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Example 1 with HMac

use of org.spongycastle.crypto.macs.HMac in project rskj by rsksmart.

the class CryptoTest method test14.

// ECIES_AES128_SHA256 + No Ephemeral Key + IV(all zeroes)
@Test
public void test14() throws Throwable {
    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);
    AsymmetricCipherKeyPair p1 = eGen.generateKeyPair();
    AsymmetricCipherKeyPair p2 = eGen.generateKeyPair();
    ECKeyGenerationParameters keygenParams = new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom());
    ECKeyPairGenerator generator = new ECKeyPairGenerator();
    generator.init(keygenParams);
    ECKeyPairGenerator gen = new ECKeyPairGenerator();
    gen.init(new ECKeyGenerationParameters(ECKey.CURVE, new SecureRandom()));
    iesEngine.init(true, p1.getPrivate(), p2.getPublic(), parametersWithIV);
    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(false, p2.getPrivate(), p1.getPublic(), parametersWithIV);
    byte[] orig = decryptorIES_Engine.processBlock(cipher, 0, cipher.length);
    log.info("orig: " + Hex.toHexString(orig));
}
Also used : ECKeyPairGenerator(org.spongycastle.crypto.generators.ECKeyPairGenerator) HMac(org.spongycastle.crypto.macs.HMac) SecureRandom(java.security.SecureRandom) SICBlockCipher(org.spongycastle.crypto.modes.SICBlockCipher) AESFastEngine(org.spongycastle.crypto.engines.AESFastEngine) KeyGenerationParameters(org.spongycastle.crypto.KeyGenerationParameters) IESEngine(org.spongycastle.crypto.engines.IESEngine) AsymmetricCipherKeyPair(org.spongycastle.crypto.AsymmetricCipherKeyPair) ECDHBasicAgreement(org.spongycastle.crypto.agreement.ECDHBasicAgreement) KDF2BytesGenerator(org.spongycastle.crypto.generators.KDF2BytesGenerator) SHA256Digest(org.spongycastle.crypto.digests.SHA256Digest) BufferedBlockCipher(org.spongycastle.crypto.BufferedBlockCipher) Test(org.junit.Test)

Example 2 with HMac

use of org.spongycastle.crypto.macs.HMac in project rskj by rsksmart.

the class ECIESCoder method decrypt.

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);
}
Also used : HMac(org.spongycastle.crypto.macs.HMac) SICBlockCipher(org.spongycastle.crypto.modes.SICBlockCipher) AESFastEngine(org.spongycastle.crypto.engines.AESFastEngine) ECDHBasicAgreement(org.spongycastle.crypto.agreement.ECDHBasicAgreement) ConcatKDFBytesGenerator(org.ethereum.ConcatKDFBytesGenerator) SHA256Digest(org.spongycastle.crypto.digests.SHA256Digest) BufferedBlockCipher(org.spongycastle.crypto.BufferedBlockCipher)

Example 3 with HMac

use of org.spongycastle.crypto.macs.HMac in project rskj by rsksmart.

the class ECIESCoder method decryptSimple.

/**
 *  Encryption equivalent to the Crypto++ default ECIES<ECP> settings:
 *
 *  DL_KeyAgreementAlgorithm:        DL_KeyAgreementAlgorithm_DH<struct ECPPoint,struct EnumToType<enum CofactorMultiplicationOption,0> >
 *  DL_KeyDerivationAlgorithm:       DL_KeyDerivationAlgorithm_P1363<struct ECPPoint,0,class P1363_KDF2<class SHA1> >
 *  DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor<class HMAC<class SHA1>,0>
 *  DL_PrivateKey:                   DL_Key<ECPPoint>
 *  DL_PrivateKey_EC<class ECP>
 *
 *  Used for Whisper V3
 */
public static byte[] decryptSimple(BigInteger privKey, byte[] cipher) throws IOException, InvalidCipherTextException {
    EthereumIESEngine iesEngine = new EthereumIESEngine(new ECDHBasicAgreement(), new MGF1BytesGeneratorExt(new SHA1Digest(), 1), new HMac(new SHA1Digest()), new SHA1Digest(), null);
    IESParameters p = new IESParameters(null, null, KEY_SIZE);
    ParametersWithIV parametersWithIV = new ParametersWithIV(p, new byte[0]);
    iesEngine.setHashMacKey(false);
    iesEngine.init(new ECPrivateKeyParameters(privKey, CURVE), parametersWithIV, new ECIESPublicKeyParser(ECKey.CURVE));
    return iesEngine.processBlock(cipher, 0, cipher.length);
}
Also used : ECDHBasicAgreement(org.spongycastle.crypto.agreement.ECDHBasicAgreement) HMac(org.spongycastle.crypto.macs.HMac) SHA1Digest(org.spongycastle.crypto.digests.SHA1Digest) ECIESPublicKeyParser(org.spongycastle.crypto.parsers.ECIESPublicKeyParser)

Example 4 with HMac

use of org.spongycastle.crypto.macs.HMac 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;
}
Also used : HMac(org.spongycastle.crypto.macs.HMac) SICBlockCipher(org.spongycastle.crypto.modes.SICBlockCipher) AESFastEngine(org.spongycastle.crypto.engines.AESFastEngine) ECDHBasicAgreement(org.spongycastle.crypto.agreement.ECDHBasicAgreement) ConcatKDFBytesGenerator(org.ethereum.ConcatKDFBytesGenerator) SHA256Digest(org.spongycastle.crypto.digests.SHA256Digest) BufferedBlockCipher(org.spongycastle.crypto.BufferedBlockCipher)

Example 5 with HMac

use of org.spongycastle.crypto.macs.HMac in project rskj by rsksmart.

the class ECIESCoder method encryptSimple.

