org.spongycastle.crypto.signers.HMacDSAKCalculator Java Examples

The following examples show how to use org.spongycastle.crypto.signers.HMacDSAKCalculator. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: ECKey.java From GreenBits with GNU General Public License v3.0

6 votes

protected ECDSASignature doSign(Sha256Hash input, BigInteger privateKeyForSigning) {
    if (Secp256k1Context.isEnabled()) {
        try {
            byte[] signature = NativeSecp256k1.sign(
                    input.getBytes(),
                    Utils.bigIntegerToBytes(privateKeyForSigning, 32)
            );
            return ECDSASignature.decodeFromDER(signature);
        } catch (NativeSecp256k1Util.AssertFailException e) {
            log.error("Caught AssertFailException inside secp256k1", e);
            throw new RuntimeException(e);
        }
    }
    if (FAKE_SIGNATURES)
        return TransactionSignature.dummy();
    checkNotNull(privateKeyForSigning);
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(privateKeyForSigning, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(input.getBytes());
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #2

Source File: ECKey.java From wkcwallet-java with Apache License 2.0

6 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers
 * and put them in ECDSASignature
 *
 * @param input
 *            to sign
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
    if (input.length != 32) {
        throw new IllegalArgumentException("Expected 32 byte input to ECDSA signature, not " + input.length);
    }
    // No decryption of private key required.
    if (privKey == null)
        throw new MissingPrivateKeyException();
    if (privKey instanceof BCECPrivateKey) {
        ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
        ECPrivateKeyParameters privKeyParams = new ECPrivateKeyParameters(((BCECPrivateKey) privKey).getD(), CURVE);
        signer.init(true, privKeyParams);
        BigInteger[] components = signer.generateSignature(input);
        return new ECDSASignature(components[0], components[1]).toCanonicalised();
    } else {
        try {
            final Signature ecSig = ECSignatureFactory.getRawInstance(provider);
            ecSig.initSign(privKey);
            ecSig.update(input);
            final byte[] derSignature = ecSig.sign();
            return ECDSASignature.decodeFromDER(derSignature).toCanonicalised();
        } catch (SignatureException | InvalidKeyException ex) {
            throw new RuntimeException("ECKey signing error", ex);
        }
    }
}

Example #3

Source File: ECKey.java From green_android with GNU General Public License v3.0

6 votes

protected ECDSASignature doSign(Sha256Hash input, BigInteger privateKeyForSigning) {
    if (Secp256k1Context.isEnabled()) {
        try {
            byte[] signature = NativeSecp256k1.sign(
                    input.getBytes(),
                    Utils.bigIntegerToBytes(privateKeyForSigning, 32)
            );
            return ECDSASignature.decodeFromDER(signature);
        } catch (NativeSecp256k1Util.AssertFailException e) {
            log.error("Caught AssertFailException inside secp256k1", e);
            throw new RuntimeException(e);
        }
    }
    if (FAKE_SIGNATURES)
        return TransactionSignature.dummy();
    checkNotNull(privateKeyForSigning);
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(privateKeyForSigning, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(input.getBytes());
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #4

Source File: BTCUtils.java From BlockchainWallet-Crypto with GNU General Public License v3.0

6 votes

public static boolean verify(byte[] publicKey, byte[] signature, byte[] msg) {
    X9ECParameters params = SECNamedCurves.getByName("secp256k1");
    ECDomainParameters EC_PARAMS = new ECDomainParameters(params.getCurve(), params.getG(), params.getN(), params.getH());
    synchronized (EC_PARAMS) {
        boolean valid;
        ECDSASigner signerVer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
        try {
            ECPublicKeyParameters pubKey = new ECPublicKeyParameters(EC_PARAMS.getCurve().decodePoint(publicKey), EC_PARAMS);
            signerVer.init(false, pubKey);
            ASN1InputStream derSigStream = new ASN1InputStream(signature);
            DLSequence seq = (DLSequence) derSigStream.readObject();
            BigInteger r = ((ASN1Integer) seq.getObjectAt(0)).getPositiveValue();
            BigInteger s = ((ASN1Integer) seq.getObjectAt(1)).getPositiveValue();
            derSigStream.close();
            valid = signerVer.verifySignature(msg, r, s);
        } catch (IOException e) {
            throw new RuntimeException();
        }
        return valid;
    }
}

Example #5

Source File: ECKey.java From bcm-android with GNU General Public License v3.0

6 votes

protected ECDSASignature doSign(Sha256Hash input, BigInteger privateKeyForSigning) {
    if (Secp256k1Context.isEnabled()) {
        try {
            byte[] signature = NativeSecp256k1.sign(
                    input.getBytes(),
                    Utils.bigIntegerToBytes(privateKeyForSigning, 32)
            );
            return ECDSASignature.decodeFromDER(signature);
        } catch (NativeSecp256k1Util.AssertFailException e) {
            log.error("Caught AssertFailException inside secp256k1", e);
            throw new RuntimeException(e);
        }
    }
    if (FAKE_SIGNATURES)
        return TransactionSignature.dummy();
    checkNotNull(privateKeyForSigning);
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(privateKeyForSigning, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(input.getBytes());
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #6

