Package org.bouncycastle2.jce.spec

Examples of org.bouncycastle2.jce.spec.ElGamalParameterSpec

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    JCEElGamalPrivateKey(
        ElGamalPrivateKeyParameters  params)
    {
        this.x = params.getX();
        this.elSpec = new ElGamalParameterSpec(params.getParameters().getP(), params.getParameters().getG());
    }
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        ObjectInputStream   in)
        throws IOException, ClassNotFoundException
    {
        x = (BigInteger)in.readObject();

        this.elSpec = new ElGamalParameterSpec((BigInteger)in.readObject(), (BigInteger)in.readObject());
    }
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                throw new InvalidAlgorithmParameterException("parameter object not a DHParameterSpec or an ElGamalParameterSpec");
            }
           
            if (params instanceof ElGamalParameterSpec)
            {
                ElGamalParameterSpec     elParams = (ElGamalParameterSpec)params;

                param = new ElGamalKeyGenerationParameters(random, new ElGamalParameters(elParams.getP(), elParams.getG()));
            }
            else
            {
                DHParameterSpec     dhParams = (DHParameterSpec)params;
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            }
            else
            {
                DHParameterSpec s = (DHParameterSpec)paramSpec;
               
                this.currentSpec = new ElGamalParameterSpec(s.getP(), s.getG());
            }
        }
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        {
            try
            {
                ElGamalParameter elP = new ElGamalParameter((ASN1Sequence)ASN1Object.fromByteArray(params));

                currentSpec = new ElGamalParameterSpec(elP.getP(), elP.getG());
            }
            catch (ClassCastException e)
            {
                throw new IOException("Not a valid ElGamal Parameter encoding.");
            }
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            bcpgKey = new DSAPublicBCPGKey(dP.getP(), dP.getQ(), dP.getG(), dK.getY());
        }
        else if (pubKey instanceof ElGamalPublicKey)
        {
            ElGamalPublicKey        eK = (ElGamalPublicKey)pubKey;
            ElGamalParameterSpec    eS = eK.getParameters();

            bcpgKey = new ElGamalPublicBCPGKey(eS.getP(), eS.getG(), eK.getY());
        }
        else
        {
            throw new PGPException("unknown key class");
        }
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                return fact.generatePublic(dsaSpec);
            case ELGAMAL_ENCRYPT:
            case ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey    elK = (ElGamalPublicBCPGKey)publicPk.getKey();
                ElGamalPublicKeySpec    elSpec = new ElGamalPublicKeySpec(elK.getY(), new ElGamalParameterSpec(elK.getP(), elK.getG()));
               
                fact = KeyFactory.getInstance("ElGamal", provider);
               
                return fact.generatePublic(elSpec);
            default:
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                return new PGPPrivateKey(fact.generatePrivate(dsaPrivSpec), this.getKeyID());
            case PGPPublicKey.ELGAMAL_ENCRYPT:
            case PGPPublicKey.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey    elPub = (ElGamalPublicBCPGKey)pubPk.getKey();
                ElGamalSecretBCPGKey    elPriv = new ElGamalSecretBCPGKey(in);
                ElGamalPrivateKeySpec   elSpec = new ElGamalPrivateKeySpec(elPriv.getX(), new ElGamalParameterSpec(elPub.getP(), elPub.getG()));
           
                fact = KeyFactory.getInstance("ElGamal", provider);
           
                return new PGPPrivateKey(fact.generatePrivate(elSpec), this.getKeyID());
            default:
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        this.algorithm = algorithm;
        this.d = spec.getD();

        if (spec.getParams() != null) // can be null if implicitlyCA
        {
            ECCurve curve = spec.getParams().getCurve();
            EllipticCurve ellipticCurve;

            ellipticCurve = EC5Util.convertCurve(curve, spec.getParams().getSeed());

            this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec.getParams());
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        {
            params = new X962Parameters(DERNull.INSTANCE);
        }
        else
        {
            ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());

            X9ECParameters ecP = new X9ECParameters(
                curve,
                EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
                ecSpec.getOrder(),
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Related Classes of org.bouncycastle2.jce.spec.ElGamalParameterSpec

  • org.bouncycastle2.asn1.ASN1InputStream
  • org.bouncycastle2.asn1.ASN1Sequence
  • org.bouncycastle2.asn1.cryptopro.GOST3410PublicKeyAlgParameters
  • org.bouncycastle2.asn1.DERObjectIdentifier
  • org.bouncycastle2.asn1.DEROctetString
  • org.bouncycastle2.asn1.pkcs.RSAPrivateKeyStructure
  • org.bouncycastle2.asn1.x509.RSAPublicKeyStructure
  • org.bouncycastle2.crypto.BufferedBlockCipher
  • org.bouncycastle2.crypto.CipherParameters
  • org.bouncycastle2.crypto.digests.SHA1Digest
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