo = GCRY_CIPHER_AES256;
+ break;
+ default:
+ return SG_ERR_UNKNOWN;
+ }
+ switch (cipher) {
+ case SG_CIPHER_AES_CBC_PKCS5:
+ *mode = GCRY_CIPHER_MODE_CBC;
+ break;
+ case SG_CIPHER_AES_CTR_NOPADDING:
+ *mode = GCRY_CIPHER_MODE_CTR;
+ break;
+ case SG_CIPHER_AES_GCM_NOPADDING:
+ *mode = GCRY_CIPHER_MODE_GCM;
+ break;
+ default:
+ return SG_ERR_UNKNOWN;
+ }
+ return SG_SUCCESS;
+}
+
+int signal_vala_encrypt(signal_buffer **output,
+ int cipher,
+ const uint8_t *key, size_t key_len,
+ const uint8_t *iv, size_t iv_len,
+ const uint8_t *plaintext, size_t plaintext_len,
+ void *user_data) {
+ int algo, mode, error_code = SG_ERR_UNKNOWN;
+ if (aes_cipher(cipher, key_len, &algo, &mode)) return SG_ERR_INVAL;
+
+ gcry_cipher_hd_t ctx = {0};
+
+ if (gcry_cipher_open(&ctx, algo, mode, 0)) return SG_ERR_NOMEM;
+
+ signal_buffer* padded = 0;
+ signal_buffer* out_buf = 0;
+ goto no_error;
+error:
+ gcry_cipher_close(ctx);
+ if (padded != 0) {
+ signal_buffer_bzero_free(padded);
+ }
+ if (out_buf != 0) {
+ signal_buffer_free(out_buf);
+ }
+ return error_code;
+no_error:
+
+ if (gcry_cipher_setkey(ctx, key, key_len)) goto error;
+
+ uint8_t tag_len = 0, pad_len = 0;
+ switch (cipher) {
+ case SG_CIPHER_AES_CBC_PKCS5:
+ if (gcry_cipher_setiv(ctx, iv, iv_len)) goto error;
+ pad_len = 16 - (plaintext_len % 16);
+ if (pad_len == 0) pad_len = 16;
+ break;
+ case SG_CIPHER_AES_CTR_NOPADDING:
+ if (gcry_cipher_setctr(ctx, iv, iv_len)) goto error;
+ break;
+ case SG_CIPHER_AES_GCM_NOPADDING:
+ if (gcry_cipher_setiv(ctx, iv, iv_len)) goto error;
+ tag_len = 16;
+ break;
+ default:
+ return SG_ERR_UNKNOWN;
+ }
+
+ size_t padded_len = plaintext_len + pad_len;
+ padded = signal_buffer_alloc(padded_len);
+ if (padded == 0) {
+ error_code = SG_ERR_NOMEM;
+ goto error;
+ }
+
+ memset(signal_buffer_data(padded) + plaintext_len, pad_len, pad_len);
+ memcpy(signal_buffer_data(padded), plaintext, plaintext_len);
+
+ out_buf = signal_buffer_alloc(padded_len + tag_len);
+ if (out_buf == 0) {
+ error_code = SG_ERR_NOMEM;
+ goto error;
+ }
+
+ if (gcry_cipher_encrypt(ctx, signal_buffer_data(out_buf), padded_len, signal_buffer_data(padded), padded_len)) goto error;
+
+ if (tag_len > 0) {
+ if (gcry_cipher_gettag(ctx, signal_buffer_data(out_buf) + padded_len, tag_len)) goto error;
+ }
+
+ *output = out_buf;
+ out_buf = 0;
+
+ signal_buffer_bzero_free(padded);
+ padded = 0;
+
+ gcry_cipher_close(ctx);
+ return SG_SUCCESS;
+}
+
+int signal_vala_decrypt(signal_buffer **output,
+ int cipher,
+ const uint8_t *key, size_t key_len,
+ const uint8_t *iv, size_t iv_len,
+ const uint8_t *ciphertext, size_t ciphertext_len,
+ void *user_data) {
+ int algo, mode, error_code = SG_ERR_UNKNOWN;
+ *output = 0;
+ if (aes_cipher(cipher, key_len, &algo, &mode)) return SG_ERR_INVAL;
+ if (ciphertext_len == 0) return SG_ERR_INVAL;
+
+ gcry_cipher_hd_t ctx = {0};
+
+ if (gcry_cipher_open(&ctx, algo, mode, 0)) return SG_ERR_NOMEM;
+
+ signal_buffer* out_buf = 0;
+ goto no_error;
+error:
+ gcry_cipher_close(ctx);
+ if (out_buf != 0) {
+ signal_buffer_bzero_free(out_buf);
+ }
+ return error_code;
+no_error:
+
+ if (gcry_cipher_setkey(ctx, key, key_len)) goto error;
+
+ uint8_t tag_len = 0, pkcs_pad = FALSE;
+ switch (cipher) {
+ case SG_CIPHER_AES_CBC_PKCS5:
+ if (gcry_cipher_setiv(ctx, iv, iv_len)) goto error;
+ pkcs_pad = TRUE;
+ break;
+ case SG_CIPHER_AES_CTR_NOPADDING:
+ if (gcry_cipher_setctr(ctx, iv, iv_len)) goto error;
+ break;
+ case SG_CIPHER_AES_GCM_NOPADDING:
+ if (gcry_cipher_setiv(ctx, iv, iv_len)) goto error;
+ if (ciphertext_len < 16) goto error;
+ tag_len = 16;
+ break;
+ default:
+ goto error;
+ }
+
+ size_t padded_len = ciphertext_len - tag_len;
+ out_buf = signal_buffer_alloc(padded_len);
+ if (out_buf == 0) {
+ error_code = SG_ERR_NOMEM;
+ goto error;
+ }
+
+ if (gcry_cipher_decrypt(ctx, signal_buffer_data(out_buf), signal_buffer_len(out_buf), ciphertext, padded_len)) goto error;
+
+ if (tag_len > 0) {
+ if (gcry_cipher_checktag(ctx, ciphertext + padded_len, tag_len)) goto error;
+ }
+
+ if (pkcs_pad) {
+ uint8_t pad_len = signal_buffer_data(out_buf)[padded_len - 1];
+ if (pad_len > 16 || pad_len > padded_len) goto error;
+ *output = signal_buffer_create(signal_buffer_data(out_buf), padded_len - pad_len);
+ signal_buffer_bzero_free(out_buf);
+ out_buf = 0;
+ } else {
+ *output = out_buf;
+ out_buf = 0;
+ }
+
+ gcry_cipher_close(ctx);
+ return SG_SUCCESS;
+}
+
+void setup_signal_vala_crypto_provider(signal_context *context)
+{
+ gcry_check_version(NULL);
+
+ signal_crypto_provider provider = {
+ .random_func = signal_vala_random_generator,
+ .hmac_sha256_init_func = signal_vala_hmac_sha256_init,
+ .hmac_sha256_update_func = signal_vala_hmac_sha256_update,
+ .hmac_sha256_final_func = signal_vala_hmac_sha256_final,
+ .hmac_sha256_cleanup_func = signal_vala_hmac_sha256_cleanup,
+ .sha512_digest_init_func = signal_vala_sha512_digest_init,
+ .sha512_digest_update_func = signal_vala_sha512_digest_update,
+ .sha512_digest_final_func = signal_vala_sha512_digest_final,
+ .sha512_digest_cleanup_func = signal_vala_sha512_digest_cleanup,
+ .encrypt_func = signal_vala_encrypt,
+ .decrypt_func = signal_vala_decrypt,
+ .user_data = 0
+ };
+
+ signal_context_set_crypto_provider(context, &provider);
+}
diff --git a/plugins/omemo/src/signal/signal_helper.h b/plugins/omemo/src/signal/signal_helper.h
new file mode 100644
index 00000000..949a3c7b
--- /dev/null
+++ b/plugins/omemo/src/signal/signal_helper.h
@@ -0,0 +1,45 @@
+#ifndef SIGNAL_PROTOCOL_VALA_HELPER
+#define SIGNAL_PROTOCOL_VALA_HELPER 1
+
+#include <signal/signal_protocol.h>
+#include <string.h>
+#include <glib.h>
+
+#define SG_CIPHER_AES_GCM_NOPADDING 1000
+
+signal_type_base* signal_type_ref_vapi(void* what);
+signal_type_base* signal_type_unref_vapi(void* what);
+
+signal_protocol_address* signal_protocol_address_new(const gchar* name, int32_t device_id);
+void signal_protocol_address_free(signal_protocol_address* ptr);
+void signal_protocol_address_set_name(signal_protocol_address* self, const gchar* name);
+gchar* signal_protocol_address_get_name(signal_protocol_address* self);
+void signal_protocol_address_set_device_id(signal_protocol_address* self, int32_t device_id);
+int32_t signal_protocol_address_get_device_id(signal_protocol_address* self);
+
+int signal_vala_randomize(uint8_t *data, size_t len);
+int signal_vala_random_generator(uint8_t *data, size_t len, void *user_data);
+int signal_vala_hmac_sha256_init(void **hmac_context, const uint8_t *key, size_t key_len, void *user_data);
+int signal_vala_hmac_sha256_update(void *hmac_context, const uint8_t *data, size_t data_len, void *user_data);
+int signal_vala_hmac_sha256_final(void *hmac_context, signal_buffer **output, void *user_data);
+void signal_vala_hmac_sha256_cleanup(void *hmac_context, void *user_data);
+int signal_vala_sha512_digest_init(void **digest_context, void *user_data);
+int signal_vala_sha512_digest_update(void *digest_context, const uint8_t *data, size_t data_len, void *user_data);
+int signal_vala_sha512_digest_final(void *digest_context, signal_buffer **output, void *user_data);
+void signal_vala_sha512_digest_cleanup(void *digest_context, void *user_data);
+
+int signal_vala_encrypt(signal_buffer **output,
+ int cipher,
+ const uint8_t *key, size_t key_len,
+ const uint8_t *iv, size_t iv_len,
+ const uint8_t *plaintext, size_t plaintext_len,
+ void *user_data);
+int signal_vala_decrypt(signal_buffer **output,
+ int cipher,
+ const uint8_t *key, size_t key_len,
+ const uint8_t *iv, size_t iv_len,
+ const uint8_t *ciphertext, size_t ciphertext_len,
+ void *user_data);
+void setup_signal_vala_crypto_provider(signal_context *context);
+
+#endif
diff --git a/plugins/omemo/src/signal/simple_iks.vala b/plugins/omemo/src/signal/simple_iks.vala
new file mode 100644
index 00000000..5247c455
--- /dev/null
+++ b/plugins/omemo/src/signal/simple_iks.vala
@@ -0,0 +1,40 @@
+using Gee;
+
+namespace Signal {
+
+public class SimpleIdentityKeyStore : IdentityKeyStore {
+ public override Bytes identity_key_private { get; set; }
+ public override Bytes identity_key_public { get; set; }
+ public override uint32 local_registration_id { get; set; }
+ private Map<string, Map<int, IdentityKeyStore.TrustedIdentity>> trusted_identities = new HashMap<string, Map<int, IdentityKeyStore.TrustedIdentity>>();
+
+ public override void save_identity(Address address, uint8[] key) throws Error {
+ string name = address.name;
+ if (trusted_identities.has_key(name)) {
+ if (trusted_identities[name].has_key(address.device_id)) {
+ trusted_identities[name][address.device_id].key = key;
+ trusted_identity_updated(trusted_identities[name][address.device_id]);
+ } else {
+ trusted_identities[name][address.device_id] = new TrustedIdentity.by_address(address, key);
+ trusted_identity_added(trusted_identities[name][address.device_id]);
+ }
+ } else {
+ trusted_identities[name] = new HashMap<int, IdentityKeyStore.TrustedIdentity>();
+ trusted_identities[name][address.device_id] = new TrustedIdentity.by_address(address, key);
+ trusted_identity_added(trusted_identities[name][address.device_id]);
+ }
+ }
+
+ public override bool is_trusted_identity(Address address, uint8[] key) throws Error {
+ if (!trusted_identities.has_key(address.name)) return true;
+ if (!trusted_identities[address.name].has_key(address.device_id)) return true;
+ uint8[] other_key = trusted_identities[address.name][address.device_id].key;
+ if (other_key.length != key.length) return false;
+ for (int i = 0; i < key.length; i++) {
+ if (other_key[i] != key[i]) return false;
+ }
+ return true;
+ }
+}
+
+}
diff --git a/plugins/omemo/src/signal/simple_pks.vala b/plugins/omemo/src/signal/simple_pks.vala
new file mode 100644
index 00000000..1f059fda
--- /dev/null
+++ b/plugins/omemo/src/signal/simple_pks.vala
@@ -0,0 +1,33 @@
+using Gee;
+
+namespace Signal {
+
+public class SimplePreKeyStore : PreKeyStore {
+ private Map<uint32, PreKeyStore.Key> pre_key_map = new HashMap<uint32, PreKeyStore.Key>();
+
+ public override uint8[]? load_pre_key(uint32 pre_key_id) throws Error {
+ if (contains_pre_key(pre_key_id)) {
+ return pre_key_map[pre_key_id].record;
+ }
+ return null;
+ }
+
+ public override void store_pre_key(uint32 pre_key_id, uint8[] record) throws Error {
+ PreKeyStore.Key key = new Key(pre_key_id, record);
+ pre_key_map[pre_key_id] = key;
+ pre_key_stored(key);
+ }
+
+ public override bool contains_pre_key(uint32 pre_key_id) throws Error {
+ return pre_key_map.has_key(pre_key_id);
+ }
+
+ public override void delete_pre_key(uint32 pre_key_id) throws Error {
+ PreKeyStore.Key key;
+ if (pre_key_map.unset(pre_key_id, out key)) {