Source File: EthECKeyPair.java From BlockchainWallet-Crypto with GNU General Public License v3.0

5 votes

public ECDSASignature doSign(byte[] input) {
    if (input.length != 32) {
        throw new IllegalArgumentException("Expected 32 byte input to ECDSA signature, not "
                + input.length);
    }
    // No decryption of private key required.
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKeyParams = new ECPrivateKeyParameters(priv, domain);
    signer.init(true, privKeyParams);
    BigInteger[] components = signer.generateSignature(input);
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #7

Source File: ECKey.java From ethereumj with MIT License

5 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers 
 * and put them in ECDSASignature 
 * 
 * @param input to sign
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
    // No decryption of private key required.
    if (priv == null)
        throw new MissingPrivateKeyException();
    check(priv != null, "Private key must not be null");
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(input);
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #8

Source File: ECKey.java From nuls with MIT License

5 votes

protected byte[] doSign(byte[] input, BigInteger privateKeyForSigning) {
    Util.checkNotNull(privateKeyForSigning);
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(privateKeyForSigning, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(input);
    return new ECDSASignature(components[0], components[1]).toCanonicalised().encodeToDER();
}

Example #9

Source File: ECKey.java From asf-sdk with GNU General Public License v3.0

5 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers
 * and put them in ECDSASignature
 *
 * @param input to sign
 *
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
  if (input.length != 32) {
    throw new IllegalArgumentException(
        "Expected 32 byte input to ECDSA signature, not " + input.length);
  }
  // No decryption of private key required.
  if (privKey == null) throw new MissingPrivateKeyException();
  if (privKey instanceof BCECPrivateKey) {
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKeyParams =
        new ECPrivateKeyParameters(((BCECPrivateKey) privKey).getD(), CURVE);
    signer.init(true, privKeyParams);
    BigInteger[] components = signer.generateSignature(input);
    return new ECDSASignature(components[0], components[1]).toCanonicalised();
  } else {
    try {
      Signature ecSig = ECSignatureFactory.getRawInstance(provider);
      ecSig.initSign(privKey);
      ecSig.update(input);
      byte[] derSignature = ecSig.sign();
      return ECDSASignature.decodeFromDER(derSignature)
          .toCanonicalised();
    } catch (SignatureException | InvalidKeyException ex) {
      throw new RuntimeException("ECKey signing error", ex);
    }
  }
}

Example #10

Source File: ECKey.java From tron-wallet-android with Apache License 2.0

5 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers and putData them in
 * ECDSASignature
 *
 * @param input to sign
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
  if (input.length != 32) {
    throw new IllegalArgumentException("Expected 32 byte input to " +
        "ECDSA signature, not " + input.length);
  }
  // No decryption of private key required.
  if (privKey == null) {
    throw new MissingPrivateKeyException();
  }
  if (privKey instanceof BCECPrivateKey) {
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new
        SHA256Digest()));
    ECPrivateKeyParameters privKeyParams = new ECPrivateKeyParameters
        (((BCECPrivateKey) privKey).getD(), CURVE);
    signer.init(true, privKeyParams);
    BigInteger[] components = signer.generateSignature(input);
    return new ECDSASignature(components[0], components[1])
        .toCanonicalised();
  } else {
    try {
      final Signature ecSig = ECSignatureFactory.getRawInstance
          (provider);
      ecSig.initSign(privKey);
      ecSig.update(input);
      final byte[] derSignature = ecSig.sign();
      return ECDSASignature.decodeFromDER(derSignature)
          .toCanonicalised();
    } catch (SignatureException | InvalidKeyException ex) {
      throw new RuntimeException("ECKey signing error", ex);
    }
  }
}

Example #11

Source File: ECDSAAlgorithm.java From md_blockchain with Apache License 2.0

5 votes

public static String sign(String privateKey, byte[] data) {
    byte[] hash256 = BaseAlgorithm.encode("SHA-256", data);
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    BigInteger pri = new BigInteger(1, Base64.decodeBase64(privateKey));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(pri, CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(hash256);
    byte[] content = new ECDSASignature(components[0], components[1]).toCanonicalised().encodeToDER();
    String result = Base64.encodeBase64String(content);
    result = result.replaceAll("[\\s*\t\n\r]", "");
    return result;
}

Example #12

Source File: ECKey.java From gsc-core with GNU Lesser General Public License v3.0

