javax.crypto.interfaces.DHPrivateKey Java Examples

The following examples show how to use javax.crypto.interfaces.DHPrivateKey. 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: TLSTestService.java From statelearner with Apache License 2.0

6 votes

public void loadServerKey() throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException, UnrecoverableKeyException, NoSuchProviderException, InvalidAlgorithmParameterException, InvalidKeySpecException {
		char[] password = KEYSTORE_PASSWORD.toCharArray();

		FileInputStream fIn = new FileInputStream(KEYSTORE_FILENAME);
		KeyStore keystore = KeyStore.getInstance("JKS");

		keystore.load(fIn, password);
		serverCertificate = (X509Certificate) keystore.getCertificate("server");
		serverPrivateKey  = (PrivateKey) keystore.getKey("server", password);
		
		// Generate DH keys for this session
		// Use hardcoded DH parameters
		DHParameterSpec dhParams = new DHParameterSpec(new BigInteger(new byte[] {(byte)0x00, (byte)0xad, (byte)0x77, (byte)0xcd, (byte)0xb7, (byte)0x14, (byte)0x6f, (byte)0xfe, (byte)0x08, (byte)0x1a, (byte)0xee, (byte)0xd2, (byte)0x2c, (byte)0x18, (byte)0x29, (byte)0x62, (byte)0x5a, (byte)0xff, (byte)0x03, (byte)0x5d, (byte)0xde, (byte)0xba, (byte)0x0d, (byte)0xd4, (byte)0x36, (byte)0x15, (byte)0x03, (byte)0x11, (byte)0x21, (byte)0x48, (byte)0xd9, (byte)0x77, (byte)0xfb, (byte)0x67, (byte)0xb0, (byte)0x74, (byte)0x2e, (byte)0x68, (byte)0xed, (byte)0x5a, (byte)0x3f, (byte)0x8a, (byte)0x3e, (byte)0xdb, (byte)0x81, (byte)0xa3, (byte)0x3b, (byte)0xaf, (byte)0x26, (byte)0xe4, (byte)0x54, (byte)0x00, (byte)0x85, (byte)0x0d, (byte)0xfd, (byte)0x23, (byte)0x21, (byte)0xc1, (byte)0xfe, (byte)0x69, (byte)0xe4, (byte)0xf3, (byte)0x57, (byte)0xe6, (byte)0x0a, (byte)0x7c, (byte)0x62, (byte)0xc0, (byte)0xd6, (byte)0x40, (byte)0x3e, (byte)0x94, (byte)0x9e, (byte)0x49, (byte)0x72, (byte)0x5a, (byte)0x21, (byte)0x53, (byte)0xb0, (byte)0x83, (byte)0x05, (byte)0x81, (byte)0x5a, (byte)0xde, (byte)0x17, (byte)0x31, (byte)0xbf, (byte)0xa8, (byte)0xa9, (byte)0xe5, (byte)0x28, (byte)0x1a, (byte)0xfc, (byte)0x06, (byte)0x1e, (byte)0x49, (byte)0xfe, (byte)0xdc, (byte)0x08, (byte)0xe3, (byte)0x29, (byte)0xfe, (byte)0x5b, (byte)0x88, (byte)0x66, (byte)0x39, (byte)0xa8, (byte)0x69, (byte)0x62, (byte)0x88, (byte)0x47, (byte)0x36, (byte)0xf5, (byte)0xdd, (byte)0x92, (byte)0x8f, (byte)0xca, (byte)0x32, (byte)0x4b, (byte)0x87, (byte)0xad, (byte)0xbf, (byte)0xab, (byte)0x4a, (byte)0x9d, (byte)0xd5, (byte)0xb8, (byte)0x2c, (byte)0xc4, (byte)0x43, (byte)0xb2, (byte)0x21, (byte)0xb4, (byte)0x2a, (byte)0x9b, (byte)0x42, (byte)0x17, (byte)0x6d, (byte)0xb6, (byte)0x86, (byte)0x42, (byte)0x41, (byte)0xb1, (byte)0xc7, (byte)0x37, (byte)0x37, (byte)0x95, (byte)0x6d, (byte)0x62, (byte)0xca, (byte)0xa6, (byte)0x57, (byte)0x33, (byte)0x88, (byte)0xe2, (byte)0x31, (byte)0xfe, (byte)0xd1, (byte)0x51, (byte)0xe7, (byte)0x73, (byte)0xae, (byte)0x3c, (byte)0xa7, (byte)0x4b, (byte)0xbc, (byte)0x8a, (byte)0x3d, (byte)0xc5, (byte)0x9a, (byte)0x28, (byte)0x9a, (byte)0xf9, (byte)0x57, (byte)0xb6, (byte)0xec, (byte)0xf6, (byte)0x75, (byte)0xaa, (byte)0x56, (byte)0xc1, (byte)0x42, (byte)0x9f, (byte)0x6a, (byte)0x7c, (byte)0x91, (byte)0x8b, (byte)0x5e, (byte)0xea, (byte)0x54, (byte)0x32, (byte)0x90, (byte)0x8a, (byte)0x9d, (byte)0x76, (byte)0x2a, (byte)0x29, (byte)0x1b, (byte)0x84, (byte)0x35, (byte)0xe6, (byte)0x21, (byte)0x07, (byte)0xb2, (byte)0xcb, (byte)0x5c, (byte)0xf9, (byte)0x5b, (byte)0xe9, (byte)0x5e, (byte)0x1b, (byte)0x80, (byte)0xd5, (byte)0x53, (byte)0xd7, (byte)0xa4, (byte)0x26, (byte)0x58, (byte)0xe4, (byte)0xe9, (byte)0x3f, (byte)0xfd, (byte)0xeb, (byte)0x78, (byte)0xf2, (byte)0x25, (byte)0x02, (byte)0x42, (byte)0xf8, (byte)0x50, (byte)0x13, (byte)0xbb, (byte)0x01, (byte)0x39, (byte)0xf3, (byte)0xcf, (byte)0x5c, (byte)0x51, (byte)0xdf, (byte)0xed, (byte)0xc5, (byte)0xfa, (byte)0xd8, (byte)0x4f, (byte)0xae, (byte)0x76, (byte)0xe8, (byte)0x30, (byte)0xfc, (byte)0x85, (byte)0xaa, (byte)0x8c, (byte)0x91, (byte)0x02, (byte)0x2b, (byte)0x61, (byte)0x87
}), new BigInteger(new byte[] { 0x05 }));
		
