From 6399892bf2c53fc3701438c752718638baff8e27 Mon Sep 17 00:00:00 2001 From: Marvin W Date: Fri, 14 May 2021 19:26:05 +0200 Subject: Move crypto-vala to shared library --- plugins/crypto-vala/src/cipher.vala | 152 ------------------------------------ 1 file changed, 152 deletions(-) delete mode 100644 plugins/crypto-vala/src/cipher.vala (limited to 'plugins/crypto-vala/src/cipher.vala') diff --git a/plugins/crypto-vala/src/cipher.vala b/plugins/crypto-vala/src/cipher.vala deleted file mode 100644 index 306dafa8..00000000 --- a/plugins/crypto-vala/src/cipher.vala +++ /dev/null @@ -1,152 +0,0 @@ -namespace Crypto { -public class SymmetricCipher { - private GCrypt.Cipher.Cipher cipher; - - public static bool supports(string algo_name) { - GCrypt.Cipher.Algorithm algo; - GCrypt.Cipher.Mode mode; - GCrypt.Cipher.Flag flags; - return parse(algo_name, out algo, out mode, out flags); - } - - private static unowned string mode_to_string(GCrypt.Cipher.Mode mode) { - switch (mode) { - case GCrypt.Cipher.Mode.ECB: return "ECB"; - case GCrypt.Cipher.Mode.CFB: return "CFB"; - case GCrypt.Cipher.Mode.CBC: return "CBC"; - case GCrypt.Cipher.Mode.STREAM: return "STREAM"; - case GCrypt.Cipher.Mode.OFB: return "OFB"; - case GCrypt.Cipher.Mode.CTR: return "CTR"; - case GCrypt.Cipher.Mode.AESWRAP: return "AESWRAP"; - case GCrypt.Cipher.Mode.GCM: return "GCM"; - case GCrypt.Cipher.Mode.POLY1305: return "POLY1305"; - case GCrypt.Cipher.Mode.OCB: return "OCB"; - case GCrypt.Cipher.Mode.CFB8: return "CFB8"; - // case GCrypt.Cipher.Mode.XTS: return "XTS"; // Not supported in gcrypt < 1.8 - } - return "NONE"; - } - - private static GCrypt.Cipher.Mode mode_from_string(string name) { - switch (name) { - case "ECB": return GCrypt.Cipher.Mode.ECB; - case "CFB": return GCrypt.Cipher.Mode.CFB; - case "CBC": return GCrypt.Cipher.Mode.CBC; - case "STREAM": return GCrypt.Cipher.Mode.STREAM; - case "OFB": return GCrypt.Cipher.Mode.OFB; - case "CTR": return GCrypt.Cipher.Mode.CTR; - case "AESWRAP": return GCrypt.Cipher.Mode.AESWRAP; - case "GCM": return GCrypt.Cipher.Mode.GCM; - case "POLY1305": return GCrypt.Cipher.Mode.POLY1305; - case "OCB": return GCrypt.Cipher.Mode.OCB; - case "CFB8": return GCrypt.Cipher.Mode.CFB8; - // case "XTS": return GCrypt.Cipher.Mode.XTS; // Not supported in gcrypt < 1.8 - } - return GCrypt.Cipher.Mode.NONE; - } - - private static string flags_to_string(GCrypt.Cipher.Flag flags) { - string? s = null; - if ((GCrypt.Cipher.Flag.CBC_MAC & flags) != 0) s = (s == null ? "" : @"$s-") + "MAC"; - if ((GCrypt.Cipher.Flag.CBC_CTS & flags) != 0) s = (s == null ? "" : @"$s-") + "CTS"; - if ((GCrypt.Cipher.Flag.ENABLE_SYNC & flags) != 0) s = (s == null ? "" : @"$s-") + "SYNC"; - if ((GCrypt.Cipher.Flag.SECURE & flags) != 0) s = (s == null ? "" : @"$s-") + "SECURE"; - return s ?? "NONE"; - } - - private static GCrypt.Cipher.Flag flag_from_string(string flag_name) { - if (flag_name == "SECURE") return GCrypt.Cipher.Flag.SECURE; - if (flag_name == "SYNC") return GCrypt.Cipher.Flag.ENABLE_SYNC; - if (flag_name == "CTS") return GCrypt.Cipher.Flag.CBC_CTS; - if (flag_name == "MAC") return GCrypt.Cipher.Flag.CBC_MAC; - return 0; - } - - private static GCrypt.Cipher.Flag flags_from_string(string flag_names) { - GCrypt.Cipher.Flag flags = 0; - foreach(string flag in flag_names.split("-")) { - flags |= flag_from_string(flag); - } - return flags; - } - - private static bool parse(string algo_name, out GCrypt.Cipher.Algorithm algo, out GCrypt.Cipher.Mode mode, out GCrypt.Cipher.Flag flags) { - algo = GCrypt.Cipher.Algorithm.NONE; - mode = GCrypt.Cipher.Mode.NONE; - flags = 0; - string[] algo_parts = algo_name.split("-", 3); - - algo = GCrypt.Cipher.Algorithm.from_string(algo_parts[0]); - if (algo_parts.length >= 2) { - mode = mode_from_string(algo_parts[1]); - } - if (algo_parts.length == 3) { - flags |= flags_from_string(algo_parts[2]); - } - return to_algo_name(algo, mode, flags) == algo_name; - } - - private static string to_algo_name(GCrypt.Cipher.Algorithm algo = GCrypt.Cipher.Algorithm.NONE, GCrypt.Cipher.Mode mode = GCrypt.Cipher.Mode.NONE, GCrypt.Cipher.Flag flags = 0) { - if (flags != 0) { - return @"$algo-$(mode_to_string(mode))-$(flags_to_string(flags))"; - } else if (mode != GCrypt.Cipher.Mode.NONE) { - return @"$algo-$(mode_to_string(mode))"; - } else { - return algo.to_string(); - } - } - - public SymmetricCipher(string algo_name) throws Error { - GCrypt.Cipher.Algorithm algo; - GCrypt.Cipher.Mode mode; - GCrypt.Cipher.Flag flags; - if (parse(algo_name, out algo, out mode, out flags)) { - this.gcrypt(algo, mode, flags); - } else { - throw new Error.ILLEGAL_ARGUMENTS(@"The algorithm $algo_name is not supported"); - } - } - - private SymmetricCipher.gcrypt(GCrypt.Cipher.Algorithm algo, GCrypt.Cipher.Mode mode, GCrypt.Cipher.Flag flags) throws Error { - may_throw_gcrypt_error(GCrypt.Cipher.Cipher.open(out this.cipher, algo, mode, flags)); - } - - public void set_key(uint8[] key) throws Error { - may_throw_gcrypt_error(cipher.set_key(key)); - } - - public void set_iv(uint8[] iv) throws Error { - may_throw_gcrypt_error(cipher.set_iv(iv)); - } - - public void set_counter_vector(uint8[] ctr) throws Error { - may_throw_gcrypt_error(cipher.set_counter_vector(ctr)); - } - - public void reset() throws Error { - may_throw_gcrypt_error(cipher.reset()); - } - - public uint8[] get_tag(size_t taglen) throws Error { - uint8[] tag = new uint8[taglen]; - may_throw_gcrypt_error(cipher.get_tag(tag)); - return tag; - } - - public void check_tag(uint8[] tag) throws Error { - may_throw_gcrypt_error(cipher.check_tag(tag)); - } - - public void encrypt(uint8[] output, uint8[] input) throws Error { - may_throw_gcrypt_error(cipher.encrypt(output, input)); - } - - public void decrypt(uint8[] output, uint8[] input) throws Error { - may_throw_gcrypt_error(cipher.decrypt(output, input)); - } - - public void sync() throws Error { - may_throw_gcrypt_error(cipher.sync()); - } -} -} -- cgit v1.2.3-54-g00ecf