public FrameCodec(EncryptionHandshake.Secrets secrets) { this.mac = secrets.mac; BlockCipher cipher; enc = new SICBlockCipher(cipher = new AESEngine()); enc.init(true, new ParametersWithIV(new KeyParameter(secrets.aes), new byte[cipher.getBlockSize()])); dec = new SICBlockCipher(cipher = new AESEngine()); dec.init(false, new ParametersWithIV(new KeyParameter(secrets.aes), new byte[cipher.getBlockSize()])); egressMac = secrets.egressMac; ingressMac = secrets.ingressMac; }
private byte[] updateMac(KeccakDigest mac, byte[] seed, int offset, byte[] out, int outOffset, boolean egress) throws IOException { byte[] aesBlock = new byte[mac.getDigestSize()]; doSum(mac, aesBlock); makeMacCipher().processBlock(aesBlock, 0, aesBlock, 0); // Note that although the mac digest size is 32 bytes, we only use 16 bytes in the computation int length = 16; for (int i = 0; i < length; i++) { aesBlock[i] ^= seed[i + offset]; } mac.update(aesBlock, 0, length); byte[] result = new byte[mac.getDigestSize()]; doSum(mac, result); if (egress) { System.arraycopy(result, 0, out, outOffset, length); } else { for (int i = 0; i < length; i++) { if (out[i + outOffset] != result[i]) { throw new IOException("MAC mismatch"); } } } return result; }
AESEngine aesFastEngine = new AESEngine(); IESEngine iesEngine = new IESEngine( new ECDHBasicAgreement(), new KDF2BytesGenerator(new SHA256Digest()), gen.init(new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom())); iesEngine.init(true, p1.getPrivate(), p2.getPublic(), parametersWithIV); byte[] cipher = iesEngine.processBlock(message, 0, message.length); log.info("cipher: {}", Hex.toHexString(cipher)); IESEngine decryptorIES_Engine = new IESEngine( new ECDHBasicAgreement(), new KDF2BytesGenerator (new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); decryptorIES_Engine.init(false, p2.getPrivate(), p1.getPublic(), parametersWithIV); byte[] orig = decryptorIES_Engine.processBlock(cipher, 0, cipher.length);
AESEngine engine = new AESEngine(); SICBlockCipher ctrEngine = new SICBlockCipher(engine); while(i < cipher.length){ ctrEngine.processBlock(cipher, i, out, i); i += engine.getBlockSize(); if (cipher.length - i < engine.getBlockSize()) break;
public RFC3211Wrap() { super(new RFC3211WrapEngine(new AESFastEngine()), 16); } }
public RFC5649Wrap() { super(new RFC5649WrapEngine(new AESEngine())); } }
public RFC3211() { super(new RFC3211WrapEngine(new DESedeEngine()), 8); } }
public RFC3211Wrap() { super(new RFC3211WrapEngine(new CamelliaEngine()), 16); } }
public RFC3211() { super(new RFC3211WrapEngine(new DESEngine()), 8); } }
public RFC3211Wrap() { super(new RFC3211WrapEngine(new ARIAEngine()), 16); } }
PaddedBufferedBlockCipher c = new PaddedBufferedBlockCipher(new RijndaelEngine(256), new PKCS7Padding());
AESEngine aesFastEngine = new AESEngine(); IESEngine iesEngine = new IESEngine( new ECDHBasicAgreement(), new KDF2BytesGenerator(new SHA256Digest()), gen.init(new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom())); iesEngine.init(myKey.getPublic(), parametersWithIV, kGen); byte[] cipher = iesEngine.processBlock(message, 0, message.length); log.info("cipher: {}", Hex.toHexString(cipher)); IESEngine decryptorIES_Engine = new IESEngine( new ECDHBasicAgreement(), new KDF2BytesGenerator (new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); decryptorIES_Engine.init(myKey.getPrivate(), parametersWithIV, new ECIESPublicKeyParser(ECKey.CURVE)); byte[] orig = decryptorIES_Engine.processBlock(cipher, 0, cipher.length);
@Test // basic encryption/decryption public void test11() throws Throwable { byte[] keyBytes = sha3("...".getBytes()); log.info("key: {}", Hex.toHexString(keyBytes)); byte[] ivBytes = new byte[16]; byte[] payload = Hex.decode("22400891000000000000000000000000"); KeyParameter key = new KeyParameter(keyBytes); ParametersWithIV params = new ParametersWithIV(key, new byte[16]); AESEngine engine = new AESEngine(); SICBlockCipher ctrEngine = new SICBlockCipher(engine); ctrEngine.init(true, params); byte[] cipher = new byte[16]; ctrEngine.processBlock(payload, 0, cipher, 0); log.info("cipher: {}", Hex.toHexString(cipher)); byte[] output = new byte[cipher.length]; ctrEngine.init(false, params); ctrEngine.processBlock(cipher, 0, output, 0); assertEquals(Hex.toHexString(output), Hex.toHexString(payload)); log.info("original: {}", Hex.toHexString(payload)); }