5 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers and putData them in
 * ECDSASignature
 *
 * @param input to sign
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
    if (input.length != 32) {
        throw new IllegalArgumentException("Expected 32 byte input to " +
                "ECDSA signature, not " + input.length);
    }
    // No decryption of private key required.
    if (privKey == null) {
        throw new MissingPrivateKeyException();
    }
    if (privKey instanceof BCECPrivateKey) {
        ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new
                SHA256Digest()));
        ECPrivateKeyParameters privKeyParams = new ECPrivateKeyParameters
                (((BCECPrivateKey) privKey).getD(), CURVE);
        signer.init(true, privKeyParams);
        BigInteger[] components = signer.generateSignature(input);
        return new ECDSASignature(components[0], components[1])
                .toCanonicalised();
    } else {
        try {
            final Signature ecSig = ECSignatureFactory.getRawInstance
                    (provider);
            ecSig.initSign(privKey);
            ecSig.update(input);
            final byte[] derSignature = ecSig.sign();
            return ECDSASignature.decodeFromDER(derSignature)
                    .toCanonicalised();
        } catch (SignatureException | InvalidKeyException ex) {
            throw new RuntimeException("ECKey signing error", ex);
        }
    }
}

Example #13

Source File: ECKey.java From guarda-android-wallets with GNU General Public License v3.0

5 votes

public ECDSASignature sign(Sha256Hash input) {
  ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
  ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
  signer.init(true, privKey);
  BigInteger[] components = signer.generateSignature(input.getBytes());
  return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #14

Source File: ECKey.java From guarda-android-wallets with GNU General Public License v3.0

5 votes

public ECDSASignature sign(Sha256Hash input) {
  ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
  ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
  signer.init(true, privKey);
  BigInteger[] components = signer.generateSignature(input.getBytes());
  return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #15

Source File: ECKey.java From guarda-android-wallets with GNU General Public License v3.0

5 votes

public ECDSASignature sign(Sha256Hash input) {
  ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
  ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
  signer.init(true, privKey);
  BigInteger[] components = signer.generateSignature(input.getBytes());
  return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #16

Source File: ECKey.java From guarda-android-wallets with GNU General Public License v3.0

5 votes

public ECDSASignature sign(Sha256Hash input) {
  ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
  ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(priv, CURVE);
  signer.init(true, privKey);
  BigInteger[] components = signer.generateSignature(input.getBytes());
  return new ECDSASignature(components[0], components[1]).toCanonicalised();
}

Example #17

Source File: Secp256k1.java From neb.java with GNU Lesser General Public License v3.0

5 votes

public static byte[] Sign(byte[] data, byte[] privateKey) {
    if (data.length != 32) {
        throw new IllegalArgumentException("Expected 32 byte input to ECDSA signature, not " + data.length);
    }
    ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
    ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(new BigInteger(1, privateKey), CURVE);
    signer.init(true, privKey);
    BigInteger[] components = signer.generateSignature(data);

    ECDSASignature signature = new ECDSASignature(components[0], components[1]).toCanonicalised();

    // Now we have to work backwards to figure out the recId needed to recover the signature.
    int recId = -1;
    byte[] pubkey = PublicFromPrivateKey(privateKey);
    for (int i = 0; i < 4; i++) {
        byte[] k = recoverPubBytesFromSignature(i, signature, data);
        if (k != null && Arrays.equals(k, pubkey)) {
            recId = i;
            break;
        }
    }
    if (recId == -1) {
        throw new RuntimeException("Could not construct a recoverable key. This should never happen.");
    }
    signature.v = (byte) (recId + 27);

    return signature.toByteArray();

}

Example #18

Source File: ECKeySecp256k1.java From aion with MIT License

5 votes

/**
 * Signs the given hash and returns the R and S components as BigIntegers and put them in
 * ECDSASignature
 *
 * @param input to sign
 * @return ECDSASignature signature that contains the R and S components
 */
public ECDSASignature doSign(byte[] input) {
    if (input.length != 32) {
        throw new IllegalArgumentException(
                "Expected 32 byte input to ECDSA signature, not " + input.length);
    }
    // No decryption of private key required.
    if (privKey == null) {
        throw new MissingPrivateKeyException();
    }
    if (privKey instanceof BCECPrivateKey) {
        ECDSASigner signer = new ECDSASigner(new HMacDSAKCalculator(new SHA256Digest()));
        ECPrivateKeyParameters privKeyParams =
                new ECPrivateKeyParameters(((BCECPrivateKey) privKey).getD(), CURVE);
        signer.init(true, privKeyParams);
        BigInteger[] components = signer.generateSignature(input);
        return new ECDSASignature(components[0], components[1]).toCanonicalised();
    } else {
        try {
            final Signature ecSig = ECSignatureFactory.getRawInstance(provider);
            ecSig.initSign(privKey);
            ecSig.update(input);
            final byte[] derSignature = ecSig.sign();
            return ECDSASignature.decodeFromDER(derSignature).toCanonicalised();
        } catch (SignatureException | InvalidKeyException ex) {
            throw new RuntimeException("ECKey signing error", ex);
        }
    }
}