+ pre_key_deleted(key);
+ }
+ }
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/src/signal/simple_spks.vala b/plugins/omemo/src/signal/simple_spks.vala
new file mode 100644
index 00000000..f0fe09ab
--- /dev/null
+++ b/plugins/omemo/src/signal/simple_spks.vala
@@ -0,0 +1,33 @@
+using Gee;
+
+namespace Signal {
+
+public class SimpleSignedPreKeyStore : SignedPreKeyStore {
+ private Map<uint32, SignedPreKeyStore.Key> pre_key_map = new HashMap<uint32, SignedPreKeyStore.Key>();
+
+ public override uint8[]? load_signed_pre_key(uint32 pre_key_id) throws Error {
+ if (contains_signed_pre_key(pre_key_id)) {
+ return pre_key_map[pre_key_id].record;
+ }
+ return null;
+ }
+
+ public override void store_signed_pre_key(uint32 pre_key_id, uint8[] record) throws Error {
+ SignedPreKeyStore.Key key = new Key(pre_key_id, record);
+ pre_key_map[pre_key_id] = key;
+ signed_pre_key_stored(key);
+ }
+
+ public override bool contains_signed_pre_key(uint32 pre_key_id) throws Error {
+ return pre_key_map.has_key(pre_key_id);
+ }
+
+ public override void delete_signed_pre_key(uint32 pre_key_id) throws Error {
+ SignedPreKeyStore.Key key;
+ if (pre_key_map.unset(pre_key_id, out key)) {
+ signed_pre_key_deleted(key);
+ }
+ }
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/src/signal/simple_ss.vala b/plugins/omemo/src/signal/simple_ss.vala
new file mode 100644
index 00000000..5213f736
--- /dev/null
+++ b/plugins/omemo/src/signal/simple_ss.vala
@@ -0,0 +1,75 @@
+using Gee;
+
+namespace Signal {
+
+public class SimpleSessionStore : SessionStore {
+
+ private Map<string, ArrayList<SessionStore.Session>> session_map = new HashMap<string, ArrayList<SessionStore.Session>>();
+
+ public override uint8[]? load_session(Address address) throws Error {
+ if (session_map.has_key(address.name)) {
+ foreach (SessionStore.Session session in session_map[address.name]) {
+ if (session.device_id == address.device_id) return session.record;
+ }
+ }
+ return null;
+ }
+
+ public override IntList get_sub_device_sessions(string name) throws Error {
+ IntList res = new IntList();
+ if (session_map.has_key(name)) {
+ foreach (SessionStore.Session session in session_map[name]) {
+ res.add(session.device_id);
+ }
+ }
+ return res;
+ }
+
+ public override void store_session(Address address, uint8[] record) throws Error {
+ if (contains_session(address)) {
+ delete_session(address);
+ }
+ if (!session_map.has_key(address.name)) {
+ session_map[address.name] = new ArrayList<SessionStore.Session>();
+ }
+ SessionStore.Session session = new Session() { name = address.name, device_id = address.device_id, record = record };
+ session_map[address.name].add(session);
+ session_stored(session);
+ }
+
+ public override bool contains_session(Address address) throws Error {
+ if (!session_map.has_key(address.name)) return false;
+ foreach (SessionStore.Session session in session_map[address.name]) {
+ if (session.device_id == address.device_id) return true;
+ }
+ return false;
+ }
+
+ public override void delete_session(Address address) throws Error {
+ if (!session_map.has_key(address.name)) throw_by_code(ErrorCode.UNKNOWN, "No session found");
+ foreach (SessionStore.Session session in session_map[address.name]) {
+ if (session.device_id == address.device_id) {
+ session_map[address.name].remove(session);
+ if (session_map[address.name].size == 0) {
+ session_map.unset(address.name);
+ }
+ session_removed(session);
+ return;
+ }
+ }
+ }
+
+ public override void delete_all_sessions(string name) throws Error {
+ if (session_map.has_key(name)) {
+ foreach (SessionStore.Session session in session_map[name]) {
+ session_map[name].remove(session);
+ if (session_map[name].size == 0) {
+ session_map.unset(name);
+ }
+ session_removed(session);
+ }
+ }
+ }
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/src/signal/store.vala b/plugins/omemo/src/signal/store.vala
new file mode 100644
index 00000000..b440d838
--- /dev/null
+++ b/plugins/omemo/src/signal/store.vala
@@ -0,0 +1,415 @@
+namespace Signal {
+
+public abstract class IdentityKeyStore : Object {
+ public abstract Bytes identity_key_private { get; set; }
+ public abstract Bytes identity_key_public { get; set; }
+ public abstract uint32 local_registration_id { get; set; }
+
+ public signal void trusted_identity_added(TrustedIdentity id);
+ public signal void trusted_identity_updated(TrustedIdentity id);
+
+ public abstract void save_identity(Address address, uint8[] key) throws Error ;
+
+ public abstract bool is_trusted_identity(Address address, uint8[] key) throws Error ;
+
+ public class TrustedIdentity {
+ public uint8[] key { get; set; }
+ public string name { get; private set; }
+ public int device_id { get; private set; }
+
+ public TrustedIdentity(string name, int device_id, uint8[] key) {
+ this.key = key;
+ this.name = name;
+ this.device_id = device_id;
+ }
+
+ public TrustedIdentity.by_address(Address address, uint8[] key) {
+ this(address.name, address.device_id, key);
+ }
+ }
+}
+
+public abstract class SessionStore : Object {
+
+ public signal void session_stored(Session session);
+ public signal void session_removed(Session session);
+ public abstract uint8[]? load_session(Address address) throws Error ;
+
+ public abstract IntList get_sub_device_sessions(string name) throws Error ;
+
+ public abstract void store_session(Address address, uint8[] record) throws Error ;
+
+ public abstract bool contains_session(Address address) throws Error ;
+
+ public abstract void delete_session(Address address) throws Error ;
+
+ public abstract void delete_all_sessions(string name) throws Error ;
+
+ public class Session {
+ public string name;
+ public int device_id;
+ public uint8[] record;
+ }
+}
+
+public abstract class PreKeyStore : Object {
+
+ public signal void pre_key_stored(Key key);
+ public signal void pre_key_deleted(Key key);
+
+ public abstract uint8[]? load_pre_key(uint32 pre_key_id) throws Error ;
+
+ public abstract void store_pre_key(uint32 pre_key_id, uint8[] record) throws Error ;
+
+ public abstract bool contains_pre_key(uint32 pre_key_id) throws Error ;
+
+ public abstract void delete_pre_key(uint32 pre_key_id) throws Error ;
+
+ public class Key {
+ public uint32 key_id { get; private set; }
+ public uint8[] record { get; private set; }
+
+ public Key(uint32 key_id, uint8[] record) {
+ this.key_id = key_id;
+ this.record = record;
+ }
+ }
+}
+
+public abstract class SignedPreKeyStore : Object {
+
+ public signal void signed_pre_key_stored(Key key);
+ public signal void signed_pre_key_deleted(Key key);
+
+ public abstract uint8[]? load_signed_pre_key(uint32 pre_key_id) throws Error ;
+
+ public abstract void store_signed_pre_key(uint32 pre_key_id, uint8[] record) throws Error ;
+
+ public abstract bool contains_signed_pre_key(uint32 pre_key_id) throws Error ;
+
+ public abstract void delete_signed_pre_key(uint32 pre_key_id) throws Error ;
+
+ public class Key {
+ public uint32 key_id { get; private set; }
+ public uint8[] record { get; private set; }
+
+ public Key(uint32 key_id, uint8[] record) {
+ this.key_id = key_id;
+ this.record = record;
+ }
+ }
+}
+
+public class Store : Object {
+ public Context context { get; private set; }
+ public IdentityKeyStore identity_key_store { get; set; default = new SimpleIdentityKeyStore(); }
+ public SessionStore session_store { get; set; default = new SimpleSessionStore(); }
+ public PreKeyStore pre_key_store { get; set; default = new SimplePreKeyStore(); }
+ public SignedPreKeyStore signed_pre_key_store { get; set; default = new SimpleSignedPreKeyStore(); }
+ public uint32 local_registration_id { get { return identity_key_store.local_registration_id; } }
+ internal NativeStoreContext native_context {get { return native_store_context_; }}
+ private NativeStoreContext native_store_context_;
+
+ static int iks_get_identity_key_pair(out Buffer public_data, out Buffer private_data, void* user_data) {
+ Store store = (Store) user_data;
+ public_data = new Buffer.from(store.identity_key_store.identity_key_public.get_data());
+ private_data = new Buffer.from(store.identity_key_store.identity_key_private.get_data());
+ return 0;
+ }
+
+ static int iks_get_local_registration_id(void* user_data, out uint32 registration_id) {
+ Store store = (Store) user_data;
+ registration_id = store.identity_key_store.local_registration_id;
+ return 0;
+ }
+
+ static int iks_save_identity(Address address, uint8[] key, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.identity_key_store.save_identity(address, key);
+ return 0;
+ });
+ }
+
+ static int iks_is_trusted_identity(Address address, uint8[] key, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ return store.identity_key_store.is_trusted_identity(address, key) ? 1 : 0;
+ });
+ }
+
+ static void iks_destroy_func(void* user_data) {
+ }
+
+ static int ss_load_session_func(out Buffer? record, out Buffer? user_record, Address address, void* user_data) {
+ Store store = (Store) user_data;
+ user_record = null; // No support for user_record
+ uint8[]? res = null;
+ try {
+ res = store.session_store.load_session(address);
+ } catch (Error e) {
+ record = null;
+ return e.code;
+ }
+ if (res == null) {
+ record = null;
+ return 0;
+ }
+ record = new Buffer.from((!)res);
+ if (record == null) return ErrorCode.NOMEM;
+ return 1;
+ }
+
+ static int ss_get_sub_device_sessions_func(out IntList? sessions, char[] name, void* user_data) {
+ Store store = (Store) user_data;
+ try {
+ sessions = store.session_store.get_sub_device_sessions(carr_to_string(name));
+ } catch (Error e) {
+ sessions = null;
+ return e.code;
+ }
+ return 0;
+ }
+
+ static int ss_store_session_func(Address address, uint8[] record, uint8[] user_record, void* user_data) {
+ // Ignoring user_record
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.session_store.store_session(address, record);
+ return 0;
+ });
+ }
+
+ static int ss_contains_session_func(Address address, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ return store.session_store.contains_session(address) ? 1 : 0;
+ });
+ }
+
+ static int ss_delete_session_func(Address address, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.session_store.delete_session(address);
+ return 0;
+ });
+ }
+
+ static int ss_delete_all_sessions_func(char[] name, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.session_store.delete_all_sessions(carr_to_string(name));
+ return 0;
+ });
+ }
+
+ static void ss_destroy_func(void* user_data) {
+ }
+
+ static int pks_load_pre_key(out Buffer? record, uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ uint8[]? res = null;
+ try {
+ res = store.pre_key_store.load_pre_key(pre_key_id);
