Package java.security.interfaces

Examples of java.security.interfaces.RSAPrivateCrtKey

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            BigInteger x = dsaKey.getX();
            BigInteger y = q.modPow(x, p);
            DSAPublicKeySpec keySpec = new DSAPublicKeySpec(y, p, q, g);
            return KeyFactory.getInstance("DSA").generatePublic(keySpec);
        } else if (key instanceof RSAPrivateCrtKey) {
            RSAPrivateCrtKey rsaKey = (RSAPrivateCrtKey) key;
            BigInteger modulus = rsaKey.getModulus();
            BigInteger exponent = rsaKey.getPublicExponent();
            RSAPublicKeySpec keySpec = new RSAPublicKeySpec(modulus, exponent);
            return KeyFactory.getInstance("RSA").generatePublic(keySpec);
        } else {
            throw new KeyException("Private key was not a DSA or RSA key");
        }
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  public void init(int keySize) throws Exception {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
    keyGen.initialize(keySize, new SecureRandom());
    KeyPair pair = keyGen.generateKeyPair();
    RSAPublicKey pubKey = (RSAPublicKey) pair.getPublic();
    RSAPrivateCrtKey prvKey = (RSAPrivateCrtKey) pair.getPrivate();

    _d  = prvKey.getPrivateExponent().toByteArray();
    _e  = pubKey.getPublicExponent().toByteArray();
    _n  = prvKey.getModulus().toByteArray();
    _c  = prvKey.getCrtCoefficient().toByteArray();
    _ep = prvKey.getPrimeExponentP().toByteArray();
    _eq = prvKey.getPrimeExponentQ().toByteArray();
    _p  = prvKey.getPrimeP().toByteArray();
    _q  = prvKey.getPrimeQ().toByteArray();
  }
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      Pems.x509Certificate(Payloads.newStringPayload(CERTIFICATE), CertificateFactory.getInstance("X.509"));
   }

   @Test
   public void testPrivateKeySpecPem() throws IOException, InvalidKeySpecException, NoSuchAlgorithmException {
      RSAPrivateCrtKey key = (RSAPrivateCrtKey) KeyFactory.getInstance("RSA").generatePrivate(
            Pems.privateKeySpec(Payloads.newStringPayload(PRIVATE_KEY)));
      String encoded = Pems.pem(key);
      assertEquals(encoded, PRIVATE_KEY.replaceAll("\n", ls));
   }
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                try {
                    final Object pemObject = pemReader.readObject();
                    if (pemObject instanceof KeyPair) {
                        return (KeyPair)pemObject;
                    } else if (pemObject instanceof RSAPrivateCrtKey) {
                        final RSAPrivateCrtKey privateCrtKey = (RSAPrivateCrtKey)pemObject;
                        final RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(privateCrtKey.getPublicExponent()
                                , privateCrtKey.getModulus());
                        final KeyFactory keyFactory = KeyFactory.getInstance(privateCrtKey.getAlgorithm());
                        final PublicKey publicKey = keyFactory.generatePublic(publicKeySpec);
                        return new KeyPair(publicKey, privateCrtKey);
                    } else {
                        throw new ArchiverException("Could not load the public/private key from invalid PEM file");
                    }
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    static RSAKeyParameters generatePrivateKeyParameter(
        RSAPrivateKey    key)
    {
        if (key instanceof RSAPrivateCrtKey)
        {
            RSAPrivateCrtKey    k = (RSAPrivateCrtKey)key;

            return new RSAPrivateCrtKeyParameters(k.getModulus(),
                k.getPublicExponent(), k.getPrivateExponent(),
                k.getPrimeP(), k.getPrimeQ(), k.getPrimeExponentP(),                            k.getPrimeExponentQ(), k.getCrtCoefficient());
        }
        else
        {
            RSAPrivateKey    k = key;

            return new RSAKeyParameters(true, k.getModulus(), k.getPrivateExponent());
        }
    }
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        if (!(o instanceof RSAPrivateCrtKey))
        {
            return false;
        }

