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@@ -12,13 +12,11 @@ namespace Shadowsocks.Encrypt |
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{
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const int CIPHER_AES = 1;
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const int CIPHER_RC4 = 2;
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const int CIPHER_BF = 3;
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static Dictionary<string, int[]> ciphers = new Dictionary<string, int[]> {
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{"aes-128-cfb", new int[]{16, 16, CIPHER_AES, PolarSSL.AES_CTX_SIZE}},
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{"aes-192-cfb", new int[]{24, 16, CIPHER_AES, PolarSSL.AES_CTX_SIZE}},
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{"aes-256-cfb", new int[]{32, 16, CIPHER_AES, PolarSSL.AES_CTX_SIZE}},
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{"bf-cfb", new int[]{16, 8, CIPHER_BF, PolarSSL.BLOWFISH_CTX_SIZE}},
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{"rc4", new int[]{16, 0, CIPHER_RC4, PolarSSL.ARC4_CTX_SIZE}},
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{"rc4-md5", new int[]{16, 16, CIPHER_RC4, PolarSSL.ARC4_CTX_SIZE}},
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};
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@@ -133,22 +131,6 @@ namespace Shadowsocks.Encrypt |
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Array.Copy(iv, _decryptIV, ivLen);
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}
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}
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else if (_cipher == CIPHER_BF)
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{
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PolarSSL.blowfish_init(ctx);
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// PolarSSL takes key length by bit
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PolarSSL.blowfish_setkey(ctx, realkey, keyLen * 8);
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if (isCipher)
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{
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_encryptIV = new byte[ivLen];
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Array.Copy(iv, _encryptIV, ivLen);
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}
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else
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{
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_decryptIV = new byte[ivLen];
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Array.Copy(iv, _decryptIV, ivLen);
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}
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}
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else if (_cipher == CIPHER_RC4)
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{
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PolarSSL.arc4_init(ctx);
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@@ -180,9 +162,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_crypt_cfb128(_encryptCtx, PolarSSL.AES_ENCRYPT, length, ref _encryptIVOffset, _encryptIV, buf, tempbuf);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_crypt_cfb64(_encryptCtx, PolarSSL.BLOWFISH_ENCRYPT, length, ref _encryptIVOffset, _encryptIV, buf, tempbuf);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_crypt(_encryptCtx, length, buf, tempbuf);
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break;
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@@ -204,9 +183,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_crypt_cfb128(_encryptCtx, PolarSSL.AES_ENCRYPT, length, ref _encryptIVOffset, _encryptIV, buf, outbuf);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_crypt_cfb64(_encryptCtx, PolarSSL.BLOWFISH_ENCRYPT, length, ref _encryptIVOffset, _encryptIV, buf, outbuf);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_crypt(_encryptCtx, length, buf, outbuf);
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break;
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@@ -233,9 +209,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_crypt_cfb128(_decryptCtx, PolarSSL.AES_DECRYPT, length - ivLen, ref _decryptIVOffset, _decryptIV, tempbuf, outbuf);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_crypt_cfb64(_decryptCtx, PolarSSL.BLOWFISH_DECRYPT, length - ivLen, ref _decryptIVOffset, _decryptIV, tempbuf, outbuf);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_crypt(_decryptCtx, length - ivLen, tempbuf, outbuf);
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break;
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@@ -254,9 +227,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_crypt_cfb128(_decryptCtx, PolarSSL.AES_DECRYPT, length, ref _decryptIVOffset, _decryptIV, buf, outbuf);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_crypt_cfb64(_decryptCtx, PolarSSL.BLOWFISH_DECRYPT, length, ref _decryptIVOffset, _decryptIV, buf, outbuf);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_crypt(_decryptCtx, length, buf, outbuf);
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break;
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@@ -298,9 +268,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_free(_encryptCtx);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_free(_encryptCtx);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_free(_encryptCtx);
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break;
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@@ -315,9 +282,6 @@ namespace Shadowsocks.Encrypt |
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case CIPHER_AES:
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PolarSSL.aes_free(_decryptCtx);
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break;
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case CIPHER_BF:
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PolarSSL.blowfish_free(_decryptCtx);
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break;
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case CIPHER_RC4:
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PolarSSL.arc4_free(_decryptCtx);
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break;
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