+ } catch (Error e) {
+ record = null;
+ return e.code;
+ }
+ if (res == null) {
+ record = new Buffer(0);
+ return 0;
+ }
+ record = new Buffer.from((!)res);
+ if (record == null) return ErrorCode.NOMEM;
+ return 1;
+ }
+
+ static int pks_store_pre_key(uint32 pre_key_id, uint8[] record, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.pre_key_store.store_pre_key(pre_key_id, record);
+ return 0;
+ });
+ }
+
+ static int pks_contains_pre_key(uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ return store.pre_key_store.contains_pre_key(pre_key_id) ? 1 : 0;
+ });
+ }
+
+ static int pks_remove_pre_key(uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.pre_key_store.delete_pre_key(pre_key_id);
+ return 0;
+ });
+ }
+
+ static void pks_destroy_func(void* user_data) {
+ }
+
+ static int spks_load_signed_pre_key(out Buffer? record, uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ uint8[]? res = null;
+ try {
+ res = store.signed_pre_key_store.load_signed_pre_key(pre_key_id);
+ } catch (Error e) {
+ record = null;
+ return e.code;
+ }
+ if (res == null) {
+ record = new Buffer(0);
+ return 0;
+ }
+ record = new Buffer.from((!)res);
+ if (record == null) return ErrorCode.NOMEM;
+ return 1;
+ }
+
+ static int spks_store_signed_pre_key(uint32 pre_key_id, uint8[] record, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.signed_pre_key_store.store_signed_pre_key(pre_key_id, record);
+ return 0;
+ });
+ }
+
+ static int spks_contains_signed_pre_key(uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ return store.signed_pre_key_store.contains_signed_pre_key(pre_key_id) ? 1 : 0;
+ });
+ }
+
+ static int spks_remove_signed_pre_key(uint32 pre_key_id, void* user_data) {
+ Store store = (Store) user_data;
+ return catch_to_code(() => {
+ store.signed_pre_key_store.delete_signed_pre_key(pre_key_id);
+ return 0;
+ });
+ }
+
+ static void spks_destroy_func(void* user_data) {
+ }
+
+ internal Store(Context context) {
+ this.context = context;
+ NativeStoreContext.create(out native_store_context_, context.native_context);
+
+ NativeIdentityKeyStore iks = NativeIdentityKeyStore() {
+ get_identity_key_pair = iks_get_identity_key_pair,
+ get_local_registration_id = iks_get_local_registration_id,
+ save_identity = iks_save_identity,
+ is_trusted_identity = iks_is_trusted_identity,
+ destroy_func = iks_destroy_func,
+ user_data = this
+ };
+ native_context.set_identity_key_store(iks);
+
+ NativeSessionStore ss = NativeSessionStore() {
+ load_session_func = ss_load_session_func,
+ get_sub_device_sessions_func = ss_get_sub_device_sessions_func,
+ store_session_func = ss_store_session_func,
+ contains_session_func = ss_contains_session_func,
+ delete_session_func = ss_delete_session_func,
+ delete_all_sessions_func = ss_delete_all_sessions_func,
+ destroy_func = ss_destroy_func,
+ user_data = this
+ };
+ native_context.set_session_store(ss);
+
+ NativePreKeyStore pks = NativePreKeyStore() {
+ load_pre_key = pks_load_pre_key,
+ store_pre_key = pks_store_pre_key,
+ contains_pre_key = pks_contains_pre_key,
+ remove_pre_key = pks_remove_pre_key,
+ destroy_func = pks_destroy_func,
+ user_data = this
+ };
+ native_context.set_pre_key_store(pks);
+
+ NativeSignedPreKeyStore spks = NativeSignedPreKeyStore() {
+ load_signed_pre_key = spks_load_signed_pre_key,
+ store_signed_pre_key = spks_store_signed_pre_key,
+ contains_signed_pre_key = spks_contains_signed_pre_key,
+ remove_signed_pre_key = spks_remove_signed_pre_key,
+ destroy_func = spks_destroy_func,
+ user_data = this
+ };
+ native_context.set_signed_pre_key_store(spks);
+ }
+
+ public SessionBuilder create_session_builder(Address other) throws Error {
+ SessionBuilder builder;
+ throw_by_code(session_builder_create(out builder, native_context, other, context.native_context), "Error creating session builder");
+ return builder;
+ }
+
+ public SessionCipher create_session_cipher(Address other) throws Error {
+ SessionCipher cipher;
+ throw_by_code(session_cipher_create(out cipher, native_context, other, context.native_context));
+ return cipher;
+ }
+
+ public IdentityKeyPair identity_key_pair {
+ owned get {
+ IdentityKeyPair pair;
+ Protocol.Identity.get_key_pair(native_context, out pair);
+ return pair;
+ }
+ }
+
+ public bool is_trusted_identity(Address address, ECPublicKey key) throws Error {
+ return throw_by_code(Protocol.Identity.is_trusted_identity(native_context, address, key)) == 1;
+ }
+
+ public void save_identity(Address address, ECPublicKey key) throws Error {
+ throw_by_code(Protocol.Identity.save_identity(native_context, address, key));
+ }
+
+ public bool contains_session(Address other) throws Error {
+ return throw_by_code(Protocol.Session.contains_session(native_context, other)) == 1;
+ }
+
+ public void delete_session(Address address) throws Error {
+ throw_by_code(Protocol.Session.delete_session(native_context, address));
+ }
+
+ public SessionRecord load_session(Address other) throws Error {
+ SessionRecord record;
+ throw_by_code(Protocol.Session.load_session(native_context, out record, other));
+ return record;
+ }
+
+ public bool contains_pre_key(uint32 pre_key_id) throws Error {
+ return throw_by_code(Protocol.PreKey.contains_key(native_context, pre_key_id)) == 1;
+ }
+
+ public void store_pre_key(PreKeyRecord record) throws Error {
+ throw_by_code(Protocol.PreKey.store_key(native_context, record));
+ }
+
+ public PreKeyRecord load_pre_key(uint32 pre_key_id) throws Error {
+ PreKeyRecord res;
+ throw_by_code(Protocol.PreKey.load_key(native_context, out res, pre_key_id));
+ return res;
+ }
+
+ public bool contains_signed_pre_key(uint32 pre_key_id) throws Error {
+ return throw_by_code(Protocol.SignedPreKey.contains_key(native_context, pre_key_id)) == 1;
+ }
+
+ public void store_signed_pre_key(SignedPreKeyRecord record) throws Error {
+ throw_by_code(Protocol.SignedPreKey.store_key(native_context, record));
+ }
+
+ public SignedPreKeyRecord load_signed_pre_key(uint32 pre_key_id) throws Error {
+ SignedPreKeyRecord res;
+ throw_by_code(Protocol.SignedPreKey.load_key(native_context, out res, pre_key_id));
+ return res;
+ }
+}
+
+}
diff --git a/plugins/omemo/src/signal/util.vala b/plugins/omemo/src/signal/util.vala
new file mode 100644
index 00000000..4c0ae72d
--- /dev/null
+++ b/plugins/omemo/src/signal/util.vala
@@ -0,0 +1,45 @@
+namespace Signal {
+
+public ECPublicKey generate_public_key(ECPrivateKey private_key) throws Error {
+ ECPublicKey public_key;
+ throw_by_code(ECPublicKey.generate(out public_key, private_key), "Error generating public key");
+
+ return public_key;
+}
+
+public uint8[] calculate_agreement(ECPublicKey public_key, ECPrivateKey private_key) throws Error {
+ uint8[] res;
+ int len = Curve.calculate_agreement(out res, public_key, private_key);
+ throw_by_code(len, "Error calculating agreement");
+ res.length = len;
+ return res;
+}
+
+public bool verify_signature(ECPublicKey signing_key, uint8[] message, uint8[] signature) throws Error {
+ return throw_by_code(Curve.verify_signature(signing_key, message, signature)) == 1;
+}
+
+public PreKeyBundle create_pre_key_bundle(uint32 registration_id, int device_id, uint32 pre_key_id, ECPublicKey? pre_key_public,
+ uint32 signed_pre_key_id, ECPublicKey? signed_pre_key_public, uint8[]? signed_pre_key_signature, ECPublicKey? identity_key) throws Error {
+ PreKeyBundle res;
+ throw_by_code(PreKeyBundle.create(out res, registration_id, device_id, pre_key_id, pre_key_public, signed_pre_key_id, signed_pre_key_public, signed_pre_key_signature, identity_key), "Error creating PreKeyBundle");
+ return res;
+}
+
+internal string carr_to_string(char[] carr) {
+ char[] nu = new char[carr.length + 1];
+ Memory.copy(nu, carr, carr.length);
+ return (string) nu;
+}
+
+internal delegate int CodeErroringFunc() throws Error;
+
+internal int catch_to_code(CodeErroringFunc func) {
+ try {
+ return func();
+ } catch (Error e) {
+ return e.code;
+ }
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/tests/signal/common.vala b/plugins/omemo/tests/signal/common.vala
new file mode 100644
index 00000000..9bb9b1dc
--- /dev/null
+++ b/plugins/omemo/tests/signal/common.vala
@@ -0,0 +1,92 @@
+namespace Signal.Test {
+
+int main(string[] args) {
+ GLib.Test.init(ref args);
+ GLib.Test.set_nonfatal_assertions();
+ TestSuite.get_root().add_suite(new Curve25519().get_suite());
+ TestSuite.get_root().add_suite(new SessionBuilderTest().get_suite());
+ TestSuite.get_root().add_suite(new HKDF().get_suite());
+ return GLib.Test.run();
+}
+
+Store setup_test_store_context(Context global_context) {
+ Store store = global_context.create_store();
+ try {
+ store.identity_key_store.local_registration_id = (Random.next_int() % 16380) + 1;
+
+ ECKeyPair key_pair = global_context.generate_key_pair();
+ store.identity_key_store.identity_key_private = new Bytes(key_pair.private.serialize());
+ store.identity_key_store.identity_key_public = new Bytes(key_pair.public.serialize());
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ return store;
+}
+
+ECPublicKey? create_test_ec_public_key(Context context) {
+ try {
+ return context.generate_key_pair().public;
+ } catch (Error e) {
+ fail_if_reached();
+ return null;
+ }
+}
+
+bool fail_if(bool exp, string? reason = null) {
+ if (exp) {
+ if (reason != null) GLib.Test.message(reason);
+ GLib.Test.fail();
+ return true;
+ }
+ return false;
+}
+
+void fail_if_reached(string? reason = null) {
+ fail_if(true, reason);
+}
+
+delegate void ErrorFunc() throws Error;
+
+void fail_if_not_error_code(ErrorFunc func, int expectedCode, string? reason = null) {
+ try {
+ func();
+ fail_if_reached(@"$(reason + ": " ?? "")no error thrown");
+ } catch (Error e) {
+ fail_if_not_eq_int(e.code, expectedCode, @"$(reason + ": " ?? "")caught unexpected error");
+ }
+}
+
+bool fail_if_not(bool exp, string? reason = null) {
+ return fail_if(!exp, reason);
+}
+
+bool fail_if_eq_int(int left, int right, string? reason = null) {
+ return fail_if(left == right, @"$(reason + ": " ?? "")$left == $right");
+}
+
+bool fail_if_not_eq_int(int left, int right, string? reason = null) {
+ return fail_if_not(left == right, @"$(reason + ": " ?? "")$left != $right");
+}
+
+bool fail_if_not_eq_str(string left, string right, string? reason = null) {
+ return fail_if_not(left == right, @"$(reason + ": " ?? "")$left != $right");
+}
+
+bool fail_if_not_eq_uint8_arr(uint8[] left, uint8[] right, string? reason = null) {
+ if (fail_if_not_eq_int(left.length, right.length, @"$(reason + ": " ?? "")array length not equal")) return true;
+ return fail_if_not_eq_str(Base64.encode(left), Base64.encode(right), reason);
+}
+
+bool fail_if_not_zero_int(int zero, string? reason = null) {