        RSAPrivateCrtKey key = (RSAPrivateCrtKey)o;

        return this.getModulus().equals(key.getModulus())
         && this.getPublicExponent().equals(key.getPublicExponent())
         && this.getPrivateExponent().equals(key.getPrivateExponent())
         && this.getPrimeP().equals(key.getPrimeP())
         && this.getPrimeQ().equals(key.getPrimeQ())
         && this.getPrimeExponentP().equals(key.getPrimeExponentP())
         && this.getPrimeExponentQ().equals(key.getPrimeExponentQ())
         && this.getCrtCoefficient().equals(key.getCrtCoefficient());
    }
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            return new RSAPrivateKeySpec(k.getModulus(), k.getPrivateExponent());
       }
       else if (spec.isAssignableFrom(RSAPrivateCrtKeySpec.class) && key instanceof RSAPrivateCrtKey)
       {
            RSAPrivateCrtKey    k = (RSAPrivateCrtKey)key;

            return new RSAPrivateCrtKeySpec(
                            k.getModulus(), k.getPublicExponent(),
                            k.getPrivateExponent(),
                            k.getPrimeP(), k.getPrimeQ(),
                            k.getPrimeExponentP(), k.getPrimeExponentQ(),
                            k.getCrtCoefficient());
       }
       else if (spec.isAssignableFrom(DHPrivateKeySpec.class) && key instanceof DHPrivateKey)
       {
           DHPrivateKey k = (DHPrivateKey)key;
          
           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;
          
           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

       throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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        if (obj instanceof RSAPrivateCrtKey)
        {
            type = "RSA PRIVATE KEY";

            RSAPrivateCrtKey k = (RSAPrivateCrtKey)obj;

            RSAPrivateKeyStructure keyStruct = new RSAPrivateKeyStructure(
                k.getModulus(),
                k.getPublicExponent(),
                k.getPrivateExponent(),
                k.getPrimeP(),
                k.getPrimeQ(),
                k.getPrimeExponentP(),
                k.getPrimeExponentQ(),
                k.getCrtCoefficient());

            // convert to bytearray
            keyData = keyStruct.getEncoded();
        }
        else if (obj instanceof DSAPrivateKey)
        {
            type = "DSA PRIVATE KEY";

            DSAPrivateKey       k = (DSAPrivateKey)obj;
            DSAParams           p = k.getParams();
            ASN1EncodableVector v = new ASN1EncodableVector();

            v.add(new DERInteger(0));
            v.add(new DERInteger(p.getP()));
            v.add(new DERInteger(p.getQ()));
            v.add(new DERInteger(p.getG()));

            BigInteger x = k.getX();
            BigInteger y = p.getG().modPow(x, p.getP());

            v.add(new DERInteger(y));
            v.add(new DERInteger(x));
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        switch (pubKey.getAlgorithm())
        {
        case PGPPublicKey.RSA_ENCRYPT:
        case PGPPublicKey.RSA_SIGN:
        case PGPPublicKey.RSA_GENERAL:
            RSAPrivateCrtKey    rsK = (RSAPrivateCrtKey)privKey.getKey();
           
            secKey = new RSASecretBCPGKey(rsK.getPrivateExponent(), rsK.getPrimeP(), rsK.getPrimeQ());
            break;
        case PGPPublicKey.DSA:
            DSAPrivateKey       dsK = (DSAPrivateKey)privKey.getKey();
           
            secKey = new DSASecretBCPGKey(dsK.getX());
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   * @return
   */
  private String getRSAPrivateKeyAsNetFormat(byte[] key) {
    try {
        StringBuffer buff = new StringBuffer(1024);
        RSAPrivateCrtKey pvkKey = getRSAPrivateCrtKey(key);
          buff.append("<RSAKeyValue>");
          buff.append("<Modulus>"+ b64encode(removeMSZero(pvkKey.getModulus().toByteArray()))+ "</Modulus>");
          buff.append("<Exponent>"+ b64encode(removeMSZero(pvkKey.getPublicExponent().toByteArray())) + "</Exponent>");//公用指数
          buff.append("<P>"+ b64encode(removeMSZero(pvkKey.getPrimeP().toByteArray()))+ "</P>");
          buff.append("<Q>"+ b64encode(removeMSZero(pvkKey.getPrimeQ().toByteArray()))+ "</Q>");
          buff.append("<DP>"+ b64encode(removeMSZero(pvkKey.getPrimeExponentP().toByteArray())) + "</DP>");
          buff.append("<DQ>"+ b64encode(removeMSZero(pvkKey.getPrimeExponentQ().toByteArray())) + "</DQ>");
          buff.append("<InverseQ>"+ b64encode(removeMSZero(pvkKey.getCrtCoefficient().toByteArray())) + "</InverseQ>");
          buff.append("<D>"+ b64encode(removeMSZero(pvkKey.getPrivateExponent().toByteArray())) + "</D>");
          buff.append("</RSAKeyValue>");
          return buff.toString().replaceAll("[\t\n\r]", "");
      } catch (Exception e) {
          System.err.println(e);
          return null;
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