/**
 *  Encryption equivalent to the Crypto++ default ECIES<ECP> settings:
 *
 *  DL_KeyAgreementAlgorithm:        DL_KeyAgreementAlgorithm_DH<struct ECPPoint,struct EnumToType<enum CofactorMultiplicationOption,0> >
 *  DL_KeyDerivationAlgorithm:       DL_KeyDerivationAlgorithm_P1363<struct ECPPoint,0,class P1363_KDF2<class SHA1> >
 *  DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor<class HMAC<class SHA1>,0>
 *  DL_PrivateKey:                   DL_Key<ECPPoint>
 *  DL_PrivateKey_EC<class ECP>
 *
 *  Used for Whisper V3
 */
public static byte[] encryptSimple(ECPoint pub, byte[] plaintext) throws IOException, InvalidCipherTextException {
    EthereumIESEngine iesEngine = new EthereumIESEngine(new ECDHBasicAgreement(), new MGF1BytesGeneratorExt(new SHA1Digest(), 1), new HMac(new SHA1Digest()), new SHA1Digest(), null);
    IESParameters p = new IESParameters(null, null, KEY_SIZE);
    ParametersWithIV parametersWithIV = new ParametersWithIV(p, new byte[0]);
    iesEngine.setHashMacKey(false);
    ECKeyPairGenerator eGen = new ECKeyPairGenerator();
    SecureRandom random = new SecureRandom();
    KeyGenerationParameters gParam = new ECKeyGenerationParameters(CURVE, random);
    eGen.init(gParam);
    EphemeralKeyPairGenerator ephemeralKeyPairGenerator = new EphemeralKeyPairGenerator(/*testGen*/
    eGen, new ECIESPublicKeyEncoder());
    iesEngine.init(new ECPublicKeyParameters(pub, CURVE), parametersWithIV, ephemeralKeyPairGenerator);
    return iesEngine.processBlock(plaintext, 0, plaintext.length);
}
Also used : ECKeyPairGenerator(org.spongycastle.crypto.generators.ECKeyPairGenerator) EphemeralKeyPairGenerator(org.spongycastle.crypto.generators.EphemeralKeyPairGenerator) HMac(org.spongycastle.crypto.macs.HMac) SHA1Digest(org.spongycastle.crypto.digests.SHA1Digest) SecureRandom(java.security.SecureRandom) KeyGenerationParameters(org.spongycastle.crypto.KeyGenerationParameters) ECDHBasicAgreement(org.spongycastle.crypto.agreement.ECDHBasicAgreement)

Aggregations

HMac (org.spongycastle.crypto.macs.HMac)8 ECDHBasicAgreement (org.spongycastle.crypto.agreement.ECDHBasicAgreement)7 SHA256Digest (org.spongycastle.crypto.digests.SHA256Digest)5 AESFastEngine (org.spongycastle.crypto.engines.AESFastEngine)5 SICBlockCipher (org.spongycastle.crypto.modes.SICBlockCipher)5 BufferedBlockCipher (org.spongycastle.crypto.BufferedBlockCipher)4 SecureRandom (java.security.SecureRandom)3 ConcatKDFBytesGenerator (org.ethereum.ConcatKDFBytesGenerator)3 KeyGenerationParameters (org.spongycastle.crypto.KeyGenerationParameters)3 ECKeyPairGenerator (org.spongycastle.crypto.generators.ECKeyPairGenerator)3 Test (org.junit.Test)2 AsymmetricCipherKeyPair (org.spongycastle.crypto.AsymmetricCipherKeyPair)2 SHA1Digest (org.spongycastle.crypto.digests.SHA1Digest)2 IESEngine (org.spongycastle.crypto.engines.IESEngine)2 EphemeralKeyPairGenerator (org.spongycastle.crypto.generators.EphemeralKeyPairGenerator)2 KDF2BytesGenerator (org.spongycastle.crypto.generators.KDF2BytesGenerator)2 ECIESPublicKeyParser (org.spongycastle.crypto.parsers.ECIESPublicKeyParser)2 KeyEncoder (org.spongycastle.crypto.KeyEncoder)1 AsymmetricKeyParameter (org.spongycastle.crypto.params.AsymmetricKeyParameter)1 KeyParameter (org.spongycastle.crypto.params.KeyParameter)1