+ return fail_if_not_eq_int(zero, 0, reason);
+}
+
+bool fail_if_zero_int(int zero, string? reason = null) {
+ return fail_if_eq_int(zero, 0, reason);
+}
+
+bool fail_if_null(void* what, string? reason = null) {
+ return fail_if(what == null || (size_t)what == 0, reason);
+}
+
+}
diff --git a/plugins/omemo/tests/signal/curve25519.vala b/plugins/omemo/tests/signal/curve25519.vala
new file mode 100644
index 00000000..6dfae62f
--- /dev/null
+++ b/plugins/omemo/tests/signal/curve25519.vala
@@ -0,0 +1,207 @@
+namespace Signal.Test {
+
+class Curve25519 : Gee.TestCase {
+
+ public Curve25519() {
+ base("Curve25519");
+ add_test("agreement", test_curve25519_agreement);
+ add_test("generate_public", test_curve25519_generate_public);
+ add_test("random_agreements", test_curve25519_random_agreements);
+ add_test("signature", test_curve25519_signature);
+ }
+
+ private Context global_context;
+
+ public override void set_up() {
+ try {
+ global_context = new Context();
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+ public override void tear_down() {
+ global_context = null;
+ }
+
+ void test_curve25519_agreement() {
+ try {
+ uint8[] alicePublic = {
+ 0x05, 0x1b, 0xb7, 0x59, 0x66,
+ 0xf2, 0xe9, 0x3a, 0x36, 0x91,
+ 0xdf, 0xff, 0x94, 0x2b, 0xb2,
+ 0xa4, 0x66, 0xa1, 0xc0, 0x8b,
+ 0x8d, 0x78, 0xca, 0x3f, 0x4d,
+ 0x6d, 0xf8, 0xb8, 0xbf, 0xa2,
+ 0xe4, 0xee, 0x28};
+
+ uint8[] alicePrivate = {
+ 0xc8, 0x06, 0x43, 0x9d, 0xc9,
+ 0xd2, 0xc4, 0x76, 0xff, 0xed,
+ 0x8f, 0x25, 0x80, 0xc0, 0x88,
+ 0x8d, 0x58, 0xab, 0x40, 0x6b,
+ 0xf7, 0xae, 0x36, 0x98, 0x87,
+ 0x90, 0x21, 0xb9, 0x6b, 0xb4,
+ 0xbf, 0x59};
+
+ uint8[] bobPublic = {
+ 0x05, 0x65, 0x36, 0x14, 0x99,
+ 0x3d, 0x2b, 0x15, 0xee, 0x9e,
+ 0x5f, 0xd3, 0xd8, 0x6c, 0xe7,
+ 0x19, 0xef, 0x4e, 0xc1, 0xda,
+ 0xae, 0x18, 0x86, 0xa8, 0x7b,
+ 0x3f, 0x5f, 0xa9, 0x56, 0x5a,
+ 0x27, 0xa2, 0x2f};
+
+ uint8[] bobPrivate = {
+ 0xb0, 0x3b, 0x34, 0xc3, 0x3a,
+ 0x1c, 0x44, 0xf2, 0x25, 0xb6,
+ 0x62, 0xd2, 0xbf, 0x48, 0x59,
+ 0xb8, 0x13, 0x54, 0x11, 0xfa,
+ 0x7b, 0x03, 0x86, 0xd4, 0x5f,
+ 0xb7, 0x5d, 0xc5, 0xb9, 0x1b,
+ 0x44, 0x66};
+
+ uint8[] shared = {
+ 0x32, 0x5f, 0x23, 0x93, 0x28,
+ 0x94, 0x1c, 0xed, 0x6e, 0x67,
+ 0x3b, 0x86, 0xba, 0x41, 0x01,
+ 0x74, 0x48, 0xe9, 0x9b, 0x64,
+ 0x9a, 0x9c, 0x38, 0x06, 0xc1,
+ 0xdd, 0x7c, 0xa4, 0xc4, 0x77,
+ 0xe6, 0x29};
+
+ ECPublicKey alice_public_key = global_context.decode_public_key(alicePublic);
+ ECPrivateKey alice_private_key = global_context.decode_private_key(alicePrivate);
+ ECPublicKey bob_public_key = global_context.decode_public_key(bobPublic);
+ ECPrivateKey bob_private_key = global_context.decode_private_key(bobPrivate);
+
+ uint8[] shared_one = calculate_agreement(alice_public_key, bob_private_key);
+ uint8[] shared_two = calculate_agreement(bob_public_key, alice_private_key);
+
+ fail_if_not_eq_int(shared_one.length, 32);
+ fail_if_not_eq_int(shared_two.length, 32);
+ fail_if_not_eq_uint8_arr(shared, shared_one);
+ fail_if_not_eq_uint8_arr(shared_one, shared_two);
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+ void test_curve25519_generate_public() {
+ try {
+ uint8[] alicePublic = {
+ 0x05, 0x1b, 0xb7, 0x59, 0x66,
+ 0xf2, 0xe9, 0x3a, 0x36, 0x91,
+ 0xdf, 0xff, 0x94, 0x2b, 0xb2,
+ 0xa4, 0x66, 0xa1, 0xc0, 0x8b,
+ 0x8d, 0x78, 0xca, 0x3f, 0x4d,
+ 0x6d, 0xf8, 0xb8, 0xbf, 0xa2,
+ 0xe4, 0xee, 0x28};
+
+ uint8[] alicePrivate = {
+ 0xc8, 0x06, 0x43, 0x9d, 0xc9,
+ 0xd2, 0xc4, 0x76, 0xff, 0xed,
+ 0x8f, 0x25, 0x80, 0xc0, 0x88,
+ 0x8d, 0x58, 0xab, 0x40, 0x6b,
+ 0xf7, 0xae, 0x36, 0x98, 0x87,
+ 0x90, 0x21, 0xb9, 0x6b, 0xb4,
+ 0xbf, 0x59};
+
+ ECPrivateKey alice_private_key = global_context.decode_private_key(alicePrivate);
+ ECPublicKey alice_expected_public_key = global_context.decode_public_key(alicePublic);
+ ECPublicKey alice_public_key = generate_public_key(alice_private_key);
+
+ fail_if_not_zero_int(alice_expected_public_key.compare(alice_public_key));
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+ void test_curve25519_random_agreements() {
+ try {
+ ECKeyPair alice_key_pair = null;
+ ECPublicKey alice_public_key = null;
+ ECPrivateKey alice_private_key = null;
+ ECKeyPair bob_key_pair = null;
+ ECPublicKey bob_public_key = null;
+ ECPrivateKey bob_private_key = null;
+ uint8[] shared_alice = null;
+ uint8[] shared_bob = null;
+
+ for (int i = 0; i < 50; i++) {
+ fail_if_null(alice_key_pair = global_context.generate_key_pair());
+ fail_if_null(alice_public_key = alice_key_pair.public);
+ fail_if_null(alice_private_key = alice_key_pair.private);
+
+ fail_if_null(bob_key_pair = global_context.generate_key_pair());
+ fail_if_null(bob_public_key = bob_key_pair.public);
+ fail_if_null(bob_private_key = bob_key_pair.private);
+
+ shared_alice = calculate_agreement(bob_public_key, alice_private_key);
+ fail_if_not_eq_int(shared_alice.length, 32);
+
+ shared_bob = calculate_agreement(alice_public_key, bob_private_key);
+ fail_if_not_eq_int(shared_bob.length, 32);
+
+ fail_if_not_eq_uint8_arr(shared_alice, shared_bob);
+ }
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+ void test_curve25519_signature() {
+ try {
+ uint8[] aliceIdentityPrivate = {
+ 0xc0, 0x97, 0x24, 0x84, 0x12, 0xe5, 0x8b, 0xf0,
+ 0x5d, 0xf4, 0x87, 0x96, 0x82, 0x05, 0x13, 0x27,
+ 0x94, 0x17, 0x8e, 0x36, 0x76, 0x37, 0xf5, 0x81,
+ 0x8f, 0x81, 0xe0, 0xe6, 0xce, 0x73, 0xe8, 0x65};
+
+ uint8[] aliceIdentityPublic = {
+ 0x05, 0xab, 0x7e, 0x71, 0x7d, 0x4a, 0x16, 0x3b,
+ 0x7d, 0x9a, 0x1d, 0x80, 0x71, 0xdf, 0xe9, 0xdc,
+ 0xf8, 0xcd, 0xcd, 0x1c, 0xea, 0x33, 0x39, 0xb6,
+ 0x35, 0x6b, 0xe8, 0x4d, 0x88, 0x7e, 0x32, 0x2c,
+ 0x64};
+
+ uint8[] aliceEphemeralPublic = {
+ 0x05, 0xed, 0xce, 0x9d, 0x9c, 0x41, 0x5c, 0xa7,
+ 0x8c, 0xb7, 0x25, 0x2e, 0x72, 0xc2, 0xc4, 0xa5,
+ 0x54, 0xd3, 0xeb, 0x29, 0x48, 0x5a, 0x0e, 0x1d,
+ 0x50, 0x31, 0x18, 0xd1, 0xa8, 0x2d, 0x99, 0xfb,
+ 0x4a};
+
+ uint8[] aliceSignature = {
+ 0x5d, 0xe8, 0x8c, 0xa9, 0xa8, 0x9b, 0x4a, 0x11,
+ 0x5d, 0xa7, 0x91, 0x09, 0xc6, 0x7c, 0x9c, 0x74,
+ 0x64, 0xa3, 0xe4, 0x18, 0x02, 0x74, 0xf1, 0xcb,
+ 0x8c, 0x63, 0xc2, 0x98, 0x4e, 0x28, 0x6d, 0xfb,
+ 0xed, 0xe8, 0x2d, 0xeb, 0x9d, 0xcd, 0x9f, 0xae,
+ 0x0b, 0xfb, 0xb8, 0x21, 0x56, 0x9b, 0x3d, 0x90,
+ 0x01, 0xbd, 0x81, 0x30, 0xcd, 0x11, 0xd4, 0x86,
+ 0xce, 0xf0, 0x47, 0xbd, 0x60, 0xb8, 0x6e, 0x88};
+
+ global_context.decode_private_key(aliceIdentityPrivate);
+ global_context.decode_public_key(aliceEphemeralPublic);
+ ECPublicKey alice_public_key = global_context.decode_public_key(aliceIdentityPublic);
+
+ fail_if(!verify_signature(alice_public_key, aliceEphemeralPublic, aliceSignature), "signature verification failed");
+
+ uint8[] modifiedSignature = new uint8[aliceSignature.length];
+
+ for (int i = 0; i < aliceSignature.length; i++) {
+ Memory.copy(modifiedSignature, aliceSignature, aliceSignature.length);
+ modifiedSignature[i] ^= 0x01;
+
+ fail_if(verify_signature(alice_public_key, aliceEphemeralPublic, modifiedSignature), "invalid signature verification succeeded");
+ }
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/tests/signal/hkdf.vala b/plugins/omemo/tests/signal/hkdf.vala
new file mode 100644
index 00000000..c30af275
--- /dev/null
+++ b/plugins/omemo/tests/signal/hkdf.vala
@@ -0,0 +1,59 @@
+namespace Signal.Test {
+
+class HKDF : Gee.TestCase {
+
+ public HKDF() {
+ base("HKDF");
+ add_test("vector_v3", test_hkdf_vector_v3);
+ }
+
+ private Context global_context;
+
+ public override void set_up() {
+ try {
+ global_context = new Context();
+ } catch (Error e) {
+ fail_if_reached();
+ }
+ }
+
+ public override void tear_down() {
+ global_context = null;
+ }
+
+ public void test_hkdf_vector_v3() {
+ uint8[] ikm = {
+ 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+ 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+ 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b};
+
+ uint8[] salt = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0a, 0x0b, 0x0c};
+
+ uint8[] info = {
+ 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+ 0xf8, 0xf9};
+
+ uint8[] okm = {
+ 0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a,
+ 0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a,
+ 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c,
+ 0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf,
+ 0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18,
+ 0x58, 0x65};
+
+ NativeHkdfContext context = null;
+ fail_if_not_zero_int(NativeHkdfContext.create(out context, 3, global_context.native_context));
+
+ uint8[] output = null;
+ int result = (int) context.derive_secrets(out output, ikm, salt, info, 42);
+ fail_if_not_eq_int(result, okm.length);
+ output.length = result;
+
+ fail_if_not_eq_uint8_arr(output, okm);
+ }
+
+}
+
+} \ No newline at end of file
diff --git a/plugins/omemo/tests/signal/session_builder.vala b/plugins/omemo/tests/signal/session_builder.vala
new file mode 100644
index 00000000..7e2448e1
--- /dev/null
+++ b/plugins/omemo/tests/signal/session_builder.vala
@@ -0,0 +1,400 @@
+namespace Signal.Test {
+
+class SessionBuilderTest : Gee.TestCase {
+ Address alice_address;
+ Address bob_address;
+
+ public SessionBuilderTest() {
+ base("SessionBuilder");
+
+ add_test("basic_pre_key_v2", test_basic_pre_key_v2);
+ add_test("basic_pre_key_v3", test_basic_pre_key_v3);
+ add_test("bad_signed_pre_key_signature", test_bad_signed_pre_key_signature);
+ add_test("repeat_bundle_message_v2", test_repeat_bundle_message_v2);
+ }
+
+ private Context global_context;
+
+ public override void set_up() {
+ try {
+ global_context = new Context();
+ alice_address = new Address("+14151111111", 1);
+ bob_address = new Address("+14152222222", 1);
+ } catch (Error e) {
+ fail_if_reached(@"Unexpected error: $(e.message)");
+ }
+ }
+
+ public override void tear_down() {
+ global_context = null;
+ alice_address = null;
+ bob_address = null;
+ }
+
+ void test_basic_pre_key_v2() {
+ try {
+ /* Create Alice's data store and session builder */
+ Store alice_store = setup_test_store_context(global_context);
+ SessionBuilder alice_session_builder = alice_store.create_session_builder(bob_address);
+
+ /* Create Bob's data store and pre key bundle */
+ Store bob_store = setup_test_store_context(global_context);
+ uint32 bob_local_registration_id = bob_store.local_registration_id;
+ IdentityKeyPair bob_identity_key_pair = bob_store.identity_key_pair;
+ ECKeyPair bob_pre_key_pair = global_context.generate_key_pair();
+
+ PreKeyBundle bob_pre_key = create_pre_key_bundle(bob_local_registration_id, 1, 31337, bob_pre_key_pair.public, 0, null, null, bob_identity_key_pair.public);
+
+ /*
+ * Have Alice process Bob's pre key bundle, which should fail due to a
+ * missing unsigned pre key.
