Examples with SICBlockCipher org.spongycastle.crypto.modes.SICBlockCipher used on opensource projects

Example 11 with SICBlockCipher

use of org.spongycastle.crypto.modes.SICBlockCipher in project rskj by rsksmart.

the class ECIESCoder method makeIESEngine.

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;
}

Example 12 with SICBlockCipher

use of org.spongycastle.crypto.modes.SICBlockCipher in project rskj by rsksmart.

the class CryptoTest method test15.

// ECIES_AES128_SHA256 + Ephemeral Key + IV(all zeroes)
@Test
public void test15() throws Throwable {
    byte[] privKey = Hex.decode("a4627abc2a3c25315bff732cb22bc128f203912dd2a840f31e66efb27a47d2b1");
    ECKey ecKey = ECKey.fromPrivate(privKey);
    ECPrivateKeyParameters ecPrivKey = new ECPrivateKeyParameters(ecKey.getPrivKey(), ECKey.CURVE);
    ECPublicKeyParameters ecPubKey = new ECPublicKeyParameters(ecKey.getPubKeyPoint(), ECKey.CURVE);
    AsymmetricCipherKeyPair myKey = new AsymmetricCipherKeyPair(ecPubKey, ecPrivKey);
    AESFastEngine aesFastEngine = new AESFastEngine();
    IESEngine iesEngine = new IESEngine(new ECDHBasicAgreement(), new KDF2BytesGenerator(new SHA256Digest()), new HMac(new SHA256Digest()), new BufferedBlockCipher(new SICBlockCipher(aesFastEngine)));
    byte[] d = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
    byte[] e = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };
    IESParameters p = new IESWithCipherParameters(d, e, 64, 128);
    ParametersWithIV parametersWithIV = new ParametersWithIV(p, new byte[16]);
    ECKeyPairGenerator eGen = new ECKeyPairGenerator();
    KeyGenerationParameters gParam = new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom());
    eGen.init(gParam);
    ECKeyGenerationParameters keygenParams = new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom());
    ECKeyPairGenerator generator = new ECKeyPairGenerator();
    generator.init(keygenParams);
    EphemeralKeyPairGenerator kGen = new EphemeralKeyPairGenerator(generator, new KeyEncoder() {

        public byte[] getEncoded(AsymmetricKeyParameter keyParameter) {
            return ((ECPublicKeyParameters) keyParameter).getQ().getEncoded();
        }
    });
    ECKeyPairGenerator gen = new ECKeyPairGenerator();
    gen.init(new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom()));
    iesEngine.init(myKey.getPublic(), parametersWithIV, kGen);
    byte[] message = Hex.decode("010101");
    log.info("payload: {}", Hex.toHexString(message));
    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 HMac(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);
    log.info("orig: " + Hex.toHexString(orig));
}

Example 13 with SICBlockCipher

use of org.spongycastle.crypto.modes.SICBlockCipher in project rskj by rsksmart.

the class CryptoTest method test12.

// big packet encryption
@Test
public void test12() throws Throwable {
    AESFastEngine engine = new AESFastEngine();
    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));
}

Example 14 with SICBlockCipher

use of org.spongycastle.crypto.modes.SICBlockCipher in project rskj by rsksmart.

the class ECIESTest method makeIESEngine.

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;
}