	    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DiffieHellman");
	    keyPairGenerator.initialize(dhParams);
	    
	    KeyPair keyPair = keyPairGenerator.generateKeyPair();
	    dhPubKey = (DHPublicKey)keyPair.getPublic();
	    dhPrivateKey = (DHPrivateKey)keyPair.getPrivate();
	}

Example #2

Source File: KeyAgreementSpi.java From RipplePower with Apache License 2.0

6 votes

protected void engineInit(
    Key             key,
    SecureRandom    random) 
    throws InvalidKeyException
{
    if (!(key instanceof DHPrivateKey))
    {
        throw new InvalidKeyException("DHKeyAgreement requires DHPrivateKey");
    }

    DHPrivateKey    privKey = (DHPrivateKey)key;

    this.p = privKey.getParams().getP();
    this.g = privKey.getParams().getG();
    this.x = this.result = privKey.getX();
}

Example #3

Source File: ToolDH.java From protools with Apache License 2.0

6 votes

/**
 * 初始化甲方密钥
 *
 * @return Map 甲方密钥Map
 *
 * @throws Exception
 */
public static Map<String, Object> initKey() throws NoSuchAlgorithmException {

    // 实例化密钥对生成器
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(KEY_ALGORITHM);

    // 初始化密钥对生成器
    keyPairGenerator.initialize(KEY_SIZE);

    // 生成密钥对
    KeyPair keyPair = keyPairGenerator.generateKeyPair();

    // 甲方公钥
    DHPublicKey publicKey = (DHPublicKey) keyPair.getPublic();

    // 甲方私钥
    DHPrivateKey privateKey = (DHPrivateKey) keyPair.getPrivate();