+ */
+ fail_if_not_error_code(() => alice_session_builder.process_pre_key_bundle(bob_pre_key), ErrorCode.INVALID_KEY);
+ } catch(Error e) {
+ fail_if_reached(@"Unexpected error: $(e.message)");
+ }
+ }
+
+ void test_basic_pre_key_v3() {
+ try {
+ /* Create Alice's data store and session builder */
+ Store alice_store = setup_test_store_context(global_context);
+ SessionBuilder alice_session_builder = alice_store.create_session_builder(bob_address);
+
+ /* Create Bob's data store and pre key bundle */
+ Store bob_store = setup_test_store_context(global_context);
+ uint32 bob_local_registration_id = bob_store.local_registration_id;
+ ECKeyPair bob_pre_key_pair = global_context.generate_key_pair();
+ ECKeyPair bob_signed_pre_key_pair = global_context.generate_key_pair();
+ IdentityKeyPair bob_identity_key_pair = bob_store.identity_key_pair;
+
+ uint8[] bob_signed_pre_key_signature = global_context.calculate_signature(bob_identity_key_pair.private, bob_signed_pre_key_pair.public.serialize());
+
+ PreKeyBundle bob_pre_key = create_pre_key_bundle(bob_local_registration_id, 1, 31337, bob_pre_key_pair.public, 22, bob_signed_pre_key_pair.public, bob_signed_pre_key_signature, bob_identity_key_pair.public);
+
+ /* Have Alice process Bob's pre key bundle */
+ alice_session_builder.process_pre_key_bundle(bob_pre_key);
+
+ /* Check that we can load the session state and verify its version */
+ fail_if_not(alice_store.contains_session(bob_address));
+
+ SessionRecord loaded_record = alice_store.load_session(bob_address);
+ fail_if_not_eq_int((int)loaded_record.state.session_version, 3);
+
+ /* Encrypt an outgoing message to send to Bob */
+ string original_message = "L'homme est condamné à être libre";
+ SessionCipher alice_session_cipher = alice_store.create_session_cipher(bob_address);
+
+ CiphertextMessage outgoing_message = alice_session_cipher.encrypt(original_message.data);
+ fail_if_not_eq_int(outgoing_message.type, CiphertextType.PREKEY);
+
+ /* Convert to an incoming message for Bob */
+ PreKeySignalMessage incoming_message = global_context.deserialize_pre_key_signal_message(outgoing_message.serialized);
+
+ /* Save the pre key and signed pre key in Bob's data store */
+ PreKeyRecord bob_pre_key_record;
+ throw_by_code(PreKeyRecord.create(out bob_pre_key_record, bob_pre_key.pre_key_id, bob_pre_key_pair));
+ bob_store.store_pre_key(bob_pre_key_record);
+
+ SignedPreKeyRecord bob_signed_pre_key_record;
+ throw_by_code(SignedPreKeyRecord.create(out bob_signed_pre_key_record, 22, new DateTime.now_utc().to_unix(), bob_signed_pre_key_pair, bob_signed_pre_key_signature));
+ bob_store.store_signed_pre_key(bob_signed_pre_key_record);
+
+ /* Create Bob's session cipher and decrypt the message from Alice */
+ SessionCipher bob_session_cipher = bob_store.create_session_cipher(alice_address);
+
+ /* Prepare the data for the callback test */
+ //int callback_context = 1234;
+ //bob_session_cipher.user_data =
+ //bob_session_cipher.decryption_callback =
+ uint8[] plaintext = bob_session_cipher.decrypt_pre_key_signal_message(incoming_message);
+
+ /* Clean up callback data */
+ bob_session_cipher.user_data = null;
+ bob_session_cipher.decryption_callback = null;
+
+ /* Verify Bob's session state and the decrypted message */
+ fail_if_not(bob_store.contains_session(alice_address));
+
+ SessionRecord alice_recipient_session_record = bob_store.load_session(alice_address);
+
+ SessionState alice_recipient_session_state = alice_recipient_session_record.state;
+ fail_if_not_eq_int((int)alice_recipient_session_state.session_version, 3);
+ fail_if_null(alice_recipient_session_state.alice_base_key);
+
+ fail_if_not_eq_uint8_arr(original_message.data, plaintext);
+
+ /* Have Bob send a reply to Alice */
+ CiphertextMessage bob_outgoing_message = bob_session_cipher.encrypt(original_message.data);
+ fail_if_not_eq_int(bob_outgoing_message.type, CiphertextType.SIGNAL);
+
+ /* Verify that Alice can decrypt it */
+ SignalMessage bob_outgoing_message_copy = global_context.copy_signal_message(bob_outgoing_message);
+
+ uint8[] alice_plaintext = alice_session_cipher.decrypt_signal_message(bob_outgoing_message_copy);
+
+ fail_if_not_eq_uint8_arr(original_message.data, alice_plaintext);
+
+ GLib.Test.message("Pre-interaction tests complete");
+
+ /* Interaction tests */
+ run_interaction(alice_store, bob_store);
+
+ /* Cleanup state from previous tests that we need to replace */
+ alice_store = null;
+ bob_pre_key_pair = null;
+ bob_signed_pre_key_pair = null;
+ bob_identity_key_pair = null;
+ bob_signed_pre_key_signature = null;
+ bob_pre_key_record = null;
+ bob_signed_pre_key_record = null;
+
+ /* Create Alice's new session data */
+ alice_store = setup_test_store_context(global_context);
+ alice_session_builder = alice_store.create_session_builder(bob_address);
+ alice_session_cipher = alice_store.create_session_cipher(bob_address);
+
+ /* Create Bob's new pre key bundle */
+ bob_pre_key_pair = global_context.generate_key_pair();
+ bob_signed_pre_key_pair = global_context.generate_key_pair();
+ bob_identity_key_pair = bob_store.identity_key_pair;
+ bob_signed_pre_key_signature = global_context.calculate_signature(bob_identity_key_pair.private, bob_signed_pre_key_pair.public.serialize());
+ bob_pre_key = create_pre_key_bundle(bob_local_registration_id, 1, 31338, bob_pre_key_pair.public, 23, bob_signed_pre_key_pair.public, bob_signed_pre_key_signature, bob_identity_key_pair.public);
+
+ /* Save the new pre key and signed pre key in Bob's data store */
+ throw_by_code(PreKeyRecord.create(out bob_pre_key_record, bob_pre_key.pre_key_id, bob_pre_key_pair));
+ bob_store.store_pre_key(bob_pre_key_record);
+
+ throw_by_code(SignedPreKeyRecord.create(out bob_signed_pre_key_record, 23, new DateTime.now_utc().to_unix(), bob_signed_pre_key_pair, bob_signed_pre_key_signature));
+ bob_store.store_signed_pre_key(bob_signed_pre_key_record);
+
+ /* Have Alice process Bob's pre key bundle */
+ alice_session_builder.process_pre_key_bundle(bob_pre_key);
+
+ /* Have Alice encrypt a message for Bob */
+ outgoing_message = alice_session_cipher.encrypt(original_message.data);
+ fail_if_not_eq_int(outgoing_message.type, CiphertextType.PREKEY);
+
+ /* Have Bob try to decrypt the message */
+ PreKeySignalMessage outgoing_message_copy = global_context.copy_pre_key_signal_message(outgoing_message);
+
+ /* The decrypt should fail with a specific error */
+ fail_if_not_error_code(() => bob_session_cipher.decrypt_pre_key_signal_message(outgoing_message_copy), ErrorCode.UNTRUSTED_IDENTITY);
+
+ outgoing_message_copy = global_context.copy_pre_key_signal_message(outgoing_message);
+
+ /* Save the identity key to Bob's store */
+ bob_store.save_identity(alice_address, outgoing_message_copy.identity_key);
+
+ /* Try the decrypt again, this time it should succeed */
+ outgoing_message_copy = global_context.copy_pre_key_signal_message(outgoing_message);
+ plaintext = bob_session_cipher.decrypt_pre_key_signal_message(outgoing_message_copy);
+
+ fail_if_not_eq_uint8_arr(original_message.data, plaintext);
+
+ /* Create a new pre key for Bob */
+ ECPublicKey test_public_key = create_test_ec_public_key(global_context);
+
+ IdentityKeyPair alice_identity_key_pair = alice_store.identity_key_pair;
+
+ bob_pre_key = create_pre_key_bundle(bob_local_registration_id, 1, 31337, test_public_key, 23, bob_signed_pre_key_pair.public, bob_signed_pre_key_signature, alice_identity_key_pair.public);
+
+ /* Have Alice process Bob's new pre key bundle, which should fail */
+ fail_if_not_error_code(() => alice_session_builder.process_pre_key_bundle(bob_pre_key), ErrorCode.UNTRUSTED_IDENTITY);
+
+ GLib.Test.message("Post-interaction tests complete");
+ } catch(Error e) {
+ fail_if_reached(@"Unexpected error: $(e.message)");
+ }
+ }
+
+ void test_bad_signed_pre_key_signature() {
+ try {
+ /* Create Alice's data store and session builder */
+ Store alice_store = setup_test_store_context(global_context);
+ SessionBuilder alice_session_builder = alice_store.create_session_builder(bob_address);
+
+ /* Create Bob's data store */
+ Store bob_store = setup_test_store_context(global_context);
+
+ /* Create Bob's regular and signed pre key pairs */
+ ECKeyPair bob_pre_key_pair = global_context.generate_key_pair();
+ ECKeyPair bob_signed_pre_key_pair = global_context.generate_key_pair();
+
+ /* Create Bob's signed pre key signature */
+ IdentityKeyPair bob_identity_key_pair = bob_store.identity_key_pair;
+ uint8[] bob_signed_pre_key_signature = global_context.calculate_signature(bob_identity_key_pair.private, bob_signed_pre_key_pair.public.serialize());
+
+ for (int i = 0; i < bob_signed_pre_key_signature.length * 8; i++) {
+ uint8[] modified_signature = bob_signed_pre_key_signature[0:bob_signed_pre_key_signature.length];
+
+ /* Intentionally corrupt the signature data */
+ modified_signature[i/8] ^= (1 << ((uint8)i % 8));
+
+ /* Create a pre key bundle */
+ PreKeyBundle bob_pre_key = create_pre_key_bundle(bob_store.local_registration_id,1,31137,bob_pre_key_pair.public,22,bob_signed_pre_key_pair.public,modified_signature,bob_identity_key_pair.public);
+
+ /* Process the bundle and make sure we fail with an invalid key error */
+ fail_if_not_error_code(() => alice_session_builder.process_pre_key_bundle(bob_pre_key), ErrorCode.INVALID_KEY);
+ }
+
+ /* Create a correct pre key bundle */
+ PreKeyBundle bob_pre_key = create_pre_key_bundle(bob_store.local_registration_id,1,31137,bob_pre_key_pair.public,22,bob_signed_pre_key_pair.public,bob_signed_pre_key_signature,bob_identity_key_pair.public);
+
+ /* Process the bundle and make sure we do not fail */
+ alice_session_builder.process_pre_key_bundle(bob_pre_key);
+ } catch(Error e) {
+ fail_if_reached(@"Unexpected error: $(e.message)");
+ }
+ }
+
+ void test_repeat_bundle_message_v2() {
+ try {
+ /* Create Alice's data store and session builder */
+ Store alice_store = setup_test_store_context(global_context);
+ SessionBuilder alice_session_builder = alice_store.create_session_builder(bob_address);
+
+ /* Create Bob's data store and pre key bundle */
+ Store bob_store = setup_test_store_context(global_context);
+ ECKeyPair bob_pre_key_pair = global_context.generate_key_pair();
+ ECKeyPair bob_signed_pre_key_pair = global_context.generate_key_pair();
+ uint8[] bob_signed_pre_key_signature = global_context.calculate_signature(bob_store.identity_key_pair.private, bob_signed_pre_key_pair.public.serialize());
+ PreKeyBundle bob_pre_key = create_pre_key_bundle(bob_store.local_registration_id,1,31337,bob_pre_key_pair.public,0,null,null,bob_store.identity_key_pair.public);
+
+ /* Add Bob's pre keys to Bob's data store */
+ PreKeyRecord bob_pre_key_record;
+ throw_by_code(PreKeyRecord.create(out bob_pre_key_record, bob_pre_key.pre_key_id, bob_pre_key_pair));
+ bob_store.store_pre_key(bob_pre_key_record);
+ SignedPreKeyRecord bob_signed_pre_key_record;
+ throw_by_code(SignedPreKeyRecord.create(out bob_signed_pre_key_record, 22, new DateTime.now_utc().to_unix(), bob_signed_pre_key_pair, bob_signed_pre_key_signature));
+ bob_store.store_signed_pre_key(bob_signed_pre_key_record);
+
+ /*
+ * Have Alice process Bob's pre key bundle, which should fail due to a
+ * missing signed pre key.
