Package java.security.interfaces

Examples of java.security.interfaces.RSAPublicKey

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                } else {
                    return -1;
                }
            } else if (a instanceof RSAPublicKey) {
                if (b instanceof RSAPublicKey) {
                    RSAPublicKey da = (RSAPublicKey) a;
                    RSAPublicKey db = (RSAPublicKey) b;
                    int r = da.getPublicExponent().compareTo(db.getPublicExponent());
                    if (r != 0) {
                        return r;
                    }
                    return da.getModulus().compareTo(db.getModulus());
                } else {
                    return -1;
                }
            } else {
                throw new IllegalArgumentException("Only RSA and DAS keys are supported.");
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    byte[] publicExponent = readElement(dis);
    byte[] modulus = readElement(dis);
   
    KeySpec spec = new RSAPublicKeySpec(new BigInteger(modulus), new BigInteger(publicExponent));
    KeyFactory keyFactory = KeyFactory.getInstance("RSA", BouncyCastleProvider.PROVIDER_NAME);
    RSAPublicKey pubKey = (RSAPublicKey) keyFactory.generatePublic(spec);
 
    return pubKey;
  }
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  }

  public static String encryptWithSSHPublicKey(String sshPublicKey, String content) {
    String returnString = null;
    try {
          RSAPublicKey publicKey = readKey(sshPublicKey);
          Cipher cipher = Cipher.getInstance("RSA/None/PKCS1Padding", BouncyCastleProvider.PROVIDER_NAME);
          cipher.init(Cipher.ENCRYPT_MODE, publicKey , new SecureRandom());
          byte[] encrypted = cipher.doFinal(content.getBytes());
          returnString = Base64.encodeBase64String(encrypted);
    } catch (Exception e) {}
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       {
               return new X509EncodedKeySpec(key.getEncoded());
       }
       else if (spec.isAssignableFrom(RSAPublicKeySpec.class) && key instanceof RSAPublicKey)
       {
            RSAPublicKey    k = (RSAPublicKey)key;

            return new RSAPublicKeySpec(k.getModulus(), k.getPublicExponent());
       }
       else if (spec.isAssignableFrom(RSAPrivateKeySpec.class) && key instanceof RSAPrivateKey)
       {
            RSAPrivateKey    k = (RSAPrivateKey)key;

            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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                write(dos, dsa.getParams().getG());
                write(dos, dsa.getY());
                dos.close();
                return base64Encode(baos.toByteArray());
            } else if (key instanceof RSAKey) {
                RSAPublicKey rsa = (RSAPublicKey) key;
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                DataOutputStream dos = new DataOutputStream(baos);
                write(dos, "ssh-rsa");
                write(dos, rsa.getPublicExponent());
                write(dos, rsa.getModulus());
                dos.close();
                return base64Encode(baos.toByteArray());
            } else {
                throw new FailedLoginException("Unsupported key type " + key.getClass().toString());
            }
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                } else {
                    return -1;
                }
            } else if (a instanceof RSAPublicKey) {
                if (b instanceof RSAPublicKey) {
                    RSAPublicKey da = (RSAPublicKey) a;
                    RSAPublicKey db = (RSAPublicKey) b;
                    int r = da.getPublicExponent().compareTo(db.getPublicExponent());
                    if (r != 0) {
                        return r;
                    }
                    return da.getModulus().compareTo(db.getModulus());
                } else {
                    return -1;
                }
            } else {
                throw new IllegalArgumentException("Only RSA and DAS keys are supported.");
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        String algorithm = publicKey.getAlgorithm();

        abstractOutputProcessor.createStartElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_KeyValue, true, null);

        if ("RSA".equals(algorithm)) {
            RSAPublicKey rsaPublicKey = (RSAPublicKey) publicKey;
            abstractOutputProcessor.createStartElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_RSAKeyValue, false, null);
            abstractOutputProcessor.createStartElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_Modulus, false, null);
            abstractOutputProcessor.createCharactersAndOutputAsEvent(outputProcessorChain, new Base64(76, new byte[]{'\n'}).encodeToString(rsaPublicKey.getModulus().toByteArray()));
            abstractOutputProcessor.createEndElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_Modulus);
            abstractOutputProcessor.createStartElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_Exponent, false, null);
            abstractOutputProcessor.createCharactersAndOutputAsEvent(outputProcessorChain, new Base64(76, new byte[]{'\n'}).encodeToString(rsaPublicKey.getPublicExponent().toByteArray()));
            abstractOutputProcessor.createEndElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_Exponent);
            abstractOutputProcessor.createEndElementAndOutputAsEvent(outputProcessorChain, XMLSecurityConstants.TAG_dsig_RSAKeyValue);
        } else if ("DSA".equals(algorithm)) {
            DSAPublicKey dsaPublicKey = (DSAPublicKey) publicKey;
            BigInteger j = dsaPublicKey.getParams().getP().subtract(BigInteger.ONE).divide(dsaPublicKey.getParams().getQ());
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    {
        BCPGKey bcpgKey;

        if (pubKey instanceof RSAPublicKey)
        {
            RSAPublicKey    rK = (RSAPublicKey)pubKey;

            bcpgKey = new RSAPublicBCPGKey(rK.getModulus(), rK.getPublicExponent());
        }
        else if (pubKey instanceof DSAPublicKey)
        {
            DSAPublicKey    dK = (DSAPublicKey)pubKey;
            DSAParams       dP = dK.getParams();
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            gen.initialize(1024, new SecureRandom());

            KeyPair         pair = gen.generateKeyPair();
            RSAPrivateKey   privKey = (RSAPrivateKey)pair.getPrivate();
            RSAPublicKey    pubKey = (RSAPublicKey)pair.getPublic();
            BigInteger      modulus = privKey.getModulus();
            BigInteger      privateExponent = privKey.getPrivateExponent();
           

            //
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  /*
   * Verify proxy
   */
  private void verify() throws GeneralSecurityException
  {
     RSAPublicKey pkey = (RSAPublicKey) this.certificates[0].getPublicKey();
     RSAPrivateKey prkey = (RSAPrivateKey) userKey;
   
     if (!pkey.getModulus().equals(prkey.getModulus())) {
       throw new GeneralSecurityException(
         "Certificate and private key specified do not match");
     }
 
  }
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