Package org.bouncycastle.crypto.engines

Examples of org.bouncycastle.crypto.engines.RSAEngine

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    RSAPrivateCrtKeyParameters RSAprivKey =  new RSAPrivateCrtKeyParameters
            (intModulus, intPubExponent, intPrivExponent, intPrimeP,
            intPrimeQ, intPrimeExponentP, intPrimeExponentQ, intCrtCoefficient);
    byte[] toDecrypt = Hex.decode(input);
    cipher = new PKCS1Encoding(new RSAEngine());
    cipher.init(false, RSAprivKey);
    byte[] decByte = cipher.processBlock(toDecrypt, 0, toDecrypt.length);
    String decString = new String(decByte);
    return decString;
  }
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   */
  public static byte[] encryptCEK(final RSAPublicKey pub, final SecretKey cek)
    throws RuntimeException {

    try {
      AsymmetricBlockCipher engine = new RSAEngine();

      // JCA identifier RSA/ECB/OAEPWithSHA-1AndMGF1Padding ?
      OAEPEncoding cipher = new OAEPEncoding(engine);

      BigInteger mod = pub.getModulus();
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  public static SecretKey decryptCEK(final RSAPrivateKey priv,
                               final byte[] encryptedCEK)
    throws RuntimeException {

    try {
      RSAEngine engine = new RSAEngine();
      OAEPEncoding cipher = new OAEPEncoding(engine);
     
      BigInteger mod = priv.getModulus();
      BigInteger exp = priv.getPrivateExponent();
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    {
        String pad = Strings.toUpperCase(padding);

        if (pad.equals("NOPADDING"))
        {
            cipher = new RSAEngine();
        }
        else if (pad.equals("PKCS1PADDING"))
        {
            cipher = new PKCS1Encoding(new RSAEngine());
        }
        else if (pad.equals("OAEPPADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine());
        }
        else if (pad.equals("ISO9796-1PADDING"))
        {
            cipher = new ISO9796d1Encoding(new RSAEngine());
        }
        else if (pad.equals("OAEPWITHMD5ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new MD5Digest());
        }
        else if (pad.equals("OAEPWITHSHA1ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new SHA1Digest());
        }
        else if (pad.equals("OAEPWITHSHA224ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new SHA224Digest());
        }
        else if (pad.equals("OAEPWITHSHA256ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new SHA256Digest());
        }
        else if (pad.equals("OAEPWITHSHA384ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new SHA384Digest());
        }
        else if (pad.equals("OAEPWITHSHA512ANDMGF1PADDING"))
        {
            cipher = new OAEPEncoding(new RSAEngine(), new SHA512Digest());
        }
        else
        {
            throw new NoSuchPaddingException(padding + " unavailable with RSA.");
        }
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    static public class NoPadding
        extends JCERSACipher
    {
        public NoPadding()
        {
            super(new RSAEngine());
        }
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    static public class PKCS1v1_5Padding
        extends JCERSACipher
    {
        public PKCS1v1_5Padding()
        {
            super(new PKCS1Encoding(new RSAEngine()));
        }
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    static public class PKCS1v1_5Padding_PrivateOnly
        extends JCERSACipher
    {
        public PKCS1v1_5Padding_PrivateOnly()
        {
            super(false, true, new PKCS1Encoding(new RSAEngine()));
        }
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    static public class PKCS1v1_5Padding_PublicOnly
        extends JCERSACipher
    {
        public PKCS1v1_5Padding_PublicOnly()
        {
            super(true, false, new PKCS1Encoding(new RSAEngine()));
        }
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    static public class OAEPPadding
        extends JCERSACipher
    {
        public OAEPPadding()
        {
            super(new OAEPEncoding(new RSAEngine()));
        }
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    static public class ISO9796d1Padding
        extends JCERSACipher
    {
        public ISO9796d1Padding()
        {
            super(new ISO9796d1Encoding(new RSAEngine()));
        }
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Related Classes of org.bouncycastle.crypto.engines.RSAEngine

  • ants.p2p.query.security.PublicHeader
  • com.aelitis.azureus.core.clientmessageservice.secure.impl.SecureMessageServiceClientHelper
  • com.jcraft.jsch.bc.SignatureRSA
  • Cryptography
  • org.bouncycastle.crypto.params.RSAPrivateCrtKeyParameters
  • org.bouncycastle.crypto.test.ISO9796Test
  • org.bouncycastle.crypto.test.OAEPTest$OAEPTester
  • org.bouncycastle.crypto.test.PSSTest
  • org.bouncycastle.crypto.test.RSATest
  • org.bouncycastle.jce.provider.JCERSACipher
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