    // 将密钥对存储在Map中
    Map<String, Object> keyMap = Maps.newHashMapWithExpectedSize(2);

    keyMap.put(PUBLIC_KEY, publicKey);
    keyMap.put(PRIVATE_KEY, privateKey);

    return keyMap;
}

Example #4

Source File: KeyFactorySpi.java From RipplePower with Apache License 2.0

6 votes

protected Key engineTranslateKey(
    Key key)
    throws InvalidKeyException
{
    if (key instanceof DHPublicKey)
    {
        return new BCElGamalPublicKey((DHPublicKey)key);
    }
    else if (key instanceof DHPrivateKey)
    {
        return new BCElGamalPrivateKey((DHPrivateKey)key);
    }
    else if (key instanceof ElGamalPublicKey)
    {
        return new BCElGamalPublicKey((ElGamalPublicKey)key);
    }
    else if (key instanceof ElGamalPrivateKey)
    {
        return new BCElGamalPrivateKey((ElGamalPrivateKey)key);
    }

    throw new InvalidKeyException("key type unknown");
}

Example #5

Source File: TLSTestService.java From statelearner with Apache License 2.0

6 votes

public void loadClientKey() throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException, UnrecoverableKeyException, InvalidAlgorithmParameterException {
		char[] password = KEYSTORE_PASSWORD.toCharArray();

		FileInputStream fIn = new FileInputStream(KEYSTORE_FILENAME);
		KeyStore keystore = KeyStore.getInstance("JKS");

		keystore.load(fIn, password);
		clientCertificate = (X509Certificate) keystore.getCertificate("client");
		clientPrivateKey  = (PrivateKey) keystore.getKey("client", password);
		
