Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.DSAParameters

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

            return new DSAPublicKeyParameters(k.getY(),
                new DSAParameters(k.getParams().getP(), k.getParams().getQ(), k.getParams().getG()));
        }

        throw new InvalidKeyException("can't identify DSA public key: " + key.getClass().getName());
    }
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        if (key instanceof DSAPrivateKey)
        {
            DSAPrivateKey    k = (DSAPrivateKey)key;

            return new DSAPrivateKeyParameters(k.getX(),
                new DSAParameters(k.getParams().getP(), k.getParams().getQ(), k.getParams().getG()));
        }
                       
        throw new InvalidKeyException("can't identify DSA private key.");
    }
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            fail("NONEwithDSA failed to reset");
        }

        // lightweight test
        DSAPublicKey  key = (DSAPublicKey)kp.getPublic();
        DSAParameters params = new DSAParameters(key.getParams().getP(), key.getParams().getQ(), key.getParams().getG());
        DSAPublicKeyParameters keyParams = new DSAPublicKeyParameters(key.getY(), params);
        DSASigner signer = new DSASigner();
        ASN1Sequence derSig = ASN1Sequence.getInstance(ASN1Primitive.fromByteArray(sigBytes));

        signer.init(false, keyParams);
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        else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_dsa))
        {
            DSAParameter    params = new DSAParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
            DERInteger      derX = (DERInteger)keyInfo.getPrivateKey();

            return new DSAPrivateKeyParameters(derX.getValue(), new DSAParameters(params.getP(), params.getQ(), params.getG()));
        }
        else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_ecPublicKey))
        {
            X962Parameters      params = new X962Parameters((DERObject)keyInfo.getAlgorithmId().getParameters());
            ECDomainParameters  dParams = null;
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                 || algId.getObjectId().equals(OIWObjectIdentifiers.dsaWithSHA1))
        {
            DSAParameter    params = new DSAParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
            DERInteger      derY = (DERInteger)keyInfo.getPublicKey();

            return new DSAPublicKeyParameters(derY.getValue(), new DSAParameters(params.getP(), params.getQ(), params.getG()));
        }
        else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_ecPublicKey))
        {
            X962Parameters      params = new X962Parameters((DERObject)keyInfo.getAlgorithmId().getParameters());
            ECDomainParameters  dParams = null;
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            }

            break;
        }

        return new DSAParameters(p, q, g, new DSAValidationParameters(seed, counter));
    }
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            {
                throw new InvalidAlgorithmParameterException("parameter object not a DSAParameterSpec");
            }
            DSAParameterSpec     dsaParams = (DSAParameterSpec)params;

            param = new DSAKeyGenerationParameters(random, new DSAParameters(dsaParams.getP(), dsaParams.getQ(), dsaParams.getG()));

            engine.init(param);
            initialised = true;
        }
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            else
            {
                pGen.init(strength, 20, new SecureRandom());
            }

            DSAParameters p = pGen.generateParameters();

            AlgorithmParameters params;

            try
            {
                params = AlgorithmParameters.getInstance("DSA", "BC");
                params.init(new DSAParameterSpec(p.getP(), p.getQ(), p.getG()));
            }
            catch (Exception e)
            {
                throw new RuntimeException(e.getMessage());
            }
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        else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_dsa))
        {
            DSAParameter    params = new DSAParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
            DERInteger      derX = (DERInteger)keyInfo.getPrivateKey();

            return new DSAPrivateKeyParameters(derX.getValue(), new DSAParameters(params.getP(), params.getQ(), params.getG()));
        }
        else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_ecPublicKey))
        {
            X962Parameters      params = new X962Parameters((DERObject)keyInfo.getAlgorithmId().getParameters());
            ECDomainParameters  dParams = null;
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        BigInteger              s = new BigInteger("1089214853334067536215539335472893651470583479365");
        DSAParametersGenerator  pGen = new DSAParametersGenerator();

        pGen.init(512, 80, random);

        DSAParameters           params = pGen.generateParameters();
        DSAValidationParameters pValid = params.getValidationParameters();

        if (pValid.getCounter() != 105)
        {
            return new SimpleTestResult(false, getName() + ": Counter wrong");
        }

        if (!pValue.equals(params.getP()) || !qValue.equals(params.getQ()))
        {
            return new SimpleTestResult(false, getName() + ": p or q wrong");
        }

        DSAKeyPairGenerator         dsaKeyGen = new DSAKeyPairGenerator();
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Related Classes of org.bouncycastle.crypto.params.DSAParameters

  • com.jcraft.jsch.bc.KeyPairGenDSA
  • com.jcraft.jsch.bc.SignatureDSA
  • org.bouncycastle.crypto.generators.DSAKeyPairGenerator
  • org.bouncycastle.crypto.generators.DSAParametersGenerator
  • org.bouncycastle.crypto.signers.DSASigner
  • org.bouncycastle.crypto.test.DSATest
  • org.bouncycastle.crypto.util.PrivateKeyFactory
  • org.bouncycastle.crypto.util.PrivateKeyInfoFactory
  • org.bouncycastle.crypto.util.PublicKeyFactory
  • org.bouncycastle.jcajce.provider.asymmetric.dsa.AlgorithmParameterGeneratorSpi
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