@Test // big packet encryption public void test12() throws Throwable { AESEngine engine = new AESEngine(); SICBlockCipher ctrEngine = new SICBlockCipher(engine); byte[] keyBytes = Hex.decode("a4627abc2a3c25315bff732cb22bc128f203912dd2a840f31e66efb27a47d2b1"); byte[] ivBytes = new byte[16]; byte[] payload = Hex.decode("0109efc76519b683d543db9d0991bcde99cc9a3d14b1d0ecb8e9f1f66f31558593d746eaa112891b04ef7126e1dce17c9ac92ebf39e010f0028b8ec699f56f5d0c0d00"); byte[] cipherText = Hex.decode("f9fab4e9dd9fc3e5d0d0d16da254a2ac24df81c076e3214e2c57da80a46e6ae4752f4b547889fa692b0997d74f36bb7c047100ba71045cb72cfafcc7f9a251762cdf8f"); KeyParameter key = new KeyParameter(keyBytes); ParametersWithIV params = new ParametersWithIV(key, ivBytes); ctrEngine.init(true, params); byte[] in = payload; byte[] out = new byte[in.length]; int i = 0; while(i < in.length){ ctrEngine.processBlock(in, i, out, i); i += engine.getBlockSize(); if (in.length - i < engine.getBlockSize()) break; } // process left bytes if (in.length - i > 0){ byte[] tmpBlock = new byte[16]; System.arraycopy(in, i, tmpBlock, 0, in.length - i); ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0); System.arraycopy(tmpBlock, 0, out, i, in.length - i); } log.info("cipher: {}", Hex.toHexString(out)); assertEquals(Hex.toHexString(cipherText), Hex.toHexString(out)); }
public RFC3211() { super(new RFC3211WrapEngine(new DESedeEngine()), 8); } }
public RFC3211Wrap() { super(new RFC3211WrapEngine(new CamelliaEngine()), 16); } }
private static EthereumIESEngine makeIESEngine(boolean isEncrypt, ECPoint pub, BigInteger prv, byte[] IV) { AESEngine aesFastEngine = new AESEngine(); EthereumIESEngine iesEngine = new EthereumIESEngine( new ECDHBasicAgreement(), new ConcatKDFBytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new SHA256Digest(), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); byte[] d = new byte[] {}; byte[] e = new byte[] {}; IESParameters p = new IESWithCipherParameters(d, e, KEY_SIZE, KEY_SIZE); ParametersWithIV parametersWithIV = new ParametersWithIV(p, IV); iesEngine.init(isEncrypt, new ECPrivateKeyParameters(prv, CURVE), new ECPublicKeyParameters(pub, CURVE), parametersWithIV); return iesEngine; }
public static byte[] decrypt(ECPoint ephem, BigInteger prv, byte[] IV, byte[] cipher, byte[] macData) throws InvalidCipherTextException { AESEngine aesFastEngine = new AESEngine(); EthereumIESEngine iesEngine = new EthereumIESEngine( new ECDHBasicAgreement(), new ConcatKDFBytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new SHA256Digest(), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); byte[] d = new byte[] {}; byte[] e = new byte[] {}; IESParameters p = new IESWithCipherParameters(d, e, KEY_SIZE, KEY_SIZE); ParametersWithIV parametersWithIV = new ParametersWithIV(p, IV); iesEngine.init(false, new ECPrivateKeyParameters(prv, CURVE), new ECPublicKeyParameters(ephem, CURVE), parametersWithIV); return iesEngine.processBlock(cipher, 0, cipher.length, macData); }
private static EthereumIESEngine makeIESEngine(boolean isEncrypt, ECPoint pub, BigInteger prv, byte[] IV) { AESEngine aesFastEngine = new AESEngine(); EthereumIESEngine iesEngine = new EthereumIESEngine( new ECDHBasicAgreement(), new ConcatKDFBytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new SHA256Digest(), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); byte[] d = new byte[] {}; byte[] e = new byte[] {}; IESParameters p = new IESWithCipherParameters(d, e, KEY_SIZE, KEY_SIZE); ParametersWithIV parametersWithIV = new ParametersWithIV(p, IV); iesEngine.init(isEncrypt, new ECPrivateKeyParameters(prv, curve), new ECPublicKeyParameters(pub, curve), parametersWithIV); return iesEngine; }