		// Generate DH keys for this session
		// Use hardcoded DH parameters
		DHParameterSpec dhParams = new DHParameterSpec(new BigInteger(new byte[] {(byte)0x00, (byte)0xad, (byte)0x77, (byte)0xcd, (byte)0xb7, (byte)0x14, (byte)0x6f, (byte)0xfe, (byte)0x08, (byte)0x1a, (byte)0xee, (byte)0xd2, (byte)0x2c, (byte)0x18, (byte)0x29, (byte)0x62, (byte)0x5a, (byte)0xff, (byte)0x03, (byte)0x5d, (byte)0xde, (byte)0xba, (byte)0x0d, (byte)0xd4, (byte)0x36, (byte)0x15, (byte)0x03, (byte)0x11, (byte)0x21, (byte)0x48, (byte)0xd9, (byte)0x77, (byte)0xfb, (byte)0x67, (byte)0xb0, (byte)0x74, (byte)0x2e, (byte)0x68, (byte)0xed, (byte)0x5a, (byte)0x3f, (byte)0x8a, (byte)0x3e, (byte)0xdb, (byte)0x81, (byte)0xa3, (byte)0x3b, (byte)0xaf, (byte)0x26, (byte)0xe4, (byte)0x54, (byte)0x00, (byte)0x85, (byte)0x0d, (byte)0xfd, (byte)0x23, (byte)0x21, (byte)0xc1, (byte)0xfe, (byte)0x69, (byte)0xe4, (byte)0xf3, (byte)0x57, (byte)0xe6, (byte)0x0a, (byte)0x7c, (byte)0x62, (byte)0xc0, (byte)0xd6, (byte)0x40, (byte)0x3e, (byte)0x94, (byte)0x9e, (byte)0x49, (byte)0x72, (byte)0x5a, (byte)0x21, (byte)0x53, (byte)0xb0, (byte)0x83, (byte)0x05, (byte)0x81, (byte)0x5a, (byte)0xde, (byte)0x17, (byte)0x31, (byte)0xbf, (byte)0xa8, (byte)0xa9, (byte)0xe5, (byte)0x28, (byte)0x1a, (byte)0xfc, (byte)0x06, (byte)0x1e, (byte)0x49, (byte)0xfe, (byte)0xdc, (byte)0x08, (byte)0xe3, (byte)0x29, (byte)0xfe, (byte)0x5b, (byte)0x88, (byte)0x66, (byte)0x39, (byte)0xa8, (byte)0x69, (byte)0x62, (byte)0x88, (byte)0x47, (byte)0x36, (byte)0xf5, (byte)0xdd, (byte)0x92, (byte)0x8f, (byte)0xca, (byte)0x32, (byte)0x4b, (byte)0x87, (byte)0xad, (byte)0xbf, (byte)0xab, (byte)0x4a, (byte)0x9d, (byte)0xd5, (byte)0xb8, (byte)0x2c, (byte)0xc4, (byte)0x43, (byte)0xb2, (byte)0x21, (byte)0xb4, (byte)0x2a, (byte)0x9b, (byte)0x42, (byte)0x17, (byte)0x6d, (byte)0xb6, (byte)0x86, (byte)0x42, (byte)0x41, (byte)0xb1, (byte)0xc7, (byte)0x37, (byte)0x37, (byte)0x95, (byte)0x6d, (byte)0x62, (byte)0xca, (byte)0xa6, (byte)0x57, (byte)0x33, (byte)0x88, (byte)0xe2, (byte)0x31, (byte)0xfe, (byte)0xd1, (byte)0x51, (byte)0xe7, (byte)0x73, (byte)0xae, (byte)0x3c, (byte)0xa7, (byte)0x4b, (byte)0xbc, (byte)0x8a, (byte)0x3d, (byte)0xc5, (byte)0x9a, (byte)0x28, (byte)0x9a, (byte)0xf9, (byte)0x57, (byte)0xb6, (byte)0xec, (byte)0xf6, (byte)0x75, (byte)0xaa, (byte)0x56, (byte)0xc1, (byte)0x42, (byte)0x9f, (byte)0x6a, (byte)0x7c, (byte)0x91, (byte)0x8b, (byte)0x5e, (byte)0xea, (byte)0x54, (byte)0x32, (byte)0x90, (byte)0x8a, (byte)0x9d, (byte)0x76, (byte)0x2a, (byte)0x29, (byte)0x1b, (byte)0x84, (byte)0x35, (byte)0xe6, (byte)0x21, (byte)0x07, (byte)0xb2, (byte)0xcb, (byte)0x5c, (byte)0xf9, (byte)0x5b, (byte)0xe9, (byte)0x5e, (byte)0x1b, (byte)0x80, (byte)0xd5, (byte)0x53, (byte)0xd7, (byte)0xa4, (byte)0x26, (byte)0x58, (byte)0xe4, (byte)0xe9, (byte)0x3f, (byte)0xfd, (byte)0xeb, (byte)0x78, (byte)0xf2, (byte)0x25, (byte)0x02, (byte)0x42, (byte)0xf8, (byte)0x50, (byte)0x13, (byte)0xbb, (byte)0x01, (byte)0x39, (byte)0xf3, (byte)0xcf, (byte)0x5c, (byte)0x51, (byte)0xdf, (byte)0xed, (byte)0xc5, (byte)0xfa, (byte)0xd8, (byte)0x4f, (byte)0xae, (byte)0x76, (byte)0xe8, (byte)0x30, (byte)0xfc, (byte)0x85, (byte)0xaa, (byte)0x8c, (byte)0x91, (byte)0x02, (byte)0x2b, (byte)0x61, (byte)0x87
}), new BigInteger(new byte[] { 0x05 }));
		
	    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DiffieHellman");
	    keyPairGenerator.initialize(dhParams);
	    
	    KeyPair keyPair = keyPairGenerator.generateKeyPair();
	    dhPubKey = (DHPublicKey)keyPair.getPublic();
	    dhPrivateKey = (DHPrivateKey)keyPair.getPrivate();
	}

