Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.GOST3410Parameters

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        else
        {
            pGen.init(strength, 2, new SecureRandom());
        }

        GOST3410Parameters p = pGen.generateParameters();

        AlgorithmParameters params;

        try
        {
            params = AlgorithmParameters.getInstance("GOST3410", BouncyCastleProvider.PROVIDER_NAME);
            params.init(new GOST3410ParameterSpec(new GOST3410PublicKeyParameterSetSpec(p.getP(), p.getQ(), p.getA())));
        }
        catch (Exception e)
        {
            throw new RuntimeException(e.getMessage());
        }
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        GOST3410ParameterSpec gParams,
        SecureRandom random)
    {
        GOST3410PublicKeyParameterSetSpec spec = gParams.getPublicKeyParameters();

        param = new GOST3410KeyGenerationParameters(random, new GOST3410Parameters(spec.getP(), spec.getQ(), spec.getA()));

        engine.init(param);

        initialised = true;
        gost3410Params = gParams;
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            }
            p = pq[0];  q = pq[1];
            a = procedure_C(p, q);
            //System.out.println("p:"+p.toString(16)+"\n"+"q:"+q.toString(16)+"\n"+"a:"+a.toString(16));
            //System.out.println("p:"+p+"\n"+"q:"+q+"\n"+"a:"+a);
            return new GOST3410Parameters(p, q, a, new GOST3410ValidationParameters(x0, c));
        }
        else
        {
            x0L = init_random.nextLong();
            cL  = init_random.nextLong();

            switch(size)
            {
            case 512: 
                procedure_Aa(x0L, cL, pq, 512);
                break;
            case 1024:
                procedure_Bb(x0L, cL, pq);
                break;
            default:
                throw new IllegalStateException("Ooops! key size 512 or 1024 bit.");
            }
            p = pq[0];  q = pq[1];
            a = procedure_C(p, q);
            //System.out.println("p:"+p.toString(16)+"\n"+"q:"+q.toString(16)+"\n"+"a:"+a.toString(16));
            //System.out.println("p:"+p+"\n"+"q:"+q+"\n"+"a:"+a);
            return new GOST3410Parameters(p, q, a, new GOST3410ValidationParameters(x0L, cL));
        }
    }
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        }

        public AsymmetricCipherKeyPair generateKeyPair()
        {
            BigInteger      p, q, a, x, y;
            GOST3410Parameters   GOST3410Params = param.getParameters();
            SecureRandom    random = param.getRandom();

            q = GOST3410Params.getQ();
            p = GOST3410Params.getP();
            a = GOST3410Params.getA();

            do
            {
                x = new BigInteger(256, random);
            }
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            GOST3410ParameterSpec gParams,
            SecureRandom          random)
        {
            GOST3410PublicKeyParameterSetSpec spec = gParams.getPublicKeyParameters();
           
            param = new GOST3410KeyGenerationParameters(random, new GOST3410Parameters(spec.getP(), spec.getQ(), spec.getA()));
           
            engine.init(param);
           
            initialised = true;
            gost3410Params = gParams;
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            else
            {
                pGen.init(strength, 2, new SecureRandom());
            }
           
            GOST3410Parameters p = pGen.generateParameters();
           
            AlgorithmParameters params;
           
            try
            {
                params = AlgorithmParameters.getInstance("GOST3410", "BC");
                params.init(new GOST3410ParameterSpec(new GOST3410PublicKeyParameterSetSpec(p.getP(), p.getQ(), p.getA())));
            }
            catch (Exception e)
            {
                throw new RuntimeException(e.getMessage());
            }
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        {
            GOST3410PublicKey          k = (GOST3410PublicKey)key;
            GOST3410PublicKeyParameterSetSpec p = k.getParameters().getPublicKeyParameters();
           
            return new GOST3410PublicKeyParameters(k.getY(),
                new GOST3410Parameters(p.getP(), p.getQ(), p.getA()));
        }

        throw new InvalidKeyException("can't identify GOST3410 public key: " + key.getClass().getName());
    }
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        {
            GOST3410PrivateKey         k = (GOST3410PrivateKey)key;
            GOST3410PublicKeyParameterSetSpec p = k.getParameters().getPublicKeyParameters();
           
            return new GOST3410PrivateKeyParameters(k.getX(),
                new GOST3410Parameters(p.getP(), p.getQ(), p.getA()));
        }

        throw new InvalidKeyException("can't identify GOST3410 private key.");
    }
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        }

        public AsymmetricCipherKeyPair generateKeyPair()
        {
            BigInteger      p, q, a, x, y;
            GOST3410Parameters   GOST3410Params = param.getParameters();
            SecureRandom    random = param.getRandom();

            q = GOST3410Params.getQ();
            p = GOST3410Params.getP();
            a = GOST3410Params.getA();

            do
            {
                x = new BigInteger(256, random);
            }
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            }
            p = pq[0];  q = pq[1];
            a = procedure_C(p, q);
            //System.out.println("p:"+p.toString(16)+"\n"+"q:"+q.toString(16)+"\n"+"a:"+a.toString(16));
            //System.out.println("p:"+p+"\n"+"q:"+q+"\n"+"a:"+a);
            return new GOST3410Parameters(p, q, a, new GOST3410ValidationParameters(x0, c));
        }
        else
        {
            x0L = init_random.nextLong();
            cL  = init_random.nextLong();

            switch(size)
            {
            case 512: 
                procedure_Aa(x0L, cL, pq, 512);
                break;
            case 1024:
                procedure_Bb(x0L, cL, pq);
                break;
            default:
                throw new IllegalStateException("Ooops! key size 512 or 1024 bit.");
            }
            p = pq[0];  q = pq[1];
            a = procedure_C(p, q);
            //System.out.println("p:"+p.toString(16)+"\n"+"q:"+q.toString(16)+"\n"+"a:"+a.toString(16));
            //System.out.println("p:"+p+"\n"+"q:"+q+"\n"+"a:"+a);
            return new GOST3410Parameters(p, q, a, new GOST3410ValidationParameters(x0L, cL));
        }
    }
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Related Classes of org.bouncycastle.crypto.params.GOST3410Parameters

  • org.bouncycastle.crypto.generators.GOST3410KeyPairGenerator
  • org.bouncycastle.crypto.generators.GOST3410ParametersGenerator
  • org.bouncycastle.jcajce.provider.asymmetric.gost.AlgorithmParameterGeneratorSpi
  • org.bouncycastle.jcajce.provider.asymmetric.gost.KeyPairGeneratorSpi
  • org.bouncycastle.jcajce.provider.asymmetric.util.GOST3410Util
  • org.bouncycastle.jce.provider.GOST3410Util
  • org.bouncycastle.jce.provider.JDKAlgorithmParameterGenerator$GOST3410
  • org.bouncycastle.jce.provider.JDKKeyPairGenerator$GOST3410
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