+ */
+ fail_if_not_error_code(() => alice_session_builder.process_pre_key_bundle(bob_pre_key), ErrorCode.INVALID_KEY);
+ } catch(Error e) {
+ fail_if_reached(@"Unexpected error: $(e.message)");
+ }
+ }
+
+ class Holder {
+ public uint8[] data { get; private set; }
+
+ public Holder(uint8[] data) {
+ this.data = data;
+ }
+ }
+
+ void run_interaction(Store alice_store, Store bob_store) throws Error {
+
+ /* Create the session ciphers */
+ SessionCipher alice_session_cipher = alice_store.create_session_cipher(bob_address);
+ SessionCipher bob_session_cipher = bob_store.create_session_cipher(alice_address);
+
+ /* Create a test message */
+ string original_message = "smert ze smert";
+
+ /* Simulate Alice sending a message to Bob */
+ CiphertextMessage alice_message = alice_session_cipher.encrypt(original_message.data);
+ fail_if_not_eq_int(alice_message.type, CiphertextType.SIGNAL);
+
+ SignalMessage alice_message_copy = global_context.copy_signal_message(alice_message);
+ uint8[] plaintext = bob_session_cipher.decrypt_signal_message(alice_message_copy);
+ fail_if_not_eq_uint8_arr(original_message.data, plaintext);
+
+ GLib.Test.message("Interaction complete: Alice -> Bob");
+
+ /* Simulate Bob sending a message to Alice */
+ CiphertextMessage bob_message = bob_session_cipher.encrypt(original_message.data);
+ fail_if_not_eq_int(alice_message.type, CiphertextType.SIGNAL);
+
+ SignalMessage bob_message_copy = global_context.copy_signal_message(bob_message);
+ plaintext = alice_session_cipher.decrypt_signal_message(bob_message_copy);
+ fail_if_not_eq_uint8_arr(original_message.data, plaintext);
+
+ GLib.Test.message("Interaction complete: Bob -> Alice");
+
+ /* Looping Alice -> Bob */
+ for (int i = 0; i < 10; i++) {
+ uint8[] looping_message = create_looping_message(i);
+ CiphertextMessage alice_looping_message = alice_session_cipher.encrypt(looping_message);
+ SignalMessage alice_looping_message_copy = global_context.copy_signal_message(alice_looping_message);
+ uint8[] looping_plaintext = bob_session_cipher.decrypt_signal_message(alice_looping_message_copy);
+ fail_if_not_eq_uint8_arr(looping_message, looping_plaintext);
+ }
+ GLib.Test.message("Interaction complete: Alice -> Bob (looping)");
+
+ /* Looping Bob -> Alice */
+ for (int i = 0; i < 10; i++) {
+ uint8[] looping_message = create_looping_message(i);
+ CiphertextMessage bob_looping_message = bob_session_cipher.encrypt(looping_message);
+ SignalMessage bob_looping_message_copy = global_context.copy_signal_message(bob_looping_message);
+ uint8[] looping_plaintext = alice_session_cipher.decrypt_signal_message(bob_looping_message_copy);
+ fail_if_not_eq_uint8_arr(looping_message, looping_plaintext);
+ }
+ GLib.Test.message("Interaction complete: Bob -> Alice (looping)");
+
+ /* Generate a shuffled list of encrypted messages for later use */
+ Holder[] alice_ooo_plaintext = new Holder[10];
+ Holder[] alice_ooo_ciphertext = new Holder[10];
+ for (int i = 0; i < 10; i++) {
+ alice_ooo_plaintext[i] = new Holder(create_looping_message(i));
+ alice_ooo_ciphertext[i] = new Holder(alice_session_cipher.encrypt(alice_ooo_plaintext[i].data).serialized);
+ }
+
+ for (int i = 0; i < 10; i++) {
+ uint32 s = Random.next_int() % 10;
+ Holder tmp = alice_ooo_plaintext[s];
+ alice_ooo_plaintext[s] = alice_ooo_plaintext[i];
+ alice_ooo_plaintext[i] = tmp;
+ tmp = alice_ooo_ciphertext[s];
+ alice_ooo_ciphertext[s] = alice_ooo_ciphertext[i];
+ alice_ooo_ciphertext[i] = tmp;
+ }
+ GLib.Test.message("Shuffled Alice->Bob messages created");
+
+ /* Looping Alice -> Bob (repeated) */
+ for (int i = 0; i < 10; i++) {
+ uint8[] looping_message = create_looping_message(i);
+ CiphertextMessage alice_looping_message = alice_session_cipher.encrypt(looping_message);
+ SignalMessage alice_looping_message_copy = global_context.copy_signal_message(alice_looping_message);
+ uint8[] looping_plaintext = bob_session_cipher.decrypt_signal_message(alice_looping_message_copy);
+ fail_if_not_eq_uint8_arr(looping_message, looping_plaintext);
+ }
+ GLib.Test.message("Interaction complete: Alice -> Bob (looping, repeated)");
+
+ /* Looping Bob -> Alice (repeated) */
+ for (int i = 0; i < 10; i++) {
+ uint8[] looping_message = create_looping_message(i);
+ CiphertextMessage bob_looping_message = bob_session_cipher.encrypt(looping_message);
+ SignalMessage bob_looping_message_copy = global_context.copy_signal_message(bob_looping_message);
+ uint8[] looping_plaintext = alice_session_cipher.decrypt_signal_message(bob_looping_message_copy);
+ fail_if_not_eq_uint8_arr(looping_message, looping_plaintext);
+ }
+ GLib.Test.message("Interaction complete: Bob -> Alice (looping, repeated)");
+
+ /* Shuffled Alice -> Bob */
+ for (int i = 0; i < 10; i++) {
+ SignalMessage ooo_message_deserialized = global_context.deserialize_signal_message(alice_ooo_ciphertext[i].data);
+ uint8[] ooo_plaintext = bob_session_cipher.decrypt_signal_message(ooo_message_deserialized);
+ fail_if_not_eq_uint8_arr(alice_ooo_plaintext[i].data, ooo_plaintext);
+ }
+ GLib.Test.message("Interaction complete: Alice -> Bob (shuffled)");
+ }
+
+ uint8[] create_looping_message(int index) {
+ return (@"You can only desire based on what you know: $index").data;
+ }
+
+ /*
+ uint8[] create_looping_message_short(int index) {
+ return ("What do we mean by saying that existence precedes essence? " +
+ "We mean that man first of all exists, encounters himself, " +
+ @"surges up in the world--and defines himself aftward. $index").data;
+ }
+ */
+}
+
+}
diff --git a/plugins/omemo/tests/signal/testcase.vala b/plugins/omemo/tests/signal/testcase.vala
new file mode 100644
index 00000000..59fcf193
--- /dev/null
+++ b/plugins/omemo/tests/signal/testcase.vala
@@ -0,0 +1,80 @@
+/* testcase.vala
+ *
+ * Copyright (C) 2009 Julien Peeters
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Author:
+ * Julien Peeters <contact@julienpeeters.fr>
+ */
+
+public abstract class Gee.TestCase : Object {
+
+ private GLib.TestSuite suite;
+ private Adaptor[] adaptors = new Adaptor[0];
+
+ public delegate void TestMethod ();
+
+ protected TestCase (string name) {
+ this.suite = new GLib.TestSuite (name);
+ }
+
+ public void add_test (string name, owned TestMethod test) {
+ var adaptor = new Adaptor (name, (owned)test, this);
+ this.adaptors += adaptor;
+
+ this.suite.add (new GLib.TestCase (adaptor.name,
+ adaptor.set_up,
+ adaptor.run,
+ adaptor.tear_down ));
+ }
+
+ public virtual void set_up () {
+ }
+
+ public virtual void tear_down () {
+ }
+
+ public GLib.TestSuite get_suite () {
+ return (owned) this.suite;
+ }
+
+ private class Adaptor {
+ [CCode (notify = false)]
+ public string name { get; private set; }
+ private TestMethod test;
+ private TestCase test_case;
+
+ public Adaptor (string name,
+ owned TestMethod test,
+ TestCase test_case) {
+ this.name = name;
+ this.test = (owned)test;
+ this.test_case = test_case;
+ }
+
+ public void set_up (void* fixture) {
+ this.test_case.set_up ();
+ }
+
+ public void run (void* fixture) {
+ this.test ();
+ }
+
+ public void tear_down (void* fixture) {
+ this.test_case.tear_down ();
+ }
+ }
+}
diff --git a/plugins/omemo/vapi/libsignal-protocol-c.vapi b/plugins/omemo/vapi/libsignal-protocol-c.vapi
new file mode 100644
index 00000000..7c63d418
--- /dev/null
+++ b/plugins/omemo/vapi/libsignal-protocol-c.vapi
@@ -0,0 +1,657 @@
+namespace Signal {
+
+ [CCode (cname = "int", cprefix = "SG_ERR_", cheader_filename = "signal/signal_protocol.h", has_type_id = false)]
+ public enum ErrorCode {
+ [CCode (cname = "SG_SUCCESS")]
+ SUCCESS,
+ NOMEM,
+ INVAL,
+ UNKNOWN,
+ DUPLICATE_MESSAGE,
+ INVALID_KEY,
+ INVALID_KEY_ID,
+ INVALID_MAC,
+ INVALID_MESSAGE,
+ INVALID_VERSION,
+ LEGACY_MESSAGE,
+ NO_SESSION,
+ STALE_KEY_EXCHANGE,
+ UNTRUSTED_IDENTITY,
+ VRF_SIG_VERIF_FAILED,
+ INVALID_PROTO_BUF,
+ FP_VERSION_MISMATCH,
+ FP_IDENT_MISMATCH;
+ }
+
+ [CCode (cname = "SG_ERR_MINIMUM", cheader_filename = "signal/signal_protocol.h")]
+ public const int MIN_ERROR_CODE;
+
+ [CCode (cname = "int", cprefix = "SG_LOG_", cheader_filename = "signal/signal_protocol.h", has_type_id = false)]
+ public enum LogLevel {
+ ERROR,
+ WARNING,
+ NOTICE,
+ INFO,
+ DEBUG
+ }
+
+ [CCode (cname = "signal_throw_gerror_by_code_", cheader_filename = "signal/signal_protocol.h")]
+ private int throw_by_code(int code, string? message = null) throws GLib.Error {
+ if (code < 0 && code > MIN_ERROR_CODE) {
+ throw new GLib.Error(-1, code, "%s: %s", message ?? "Signal error", ((ErrorCode)code).to_string());
+ }
+ return code;
+ }
+
+ [CCode (cname = "int", cprefix = "SG_CIPHER_", cheader_filename = "signal/signal_protocol.h", has_type_id = false)]
+ public enum Cipher {
+ AES_CTR_NOPADDING,
+ AES_CBC_PKCS5,
+ AES_GCM_NOPADDING
+ }
+
+ [Compact]
+ [CCode (cname = "signal_type_base", ref_function="signal_type_ref_vapi", unref_function="signal_type_unref_vapi", cheader_filename="signal/signal_protocol_types.h,signal/signal_helper.h")]
+ public class TypeBase {
+ }
+
+ [Compact]
+ [CCode (cname = "signal_buffer", cheader_filename = "signal/signal_protocol_types.h", free_function="signal_buffer_free")]
+ public class Buffer {
+ [CCode (cname = "signal_buffer_alloc")]
+ public Buffer(size_t len);
+ [CCode (cname = "signal_buffer_create")]
+ public Buffer.from(uint8[] data);
+
+ public Buffer copy();
+ public Buffer append(uint8[] data);
+ public int compare(Buffer other);
+
+ public uint8 get(int i) { return data[i]; }
+ public void set(int i, uint8 val) { data[i] = val; }
+
+ public uint8[] data { get { int x = (int)len(); unowned uint8[] res = _data(); res.length = x; return res; } }
+
+ [CCode (array_length = false, cname = "signal_buffer_data")]
+ private unowned uint8[] _data();
+ private size_t len();
+ }
+
+ [Compact]
+ [CCode (cname = "signal_int_list", cheader_filename = "signal/signal_protocol_types.h", free_function="signal_int_list_free")]
+ public class IntList {
+ [CCode (cname = "signal_int_list_alloc")]
+ public IntList();
+ [CCode (cname = "signal_int_list_push_back")]
+ public int add(int value);
+ public uint size { [CCode (cname = "signal_int_list_size")] get; }
+ [CCode (cname = "signal_int_list_at")]
+ public int get(uint index);
+ }
+
+ [Compact]
+ [CCode (cname = "session_builder", cprefix = "session_builder_", free_function="session_builder_free", cheader_filename = "signal/session_builder.h")]
+ public class SessionBuilder {
+ [CCode (cname = "session_builder_process_pre_key_bundle")]
+ private int process_pre_key_bundle_(PreKeyBundle pre_key_bundle);
+ [CCode (cname = "session_builder_process_pre_key_bundle_")]
+ public void process_pre_key_bundle(PreKeyBundle pre_key_bundle) throws GLib.Error {
+ throw_by_code(process_pre_key_bundle_(pre_key_bundle));
+ }
+ }
+
+ [Compact]
+ [CCode (cname = "session_pre_key_bundle", cprefix = "session_pre_key_bundle_", cheader_filename = "signal/session_pre_key.h")]
+ public class PreKeyBundle : TypeBase {
+ public static int create(out PreKeyBundle bundle, uint32 registration_id, int device_id, uint32 pre_key_id, ECPublicKey? pre_key_public,
+ uint32 signed_pre_key_id, ECPublicKey? signed_pre_key_public, uint8[]? signed_pre_key_signature, ECPublicKey? identity_key);
+ public uint32 registration_id { get; }
+ public int device_id { get; }
+ public uint32 pre_key_id { get; }
+ public ECPublicKey pre_key { owned get; }
+ public uint32 signed_pre_key_id { get; }
+ public ECPublicKey signed_pre_key { owned get; }
+ public Buffer signed_pre_key_signature { owned get; }
+ public ECPublicKey identity_key { owned get; }
+ }
+
+ [Compact]
+ [CCode (cname = "session_pre_key", cprefix = "session_pre_key_", cheader_filename = "signal/session_pre_key.h,signal/signal_helper.h")]
+ public class PreKeyRecord : TypeBase {
+ public static int create(out PreKeyRecord pre_key, uint32 id, ECKeyPair key_pair);
+ //public static int deserialize(out PreKeyRecord pre_key, uint8[] data, NativeContext global_context);
+ [CCode (instance_pos = 2)]
+ public int serialze(out Buffer buffer);
+ public uint32 id { get; }
+ public ECKeyPair key_pair { get; }
+ }
+
+ [Compact]
+ [CCode (cname = "session_record", cprefix = "session_record_", cheader_filename = "signal/signal_protocol_types.h")]
+ public class SessionRecord : TypeBase {
+ public SessionState state { get; }
+ public Buffer user_record { get; }
+ }
+
+ [Compact]
+ [CCode (cname = "session_state", cprefix = "session_state_", cheader_filename = "signal/session_state.h")]
+ public class SessionState : TypeBase {
+ //public static int create(out SessionState state, NativeContext context);
+ //public static int deserialize(out SessionState state, uint8[] data, NativeContext context);
+ //public static int copy(out SessionState state, SessionState other_state, NativeContext context);
+ [CCode (instance_pos = 2)]
+ public int serialze(out Buffer buffer);
+
+ public uint32 session_version { get; set; }
+ public ECPublicKey local_identity_key { get; set; }
+ public ECPublicKey remote_identity_key { get; set; }
+ //public Ratchet.RootKey root_key { get; set; }
+ public uint32 previous_counter { get; set; }
+ public ECPublicKey sender_ratchet_key { get; }
+ public ECKeyPair sender_ratchet_key_pair { get; }
+ //public Ratchet.ChainKey sender_chain_key { get; set; }
+ public uint32 remote_registration_id { get; set; }
+ public uint32 local_registration_id { get; set; }
+ public int needs_refresh { get; set; }
+ public ECPublicKey alice_base_key { get; set; }
+ }
+
+ [Compact]
+ [CCode (cname = "session_signed_pre_key", cprefix = "session_signed_pre_key_", cheader_filename = "signal/session_pre_key.h")]
+ public class SignedPreKeyRecord : TypeBase {
+ public static int create(out SignedPreKeyRecord pre_key, uint32 id, uint64 timestamp, ECKeyPair key_pair, uint8[] signature);
+ [CCode (instance_pos = 2)]
+ public int serialze(out Buffer buffer);
+
+ public uint32 id { get; }
+ public uint64 timestamp { get; }
+ public ECKeyPair key_pair { get; }
+ public uint8[] signature { [CCode (cname = "session_signed_pre_key_get_signature_")] get { int x = (int)get_signature_len(); unowned uint8[] res = get_signature(); res.length = x; return res; } }
+
+ [CCode (array_length = false, cname = "session_signed_pre_key_get_signature")]
+ private unowned uint8[] get_signature();
+ private size_t get_signature_len();
+ }
+
+ /**
+ * Address of an Signal Protocol message recipient
+ */
+ [Compact]
+ [CCode (cname = "signal_protocol_address", cprefix = "signal_protocol_address_", cheader_filename = "signal/signal_protocol.h,signal/signal_helper.h")]
+ public class Address {
+ public Address(string name, int32 device_id);
+ public int32 device_id { get; set; }
+ public string name { owned get; set; }
+ }
+
+ /**
+ * A representation of a (group + sender + device) tuple
+ */
+ [Compact]
+ [CCode (cname = "signal_protocol_sender_key_name")]
+ public class SenderKeyName {
+ [CCode (cname = "group_id", array_length_cname="group_id_len")]
+ private char* group_id_;
+ private size_t group_id_len;
+ public Address sender;
+ }
+
+ [Compact]
+ [CCode (cname = "ec_public_key", cprefix = "ec_public_key_", cheader_filename = "signal/curve.h,signal/signal_helper.h")]
+ public class ECPublicKey : TypeBase {
+ [CCode (cname = "curve_generate_public_key")]
+ public static int generate(out ECPublicKey public_key, ECPrivateKey private_key);
+ [CCode (instance_pos = 1, cname = "ec_public_key_serialize")]
+ private int serialize_([CCode (pos = 0)] out Buffer buffer);
+ [CCode (cname = "ec_public_key_serialize_")]
+ public uint8[] serialize() {
+ Buffer buffer;
+ int code = serialize_(out buffer);
+ if (code < 0 && code > MIN_ERROR_CODE) {
+ // Can only throw for invalid arguments or out of memory.
