Package org.bouncycastle.crypto.engines

Examples of org.bouncycastle.crypto.engines.ElGamalEngine

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        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }

        cipher = new BufferedAsymmetricBlockCipher(new OAEPEncoding(new ElGamalEngine(), digest, ((PSource.PSpecified)pSpec.getPSource()).getValue()));       
        paramSpec = pSpec;
    }
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    {
        String pad = Strings.toUpperCase(padding);

        if (pad.equals("NOPADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new ElGamalEngine());
        }
        else if (pad.equals("PKCS1PADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new PKCS1Encoding(new ElGamalEngine()));
        }
        else if (pad.equals("ISO9796-1PADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new ISO9796d1Encoding(new ElGamalEngine()));
        }
        else if (pad.equals("OAEPPADDING"))
        {
            initFromSpec(OAEPParameterSpec.DEFAULT);
        }
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    static public class NoPadding
        extends CipherSpi
    {
        public NoPadding()
        {
            super(new ElGamalEngine());
        }
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    static public class PKCS1v1_5Padding
        extends CipherSpi
    {
        public PKCS1v1_5Padding()
        {
            super(new PKCS1Encoding(new ElGamalEngine()));
        }
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    static public class NoPadding
        extends JCEElGamalCipher
    {
        public NoPadding()
        {
            super(new ElGamalEngine());
        }
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    static public class PKCS1v1_5Padding
        extends JCEElGamalCipher
    {
        public PKCS1v1_5Padding()
        {
            super(new PKCS1Encoding(new ElGamalEngine()));
        }
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        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }

        cipher = new BufferedAsymmetricBlockCipher(new OAEPEncoding(new ElGamalEngine(), digest, ((PSource.PSpecified)pSpec.getPSource()).getValue()));       
        paramSpec = pSpec;
    }
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    {
        String pad = Strings.toUpperCase(padding);

        if (pad.equals("NOPADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new ElGamalEngine());
        }
        else if (pad.equals("PKCS1PADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new PKCS1Encoding(new ElGamalEngine()));
        }
        else if (pad.equals("ISO9796-1PADDING"))
        {
            cipher = new BufferedAsymmetricBlockCipher(new ISO9796d1Encoding(new ElGamalEngine()));
        }
        else if (pad.equals("OAEPPADDING"))
        {
            initFromSpec(OAEPParameterSpec.DEFAULT);
        }
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        AsymmetricCipherKeyPair         pair = kpGen.generateKeyPair();

        ElGamalPublicKeyParameters      pu = (ElGamalPublicKeyParameters)pair.getPublic();
        ElGamalPrivateKeyParameters     pv = (ElGamalPrivateKeyParameters)pair.getPrivate();

        ElGamalEngine    e = new ElGamalEngine();

        e.init(true, pu);

        String  message = "This is a test";

        byte[]  pText = message.getBytes();
        byte[]  cText = e.processBlock(pText, 0, pText.length);

        e.init(false, pv);

        pText = e.processBlock(cText, 0, cText.length);

        if (!message.equals(new String(pText)))
        {
            return new SimpleTestResult(false, size + " bit test failed");
        }
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        AsymmetricCipherKeyPair         pair = kpGen.generateKeyPair();

        ElGamalPublicKeyParameters      pu = (ElGamalPublicKeyParameters)pair.getPublic();
        ElGamalPrivateKeyParameters     pv = (ElGamalPrivateKeyParameters)pair.getPrivate();

        ElGamalEngine    e = new ElGamalEngine();

        e.init(true, pu);

        String  message = "This is a test";

        byte[]  pText = message.getBytes();
        byte[]  cText = e.processBlock(pText, 0, pText.length);

        e.init(false, pv);

        pText = e.processBlock(cText, 0, cText.length);

        if (!message.equals(new String(pText)))
        {
            return new SimpleTestResult(false, this.getName() + ": generation test failed");
        }
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Related Classes of org.bouncycastle.crypto.engines.ElGamalEngine

  • org.bouncycastle.crypto.params.ElGamalPrivateKeyParameters
  • org.bouncycastle.crypto.params.ElGamalPublicKeyParameters
  • org.bouncycastle.crypto.params.ParametersWithRandom
  • org.bouncycastle.crypto.test.ElGamalTest
  • org.bouncycastle.jcajce.provider.asymmetric.elgamal.CipherSpi
  • org.bouncycastle.jcajce.provider.asymmetric.elgamal.CipherSpi$NoPadding
  • org.bouncycastle.jcajce.provider.asymmetric.elgamal.CipherSpi$PKCS1v1_5Padding
  • org.bouncycastle.jce.provider.JCEElGamalCipher
  • org.bouncycastle.jce.provider.JCEElGamalCipher$NoPadding
  • org.bouncycastle.jce.provider.JCEElGamalCipher$PKCS1v1_5Padding
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