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; }
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
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); }
@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)); }
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; }
new KDF2BytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); new KDF2BytesGenerator (new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine)));
@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)); }
new KDF2BytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); new KDF2BytesGenerator (new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine)));
/** * Constructor that accepts an instance of a block cipher engine. * * @param cipher the engine to use */ public EAXBlockCipher(BlockCipher cipher) { blockSize = cipher.getBlockSize(); mac = new CMac(cipher); macBlock = new byte[blockSize]; bufBlock = new byte[blockSize * 2]; associatedTextMac = new byte[mac.getMacSize()]; nonceMac = new byte[mac.getMacSize()]; this.cipher = new SICBlockCipher(cipher); }
/** * Constructor that accepts an instance of a block cipher engine. * * @param cipher the engine to use */ public EAXBlockCipher(BlockCipher cipher) { blockSize = cipher.getBlockSize(); mac = new CMac(cipher); macBlock = new byte[blockSize]; associatedTextMac = new byte[mac.getMacSize()]; nonceMac = new byte[mac.getMacSize()]; this.cipher = new SICBlockCipher(cipher); }
private static EthereumIESEngine makeIESEngine(boolean isEncrypt, ECPoint pub, BigInteger prv, byte[] IV) { AESFastEngine aesFastEngine = new AESFastEngine(); 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); }
public static byte[] decrypt(ECPoint ephem, BigInteger prv, byte[] IV, byte[] cipher, byte[] macData) throws InvalidCipherTextException { AESFastEngine aesFastEngine = new AESFastEngine(); 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; } }
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
@Test // basic encryption/decryption public void test11() { byte[] keyBytes = sha3("...".getBytes()); log.info("key: {}", Hex.toHexString(keyBytes)); 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)); }
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; }
new KDF2BytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine))); new KDF2BytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine)));
@Test // big packet encryption public void test12() { 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[] out = new byte[payload.length]; int i = 0; while (i < payload.length) { ctrEngine.processBlock(payload, i, out, i); i += engine.getBlockSize(); if (payload.length - i < engine.getBlockSize()) { break; } } // process left bytes if (payload.length - i > 0) { byte[] tmpBlock = new byte[16]; System.arraycopy(payload, i, tmpBlock, 0, payload.length - i); ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0); System.arraycopy(tmpBlock, 0, out, i, payload.length - i); } log.info("cipher: {}", Hex.toHexString(out)); assertEquals(Hex.toHexString(cipherText), Hex.toHexString(out)); }