+ GLib.assert_not_reached();
+ }
+ return buffer.data;
+ }
+ public int compare(ECPublicKey other);
+ public int memcmp(ECPublicKey other);
+ }
+
+ [Compact]
+ [CCode (cname = "ec_private_key", cprefix = "ec_private_key_", cheader_filename = "signal/curve.h,signal/signal_helper.h")]
+ public class ECPrivateKey : TypeBase {
+ [CCode (instance_pos = 1, cname = "ec_private_key_serialize")]
+ private int serialize_([CCode (pos = 0)] out Buffer buffer);
+ [CCode (cname = "ec_private_key_serialize_")]
+ public uint8[] serialize() throws GLib.Error {
+ Buffer buffer;
+ int code = serialize_(out buffer);
+ if (code < 0 && code > MIN_ERROR_CODE) {
+ // Can only throw for invalid arguments or out of memory.
+ GLib.assert_not_reached();
+ }
+ return buffer.data;
+ }
+ public int compare(ECPublicKey other);
+ }
+
+ [Compact]
+ [CCode (cname = "ec_key_pair", cprefix="ec_key_pair_", cheader_filename = "signal/curve.h,signal/signal_helper.h")]
+ public class ECKeyPair : TypeBase {
+ public static int create(out ECKeyPair key_pair, ECPublicKey public_key, ECPrivateKey private_key);
+ public ECPublicKey public { get; }
+ public ECPrivateKey private { get; }
+ }
+
+ [CCode (cname = "ratchet_message_keys", cheader_filename = "signal/ratchet.h")]
+ public class MessageKeys {
+ }
+
+ [Compact]
+ [CCode (cname = "ratchet_identity_key_pair", cprefix = "ratchet_identity_key_pair_", cheader_filename = "signal/ratchet.h,signal/signal_helper.h")]
+ public class IdentityKeyPair : TypeBase {
+ public static int create(out IdentityKeyPair key_pair, ECPublicKey public_key, ECPrivateKey private_key);
+ public int serialze(out Buffer buffer);
+ public ECPublicKey public { get; }
+ public ECPrivateKey private { get; }
+ }
+
+ [Compact]
+ [CCode (cname = "ec_public_key_list")]
+ public class PublicKeyList {}
+
+ /**
+ * The main entry point for Signal Protocol encrypt/decrypt operations.
+ *
+ * Once a session has been established with session_builder,
+ * this class can be used for all encrypt/decrypt operations within
+ * that session.
+ */
+ [Compact]
+ [CCode (cname = "session_cipher", cprefix = "session_cipher_", cheader_filename = "signal/session_cipher.h", free_function = "session_cipher_free")]
+ public class SessionCipher {
+ public void* user_data { get; set; }
+ public DecryptionCallback decryption_callback { set; }
+ [CCode (cname = "session_cipher_encrypt")]
+ private int encrypt_(uint8[] padded_message, out CiphertextMessage encrypted_message);
+ [CCode (cname = "session_cipher_encrypt_")]
+ public CiphertextMessage encrypt(uint8[] padded_message) throws GLib.Error {
+ CiphertextMessage res;
+ throw_by_code(encrypt_(padded_message, out res));
+ return res;
+ }
+ [CCode (cname = "session_cipher_decrypt_pre_key_signal_message")]
+ private int decrypt_pre_key_signal_message_(PreKeySignalMessage ciphertext, void* decrypt_context, out Buffer plaintext);
+ [CCode (cname = "session_cipher_decrypt_pre_key_signal_message_")]
+ public uint8[] decrypt_pre_key_signal_message(PreKeySignalMessage ciphertext, void* decrypt_context = null) throws GLib.Error {
+ Buffer res;
+ throw_by_code(decrypt_pre_key_signal_message_(ciphertext, decrypt_context, out res));
+ return res.data;
+ }
+ [CCode (cname = "session_cipher_decrypt_signal_message")]
+ private int decrypt_signal_message_(SignalMessage ciphertext, void* decrypt_context, out Buffer plaintext);
+ [CCode (cname = "session_cipher_decrypt_signal_message_")]
+ public uint8[] decrypt_signal_message(SignalMessage ciphertext, void* decrypt_context = null) throws GLib.Error {
+ Buffer res;
+ throw_by_code(decrypt_signal_message_(ciphertext, decrypt_context, out res));
+ return res.data;
+ }
+ public int get_remote_registration_id(out uint32 remote_id);
+ public int get_session_version(uint32 version);
+
+ [CCode (has_target = false)]
+ public delegate int DecryptionCallback(SessionCipher cipher, Buffer plaintext, void* decrypt_context);
+ }
+
+ [CCode (cname = "int", cheader_filename = "signal/protocol.h", has_type_id = false)]
+ public enum CiphertextType {
+ [CCode (cname = "CIPHERTEXT_SIGNAL_TYPE")]
+ SIGNAL,
+ [CCode (cname = "CIPHERTEXT_PREKEY_TYPE")]
+ PREKEY,
+ [CCode (cname = "CIPHERTEXT_SENDERKEY_TYPE")]
+ SENDERKEY,
+ [CCode (cname = "CIPHERTEXT_SENDERKEY_DISTRIBUTION_TYPE")]
+ SENDERKEY_DISTRIBUTION
+ }
+
+ [Compact]
+ [CCode (cname = "ciphertext_message", cprefix = "ciphertext_message_", cheader_filename = "signal/protocol.h,signal/signal_helper.h")]
+ public abstract class CiphertextMessage : TypeBase {
+ public CiphertextType type { get; }
+ [CCode (cname = "ciphertext_message_get_serialized")]
+ private unowned Buffer get_serialized_();
+ public uint8[] serialized { [CCode (cname = "ciphertext_message_get_serialized_")] get {
+ return get_serialized_().data;
+ }}
+ }
+ [Compact]
+ [CCode (cname = "signal_message", cprefix = "signal_message_", cheader_filename = "signal/protocol.h,signal/signal_helper.h")]
+ public class SignalMessage : CiphertextMessage {
+ public ECPublicKey sender_ratchet_key { get; }
+ public uint8 message_version { get; }
+ public uint32 counter { get; }
+ public Buffer body { get; }
+ //public int verify_mac(uint8 message_version, ECPublicKey sender_identity_key, ECPublicKey receiver_identity_key, uint8[] mac, NativeContext global_context);
+ public static int is_legacy(uint8[] data);
+ }
+ [Compact]
+ [CCode (cname = "pre_key_signal_message", cprefix = "pre_key_signal_message_", cheader_filename = "signal/protocol.h,signal/signal_helper.h")]
+ public class PreKeySignalMessage : CiphertextMessage {
+ public uint8 message_version { get; }
+ public ECPublicKey identity_key { get; }
+ public uint32 registration_id { get; }
+ public uint32 pre_key_id { get; }
+ public uint32 signed_pre_key_id { get; }
+ public ECPublicKey base_key { get; }
+ public SignalMessage signal_message { get; }
+ }
+ [Compact]
+ [CCode (cname = "sender_key_message", cprefix = "sender_key_message_", cheader_filename = "signal/protocol.h,signal/signal_helper.h")]
+ public class SenderKeyMessage : CiphertextMessage {
+ public uint32 key_id { get; }
+ public uint32 iteration { get; }
+ public Buffer ciphertext { get; }
+ }
+ [Compact]
+ [CCode (cname = "sender_key_distribution_message", cprefix = "sender_key_distribution_message_", cheader_filename = "signal/protocol.h,signal/signal_helper.h")]
+ public class SenderKeyDistributionMessage : CiphertextMessage {
+ public uint32 id { get; }
+ public uint32 iteration { get; }
+ public Buffer chain_key { get; }
+ public ECPublicKey signature_key { get; }
+ }
+
+ [CCode (cname = "signal_vala_encrypt", cheader_filename = "signal/signal_helper.h")]
+ private static int aes_encrypt_(out Buffer output, int cipher, uint8[] key, uint8[] iv, uint8[] plaintext, void *user_data);
+
+ [CCode (cname = "signal_vala_encrypt_")]
+ public uint8[] aes_encrypt(int cipher, uint8[] key, uint8[] iv, uint8[] plaintext) throws GLib.Error {
+ Buffer buf;
+ throw_by_code(aes_encrypt_(out buf, cipher, key, iv, plaintext, null));
+ return buf.data;
+ }
+
+ [CCode (cname = "signal_vala_decrypt", cheader_filename = "signal/signal_helper.h")]
+ private static int aes_decrypt_(out Buffer output, int cipher, uint8[] key, uint8[] iv, uint8[] ciphertext, void *user_data);
+
+ [CCode (cname = "signal_vala_decrypt_")]
+ public uint8[] aes_decrypt(int cipher, uint8[] key, uint8[] iv, uint8[] ciphertext) throws GLib.Error {
+ Buffer buf;
+ throw_by_code(aes_decrypt_(out buf, cipher, key, iv, ciphertext, null));
+ return buf.data;
+ }
+
+ [Compact]
+ [CCode (cname = "signal_context", cprefix="signal_context_", free_function="signal_context_destroy", cheader_filename = "signal/signal_protocol.h")]
+ public class NativeContext {
+ public static int create(out NativeContext context, void* user_data);
+ public int set_crypto_provider(NativeCryptoProvider crypto_provider);
+ public int set_locking_functions(LockingFunc lock, LockingFunc unlock);
+ public int set_log_function(LogFunc log);
+ }
+ [CCode (has_target = false)]
+ public delegate void LockingFunc(void* user_data);
+ [CCode (has_target = false)]
+ public delegate void LogFunc(LogLevel level, string message, size_t len, void* user_data);
+
+ [Compact]
+ [CCode (cname = "signal_crypto_provider", cheader_filename = "signal/signal_protocol.h")]
+ public struct NativeCryptoProvider {
+ public RandomFunc random_func;
+ public HmacSha256Init hmac_sha256_init_func;
+ public HmacSha256Update hmac_sha256_update_func;
+ public HmacSha256Final hmac_sha256_final_func;
+ public HmacSha256Cleanup hmac_sha256_cleanup_func;
+ public Sha512DigestInit sha512_digest_init_func;
+ public Sha512DigestUpdate sha512_digest_update_func;
+ public Sha512DigestFinal sha512_digest_final_func;
+ public Sha512DigestCleanup sha512_digest_cleanup_func;
+ public CryptFunc encrypt_func;
+ public CryptFunc decrypt_func;
+ public void* user_data;
+ }
+ [CCode (has_target = false)]
+ public delegate int RandomFunc(uint8[] data, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int HmacSha256Init(out void* hmac_context, uint8[] key, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int HmacSha256Update(void* hmac_context, uint8[] data, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int HmacSha256Final(void* hmac_context, out Buffer buffer, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int HmacSha256Cleanup(void* hmac_context, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int Sha512DigestInit(out void* digest_context, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int Sha512DigestUpdate(void* digest_context, uint8[] data, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int Sha512DigestFinal(void* digest_context, out Buffer buffer, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int Sha512DigestCleanup(void* digest_context, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int CryptFunc(out Buffer output, Cipher cipher, uint8[] key, uint8[] iv, uint8[] content, void* user_data);
+
+ [Compact]
+ [CCode (cname = "signal_protocol_session_store", cheader_filename = "signal/signal_protocol.h")]
+ public struct NativeSessionStore {
+ public LoadSessionFunc load_session_func;
+ public GetSubDeviceSessionsFunc get_sub_device_sessions_func;
+ public StoreSessionFunc store_session_func;
+ public ContainsSessionFunc contains_session_func;
+ public DeleteSessionFunc delete_session_func;
+ public DeleteAllSessionsFunc delete_all_sessions_func;
+ public DestroyFunc destroy_func;
+ public void* user_data;
+ }
+ [CCode (has_target = false)]
+ public delegate int LoadSessionFunc(out Buffer record, out Buffer user_record, Address address, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int GetSubDeviceSessionsFunc(out IntList sessions, [CCode (array_length_type = "size_t")] char[] name, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int StoreSessionFunc(Address address, [CCode (array_length_type = "size_t")] uint8[] record, [CCode (array_length_type = "size_t")] uint8[] user_record, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int ContainsSessionFunc(Address address, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int DeleteSessionFunc(Address address, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int DeleteAllSessionsFunc([CCode (array_length_type = "size_t")] char[] name, void* user_data);
+
+ [Compact]
+ [CCode (cname = "signal_protocol_identity_key_store", cheader_filename = "signal/signal_protocol.h")]
+ public struct NativeIdentityKeyStore {
