aboutsummaryrefslogtreecommitdiff
path: root/plugins/signal-protocol/src/util.vala
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/signal-protocol/src/util.vala')
-rw-r--r--plugins/signal-protocol/src/util.vala45
1 files changed, 45 insertions, 0 deletions
diff --git a/plugins/signal-protocol/src/util.vala b/plugins/signal-protocol/src/util.vala
new file mode 100644
index 00000000..4c0ae72d
--- /dev/null
+++ b/plugins/signal-protocol/src/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