Example #6

Source File: DhTest.java From wycheproof with Apache License 2.0

6 votes

/**
 * Tests the default Diffie-Hellman key pair generation.
 *
 * <p>This test uses NIST SP 800-57 part1, revision 4
 * http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r4.pdf . Table 2 on page
 * 53 recommends 2048 bits as the minimal key length for Diffie-Hellman for new keys that expire
 * before the year 2030.
 *
 * <p>Note that JCE documentation is outdated. According to
 * https://docs.oracle.com/javase/7/docs/api/java/security/KeyPairGenerator.html an implementation
 * of the Java platform is only required to support 1024 bit keys.
 */
@NoPresubmitTest(
  providers = {ProviderType.OPENJDK, ProviderType.BOUNCY_CASTLE},
  bugs = {"b/33190860", "b/33190677"}
)
@SlowTest(providers = {ProviderType.BOUNCY_CASTLE, ProviderType.SPONGY_CASTLE})
@Test
public void testDefaultKeyPairGenerator() throws Exception {
  KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH");
  KeyPair keyPair;
  try {
    keyPair = keyGen.generateKeyPair();
  } catch (Exception ex) {
    // When a provider decides not to implement a default key size then this is still better than
    // implementing a default that is out of date. Hence the test should not fail in this case.
    System.out.println("Cannot generate a DH key without initialize: " + ex.getMessage());
    return;
  }
  DHPrivateKey priv = (DHPrivateKey) keyPair.getPrivate();
  int keySize = priv.getParams().getP().bitLength();
  assertTrue("Default key size for DH is too small. Key size = " + keySize, keySize >= 2048);
  testKeyPair(keyPair, keySize);
}

Example #7

Source File: KeyAgreementSpi.java From ripple-lib-java with ISC License

6 votes

protected void engineInit(
    Key             key,
    SecureRandom    random) 
    throws InvalidKeyException
{
    if (!(key instanceof DHPrivateKey))
    {
        throw new InvalidKeyException("DHKeyAgreement requires DHPrivateKey");
    }

    DHPrivateKey    privKey = (DHPrivateKey)key;

    this.p = privKey.getParams().getP();
    this.g = privKey.getParams().getG();
    this.x = this.result = privKey.getX();
}

Example #8

Source File: DHUtil.java From TorrentEngine with GNU General Public License v3.0

6 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }
                    
    throw new InvalidKeyException("can't identify DH private key.");
}

Example #9

Source File: KeyFactorySpi.java From ripple-lib-java with ISC License

6 votes

protected Key engineTranslateKey(
    Key key)
    throws InvalidKeyException
{
    if (key instanceof DHPublicKey)
    {
        return new BCElGamalPublicKey((DHPublicKey)key);
    }
    else if (key instanceof DHPrivateKey)
    {
        return new BCElGamalPrivateKey((DHPrivateKey)key);
    }
    else if (key instanceof ElGamalPublicKey)
    {
        return new BCElGamalPublicKey((ElGamalPublicKey)key);
    }
    else if (key instanceof ElGamalPrivateKey)
    {
        return new BCElGamalPrivateKey((ElGamalPrivateKey)key);
    }

    throw new InvalidKeyException("key type unknown");
}

Example #10

Source File: KeyFactorySpi.java From ripple-lib-java with ISC License

5 votes

protected Key engineTranslateKey(
    Key key)
    throws InvalidKeyException
{
    if (key instanceof DHPublicKey)
    {
        return new BCDHPublicKey((DHPublicKey)key);
    }
    else if (key instanceof DHPrivateKey)
    {
        return new BCDHPrivateKey((DHPrivateKey)key);
    }

    throw new InvalidKeyException("key type unknown");
}

Example #11

Source File: KeyFactorySpi.java From RipplePower with Apache License 2.0

5 votes

protected Key engineTranslateKey(
    Key key)
    throws InvalidKeyException
{
    if (key instanceof DHPublicKey)
    {
        return new BCDHPublicKey((DHPublicKey)key);
    }
    else if (key instanceof DHPrivateKey)
    {
        return new BCDHPrivateKey((DHPrivateKey)key);
    }

    throw new InvalidKeyException("key type unknown");
}

Example #12

Source File: BCDHPrivateKey.java From ripple-lib-java with ISC License

5 votes

public boolean equals(
    Object o)
{
    if (!(o instanceof DHPrivateKey))
    {
        return false;
    }

    DHPrivateKey other = (DHPrivateKey)o;

    return this.getX().equals(other.getX())
        && this.getParams().getG().equals(other.getParams().getG())
        && this.getParams().getP().equals(other.getParams().getP())
        && this.getParams().getL() == other.getParams().getL();
}