+ GetIdentityKeyPairFunc get_identity_key_pair;
+ GetLocalRegistrationIdFunc get_local_registration_id;
+ SaveIdentityFunc save_identity;
+ IsTrustedIdentityFunc is_trusted_identity;
+ DestroyFunc destroy_func;
+ void* user_data;
+ }
+ [CCode (has_target = false)]
+ public delegate int GetIdentityKeyPairFunc(out Buffer public_data, out Buffer private_data, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int GetLocalRegistrationIdFunc(void* user_data, out uint32 registration_id);
+ [CCode (has_target = false)]
+ public delegate int SaveIdentityFunc(Address address, [CCode (array_length_type = "size_t")] uint8[] key, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int IsTrustedIdentityFunc(Address address, [CCode (array_length_type = "size_t")] uint8[] key, void* user_data);
+
+ [Compact]
+ [CCode (cname = "signal_protocol_pre_key_store", cheader_filename = "signal/signal_protocol.h")]
+ public struct NativePreKeyStore {
+ LoadPreKeyFunc load_pre_key;
+ StorePreKeyFunc store_pre_key;
+ ContainsPreKeyFunc contains_pre_key;
+ RemovePreKeyFunc remove_pre_key;
+ DestroyFunc destroy_func;
+ void* user_data;
+ }
+ [CCode (has_target = false)]
+ public delegate int LoadPreKeyFunc(out Buffer record, uint32 pre_key_id, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int StorePreKeyFunc(uint32 pre_key_id, [CCode (array_length_type = "size_t")] uint8[] record, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int ContainsPreKeyFunc(uint32 pre_key_id, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int RemovePreKeyFunc(uint32 pre_key_id, void* user_data);
+
+
+ [Compact]
+ [CCode (cname = "signal_protocol_signed_pre_key_store", cheader_filename = "signal/signal_protocol.h")]
+ public struct NativeSignedPreKeyStore {
+ LoadPreKeyFunc load_signed_pre_key;
+ StorePreKeyFunc store_signed_pre_key;
+ ContainsPreKeyFunc contains_signed_pre_key;
+ RemovePreKeyFunc remove_signed_pre_key;
+ DestroyFunc destroy_func;
+ void* user_data;
+ }
+
+
+ [Compact]
+ [CCode (cname = "signal_protocol_sender_key_store")]
+ public struct NativeSenderKeyStore {
+ StoreSenderKeyFunc store_sender_key;
+ LoadSenderKeyFunc load_sender_key;
+ DestroyFunc destroy_func;
+ void* user_data;
+ }
+ [CCode (has_target = false)]
+ public delegate int StoreSenderKeyFunc(SenderKeyName sender_key_name, [CCode (array_length_type = "size_t")] uint8[] record, [CCode (array_length_type = "size_t")] uint8[] user_record, void* user_data);
+ [CCode (has_target = false)]
+ public delegate int LoadSenderKeyFunc(out Buffer record, out Buffer user_record, SenderKeyName sender_key_name, void* user_data);
+
+ [CCode (has_target = false)]
+ public delegate void DestroyFunc(void* user_data);
+
+ [Compact]
+ [CCode (cname = "signal_protocol_store_context", cprefix = "signal_protocol_store_context_", free_function="signal_protocol_store_context_destroy", cheader_filename = "signal/signal_protocol.h")]
+ public class NativeStoreContext {
+ public static int create(out NativeStoreContext context, NativeContext global_context);
+ public int set_session_store(NativeSessionStore store);
+ public int set_pre_key_store(NativePreKeyStore store);
+ public int set_signed_pre_key_store(NativeSignedPreKeyStore store);
+ public int set_identity_key_store(NativeIdentityKeyStore store);
+ public int set_sender_key_store(NativeSenderKeyStore store);
+ }
+
+
+ [CCode (cheader_filename = "signal/signal_protocol.h")]
+ namespace Protocol {
+
+ /**
+ * Interface to the pre-key store.
+ * These functions will use the callbacks in the provided
+ * signal_protocol_store_context instance and operate in terms of higher level
+ * library data structures.
+ */
+ [CCode (cprefix = "signal_protocol_pre_key_")]
+ namespace PreKey {
+ public int load_key(NativeStoreContext context, out PreKeyRecord pre_key, uint32 pre_key_id);
+ public int store_key(NativeStoreContext context, PreKeyRecord pre_key);
+ public int contains_key(NativeStoreContext context, uint32 pre_key_id);
+ public int remove_key(NativeStoreContext context, uint32 pre_key_id);
+ }
+
+ [CCode (cprefix = "signal_protocol_signed_pre_key_")]
+ namespace SignedPreKey {
+ public int load_key(NativeStoreContext context, out SignedPreKeyRecord pre_key, uint32 pre_key_id);
+ public int store_key(NativeStoreContext context, SignedPreKeyRecord pre_key);
+ public int contains_key(NativeStoreContext context, uint32 pre_key_id);
+ public int remove_key(NativeStoreContext context, uint32 pre_key_id);
+ }
+
+ /**
+ * Interface to the session store.
+ * These functions will use the callbacks in the provided
+ * signal_protocol_store_context instance and operate in terms of higher level
+ * library data structures.
+ */
+ [CCode (cprefix = "signal_protocol_session_")]
+ namespace Session {
+ public int load_session(NativeStoreContext context, out SessionRecord record, Address address);
+ public int get_sub_device_sessions(NativeStoreContext context, out IntList sessions, char[] name);
+ public int store_session(NativeStoreContext context, Address address, SessionRecord record);
+ public int contains_session(NativeStoreContext context, Address address);
+ public int delete_session(NativeStoreContext context, Address address);
+ public int delete_all_sessions(NativeStoreContext context, char[] name);
+ }
+
+ namespace Identity {
+ public int get_key_pair(NativeStoreContext store_context, out IdentityKeyPair key_pair);
+ public int get_local_registration_id(NativeStoreContext store_context, out uint32 registration_id);
+ public int save_identity(NativeStoreContext store_context, Address address, ECPublicKey identity_key);
+ public int is_trusted_identity(NativeStoreContext store_context, Address address, ECPublicKey identity_key);
+ }
+
+ [CCode (cheader_filename = "signal/key_helper.h", cprefix = "signal_protocol_key_helper_")]
+ namespace KeyHelper {
+ [Compact]
+ [CCode (cname = "signal_protocol_key_helper_pre_key_list_node", cprefix = "signal_protocol_key_helper_key_list_", free_function="signal_protocol_key_helper_key_list_free")]
+ public class PreKeyListNode {
+ public PreKeyRecord element();
+ public PreKeyListNode next();
+ }
+
+ public int generate_identity_key_pair(out IdentityKeyPair key_pair, NativeContext global_context);
+ public int generate_registration_id(out int32 registration_id, int extended_range, NativeContext global_context);
+ public int get_random_sequence(out int value, int max, NativeContext global_context);
+ public int generate_pre_keys(out PreKeyListNode head, uint start, uint count, NativeContext global_context);
+ public int generate_last_resort_pre_key(out PreKeyRecord pre_key, NativeContext global_context);
+ public int generate_signed_pre_key(out SignedPreKeyRecord signed_pre_key, IdentityKeyPair identity_key_pair, uint32 signed_pre_key_id, uint64 timestamp, NativeContext global_context);
+ public int generate_sender_signing_key(out ECKeyPair key_pair, NativeContext global_context);
+ public int generate_sender_key(out Buffer key_buffer, NativeContext global_context);
+ public int generate_sender_key_id(out int32 key_id, NativeContext global_context);
+ }
+ }
+
+ [CCode (cheader_filename = "signal/curve.h")]
+ namespace Curve {
+ [CCode (cname = "curve_calculate_agreement")]
+ public int calculate_agreement([CCode (array_length = false)] out uint8[] shared_key_data, ECPublicKey public_key, ECPrivateKey private_key);
+ [CCode (cname = "curve_calculate_signature")]
+ public int calculate_signature(NativeContext context, out Buffer signature, ECPrivateKey signing_key, uint8[] message);
+ [CCode (cname = "curve_verify_signature")]
+ public int verify_signature(ECPublicKey signing_key, uint8[] message, uint8[] signature);
+ }
+
+ [CCode (cname = "session_builder_create", cheader_filename = "signal/session_builder.h")]
+ public static int session_builder_create(out SessionBuilder builder, NativeStoreContext store, Address remote_address, NativeContext global_context);
+ [CCode (cname = "session_cipher_create", cheader_filename = "signal/session_cipher.h")]
+ public static int session_cipher_create(out SessionCipher cipher, NativeStoreContext store, Address remote_address, NativeContext global_context);
+ [CCode (cname = "pre_key_signal_message_deserialize", cheader_filename = "signal/protocol.h")]
+ public static int pre_key_signal_message_deserialize(out PreKeySignalMessage message, uint8[] data, NativeContext global_context);
+ [CCode (cname = "pre_key_signal_message_copy", cheader_filename = "signal/protocol.h")]
+ public static int pre_key_signal_message_copy(out PreKeySignalMessage message, PreKeySignalMessage other_message, NativeContext global_context);
+ [CCode (cname = "signal_message_create", cheader_filename = "signal/protocol.h")]
+ public static int signal_message_create(out SignalMessage message, uint8 message_version, uint8[] mac_key, ECPublicKey sender_ratchet_key, uint32 counter, uint32 previous_counter, uint8[] ciphertext, ECPublicKey sender_identity_key, ECPublicKey receiver_identity_key, NativeContext global_context);
+ [CCode (cname = "signal_message_deserialize", cheader_filename = "signal/protocol.h")]
+ public static int signal_message_deserialize(out SignalMessage message, uint8[] data, NativeContext global_context);
+ [CCode (cname = "signal_message_copy", cheader_filename = "signal/protocol.h")]
+ public static int signal_message_copy(out SignalMessage message, SignalMessage other_message, NativeContext global_context);
+ [CCode (cname = "curve_generate_key_pair", cheader_filename = "signal/curve.h")]
+ public static int curve_generate_key_pair(NativeContext context, out ECKeyPair key_pair);
+ [CCode (cname = "curve_decode_private_point", cheader_filename = "signal/curve.h")]
+ public static int curve_decode_private_point(out ECPrivateKey public_key, uint8[] key, NativeContext global_context);
+ [CCode (cname = "curve_decode_point", cheader_filename = "signal/curve.h")]
+ public static int curve_decode_point(out ECPublicKey public_key, uint8[] key, NativeContext global_context);
+ [CCode (cname = "curve_generate_private_key", cheader_filename = "signal/curve.h")]
+ public static int curve_generate_private_key(NativeContext context, out ECPrivateKey private_key);
+ [CCode (cname = "ratchet_identity_key_pair_deserialize", cheader_filename = "signal/ratchet.h")]
+ public static int ratchet_identity_key_pair_deserialize(out IdentityKeyPair key_pair, uint8[] data, NativeContext global_context);
+ [CCode (cname = "session_signed_pre_key_deserialize", cheader_filename = "signal/signed_pre_key.h")]
+ public static int session_signed_pre_key_deserialize(out SignedPreKeyRecord pre_key, uint8[] data, NativeContext global_context);
+
+ [Compact]
+ [CCode (cname = "hkdf_context", cprefix = "hkdf_", free_function = "hkdf_destroy", cheader_filename = "signal/hkdf.h")]
+ public class NativeHkdfContext {
+ public static int create(out NativeHkdfContext context, int message_version, NativeContext global_context);
+ public int compare(NativeHkdfContext other);
+ public ssize_t derive_secrets([CCode (array_length = false)] out uint8[] output, uint8[] input_key_material, uint8[] salt, uint8[] info, size_t output_len);
+ }
+
+ [CCode (cname = "setup_signal_vala_crypto_provider", cheader_filename = "signal/signal_helper.h")]
+ public static void setup_crypto_provider(NativeContext context);
+ [CCode (cname = "signal_vala_randomize", cheader_filename = "signal/signal_helper.h")]
+ public static int native_random(uint8[] data);
+}