Examples of ElGamalParameters

Examples of org.bouncycastle.crypto.params.ElGamalParameters

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    private TestResult testEnc(
        int         size,
        BigInteger  g,
        BigInteger  p)
    {
        ElGamalParameters                dhParams = new ElGamalParameters(p, g);

        ElGamalKeyGenerationParameters   params = new ElGamalKeyGenerationParameters(new SecureRandom(), dhParams);

        ElGamalKeyPairGenerator          kpGen = new ElGamalKeyPairGenerator();
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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    {
        ElGamalParametersGenerator       pGen = new ElGamalParametersGenerator();

        pGen.init(size, 10, new SecureRandom());

        ElGamalParameters                elParams = pGen.generateParameters();

        ElGamalKeyGenerationParameters   params = new ElGamalKeyGenerationParameters(new SecureRandom(), elParams);

        ElGamalKeyPairGenerator          kpGen = new ElGamalKeyPairGenerator();
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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    public AsymmetricCipherKeyPair generateKeyPair()
    {
        BigInteger           p, g, x, y;
        int                  qLength = param.getStrength() - 1;
        ElGamalParameters    elParams = param.getParameters();

        p = elParams.getP();
        g = elParams.getG();
   
        //
        // calculate the private key
        //
        x = new BigInteger(qLength, param.getRandom());
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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            }

            break;
        }

        return new ElGamalParameters(p, g);
    }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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        if (key instanceof ElGamalPublicKey)
        {
            ElGamalPublicKey    k = (ElGamalPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }

        throw new InvalidKeyException("can't identify public key for El Gamal.");
    }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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        if (key instanceof ElGamalPrivateKey)
        {
            ElGamalPrivateKey    k = (ElGamalPrivateKey)key;

            return new ElGamalPrivateKeyParameters(k.getX(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPrivateKey)
        {
            DHPrivateKey    k = (DHPrivateKey)key;

            return new ElGamalPrivateKeyParameters(k.getX(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }
                       
        throw new InvalidKeyException("can't identify private key for El Gamal.");
    }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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            else
            {
                pGen.init(strength, 20, new SecureRandom());
            }

            ElGamalParameters p = pGen.generateParameters();

            AlgorithmParameters params;

            try
            {
                params = AlgorithmParameters.getInstance("ElGamal", "BC");
                params.init(new DHParameterSpec(p.getP(), p.getG(), l));
            }
            catch (Exception e)
            {
                throw new RuntimeException(e.getMessage());
            }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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            }

            break;
        }

        return new ElGamalParameters(p, g);
    }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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            if (params instanceof ElGamalParameterSpec)
            {
                ElGamalParameterSpec     elParams = (ElGamalParameterSpec)params;

                param = new ElGamalKeyGenerationParameters(random, new ElGamalParameters(elParams.getP(), elParams.getG()));
            }
            else
            {
                DHParameterSpec     dhParams = (DHParameterSpec)params;

                param = new ElGamalKeyGenerationParameters(random, new ElGamalParameters(dhParams.getP(), dhParams.getG(), dhParams.getL()));
            }

            engine.init(param);
            initialised = true;
        }
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Examples of org.bouncycastle.crypto.params.ElGamalParameters

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                return new DSAPublicKeyParameters(dsaK.getY(), new DSAParameters(dsaK.getP(), dsaK.getQ(), dsaK.getG()));
            case PublicKeyAlgorithmTags.ELGAMAL_ENCRYPT:
            case PublicKeyAlgorithmTags.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey elK = (ElGamalPublicBCPGKey)publicPk.getKey();

                return new ElGamalPublicKeyParameters(elK.getY(), new ElGamalParameters(elK.getP(), elK.getG()));
            default:
                throw new PGPException("unknown public key algorithm encountered");
            }
        }
        catch (PGPException e)
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