Example #13

Source File: KeyAgreementSpi.java From ripple-lib-java with ISC License

5 votes

protected void engineInit(
    Key                     key,
    AlgorithmParameterSpec  params,
    SecureRandom            random) 
    throws InvalidKeyException, InvalidAlgorithmParameterException
{
    if (!(key instanceof DHPrivateKey))
    {
        throw new InvalidKeyException("DHKeyAgreement requires DHPrivateKey for initialisation");
    }
    DHPrivateKey    privKey = (DHPrivateKey)key;

    if (params != null)
    {
        if (!(params instanceof DHParameterSpec))
        {
            throw new InvalidAlgorithmParameterException("DHKeyAgreement only accepts DHParameterSpec");
        }
        DHParameterSpec p = (DHParameterSpec)params;

        this.p = p.getP();
        this.g = p.getG();
    }
    else
    {
        this.p = privKey.getParams().getP();
        this.g = privKey.getParams().getG();
    }

    this.x = this.result = privKey.getX();
}

Example #14

Source File: DHUtil.java From ripple-lib-java with ISC License

5 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }
                    
    throw new InvalidKeyException("can't identify DH private key.");
}

Example #15

Source File: DHUtil.java From ripple-lib-java with ISC License

5 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }
                    
    throw new InvalidKeyException("can't identify DH private key.");
}

Example #16

Source File: BCElGamalPrivateKey.java From RipplePower with Apache License 2.0

5 votes

public boolean equals(
    Object o)
{
    if (!(o instanceof DHPrivateKey))
    {
        return false;
    }

    DHPrivateKey other = (DHPrivateKey)o;

    return this.getX().equals(other.getX())
        && this.getParams().getG().equals(other.getParams().getG())
        && this.getParams().getP().equals(other.getParams().getP())
        && this.getParams().getL() == other.getParams().getL();
}

Example #17

Source File: DHUtil.java From RipplePower with Apache License 2.0

5 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }
                    
    throw new InvalidKeyException("can't identify DH private key.");
}

Example #18

Source File: BCDHPrivateKey.java From RipplePower with Apache License 2.0

5 votes

public boolean equals(
    Object o)
{
    if (!(o instanceof DHPrivateKey))
    {
        return false;
    }

    DHPrivateKey other = (DHPrivateKey)o;

    return this.getX().equals(other.getX())
        && this.getParams().getG().equals(other.getParams().getG())
        && this.getParams().getP().equals(other.getParams().getP())
        && this.getParams().getL() == other.getParams().getL();
}

Example #19

Source File: BCElGamalPrivateKey.java From ripple-lib-java with ISC License

5 votes

public boolean equals(
    Object o)
{
    if (!(o instanceof DHPrivateKey))
    {
        return false;
    }

    DHPrivateKey other = (DHPrivateKey)o;

    return this.getX().equals(other.getX())
        && this.getParams().getG().equals(other.getParams().getG())
        && this.getParams().getP().equals(other.getParams().getP())
        && this.getParams().getL() == other.getParams().getL();
}

Example #20

Source File: DiffieHellmanSession.java From openid4java with Apache License 2.0

5 votes

protected byte[] getDigestedZZ(String otherPublicKeyBase64)
{
    DHPublicKey  dhPublicKey  = stringToPublicKey(otherPublicKeyBase64);
    DHPrivateKey dhPrivateKey = getPrivateKey();
    BigInteger xa = dhPrivateKey.getX();
    BigInteger yb = dhPublicKey.getY();
    BigInteger p  = _dhParameterSpec.getP();

    BigInteger zz = yb.modPow(xa, p);

    return _hDigest.digest(zz.toByteArray());
}

Example #21

Source File: ToolDH.java From protools with Apache License 2.0

5 votes

/**
 * 初始化乙方密钥
 *
 * @param key
 *         甲方公钥
 *
 * @return Map 乙方密钥Map
 *
 * @throws Exception
 */
public static Map<String, Object> initKey(byte[] key) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeySpecException {

    // 解析甲方公钥
    // 转换公钥材料
    X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(key);

    // 实例化密钥工厂
    KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);

    // 产生公钥
    PublicKey pubKey = keyFactory.generatePublic(x509KeySpec);

    // 由甲方公钥构建乙方密钥
    DHParameterSpec dhParamSpec = ((DHPublicKey) pubKey).getParams();

    // 实例化密钥对生成器
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(keyFactory.getAlgorithm());

    // 初始化密钥对生成器
    keyPairGenerator.initialize(dhParamSpec);

    // 产生密钥对
    KeyPair keyPair = keyPairGenerator.genKeyPair();

    // 乙方公钥
    DHPublicKey publicKey = (DHPublicKey) keyPair.getPublic();

    // 乙方私钥
    DHPrivateKey privateKey = (DHPrivateKey) keyPair.getPrivate();

    // 将密钥对存储在Map中
    Map<String, Object> keyMap = Maps.newHashMapWithExpectedSize(2);

    keyMap.put(PUBLIC_KEY, publicKey);
    keyMap.put(PRIVATE_KEY, privateKey);

    return keyMap;
}

Example #22

Source File: DHUtil.java From BiglyBT with GNU General Public License v2.0

5 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }

    throw new InvalidKeyException("can't identify DH private key.");
}

Example #23

Source File: KeyAgreementSpi.java From RipplePower with Apache License 2.0

5 votes

protected void engineInit(
    Key                     key,
    AlgorithmParameterSpec  params,
    SecureRandom            random) 
    throws InvalidKeyException, InvalidAlgorithmParameterException
{
    if (!(key instanceof DHPrivateKey))
    {
        throw new InvalidKeyException("DHKeyAgreement requires DHPrivateKey for initialisation");
    }
    DHPrivateKey    privKey = (DHPrivateKey)key;

    if (params != null)
    {
        if (!(params instanceof DHParameterSpec))
        {
            throw new InvalidAlgorithmParameterException("DHKeyAgreement only accepts DHParameterSpec");
        }
        DHParameterSpec p = (DHParameterSpec)params;

        this.p = p.getP();
        this.g = p.getG();
    }
    else
    {
        this.p = privKey.getParams().getP();
        this.g = privKey.getParams().getG();
    }

    this.x = this.result = privKey.getX();
}

Example #24

Source File: DHUtil.java From RipplePower with Apache License 2.0

5 votes

static public AsymmetricKeyParameter generatePrivateKeyParameter(
    PrivateKey    key)
    throws InvalidKeyException
{
    if (key instanceof DHPrivateKey)
    {
        DHPrivateKey    k = (DHPrivateKey)key;

        return new DHPrivateKeyParameters(k.getX(),
            new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
    }
                    
    throw new InvalidKeyException("can't identify DH private key.");
}

Example #25

Source File: BCElGamalPrivateKey.java From RipplePower with Apache License 2.0

4 votes

BCElGamalPrivateKey(
    DHPrivateKey key)
{
    this.x = key.getX();
    this.elSpec = new ElGamalParameterSpec(key.getParams().getP(), key.getParams().getG());
}

Example #26

Source File: JCEElGamalPrivateKey.java From RipplePower with Apache License 2.0

4 votes

JCEElGamalPrivateKey(
    DHPrivateKey    key)
{
    this.x = key.getX();
    this.elSpec = new ElGamalParameterSpec(key.getParams().getP(), key.getParams().getG());
}

Example #27

Source File: DiffieHellmanSessionTest.java From openid4java with Apache License 2.0

4 votes

private static String privateKeyToString(DHPrivateKey dhPrivateKey)
{
    return new String(Base64.encodeBase64(dhPrivateKey.getX().toByteArray()));
}

Example #28

Source File: JCEElGamalPrivateKey.java From ripple-lib-java with ISC License

4 votes

JCEElGamalPrivateKey(
    DHPrivateKey    key)
{
    this.x = key.getX();
    this.elSpec = new ElGamalParameterSpec(key.getParams().getP(), key.getParams().getG());
}

Example #29

Source File: JCEDHPrivateKey.java From ripple-lib-java with ISC License

4 votes

JCEDHPrivateKey(
    DHPrivateKey    key)
{
    this.x = key.getX();
    this.dhSpec = key.getParams();
}

Example #30

Source File: JCEDHPrivateKey.java From RipplePower with Apache License 2.0

4 votes

JCEDHPrivateKey(
    DHPrivateKey    key)
{
    this.x = key.getX();
    this.dhSpec = key.getParams();
}