Examples of DSAPublicKeyParameters

Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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            {
                DSAParameter params = DSAParameter.getInstance(de.toASN1Primitive());
                parameters = new DSAParameters(params.getP(), params.getQ(), params.getG());
            }

            return new DSAPublicKeyParameters(derY.getValue(), parameters);
        }
        else if (algId.getAlgorithm().equals(X9ObjectIdentifiers.id_ecPublicKey))
        {
            X962Parameters params = new X962Parameters(
                (ASN1Primitive)algId.getParameters());
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new RSAPublicKey(pub.getModulus(), pub.getExponent()));
        }
        else if (publicKey instanceof DSAPublicKeyParameters)
        {
            DSAPublicKeyParameters pub = (DSAPublicKeyParameters)publicKey;

            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa), new ASN1Integer(pub.getY()));
        }
        else if (publicKey instanceof ECPublicKeyParameters)
        {
            ECPublicKeyParameters pub = (ECPublicKeyParameters)publicKey;
            ECDomainParameters domainParams = pub.getParameters();
            ASN1Encodable      params;

            // TODO: need to handle named curves
            if (domainParams == null)
            {
                params = new X962Parameters(DERNull.INSTANCE);      // Implicitly CA
            }
            else
            {
                X9ECParameters ecP = new X9ECParameters(
                    domainParams.getCurve(),
                    domainParams.getG(),
                    domainParams.getN(),
                    domainParams.getH(),
                    domainParams.getSeed());

                params = new X962Parameters(ecP);
            }

            ASN1OctetString p = (ASN1OctetString)new X9ECPoint(pub.getQ()).toASN1Primitive();

            return new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets());
        }
        else
        {
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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        BigInteger x = generatePrivateKey(dsaParams.getQ(), param.getRandom());
        BigInteger y = calculatePublicKey(dsaParams.getP(), dsaParams.getG(), x);

        return new AsymmetricCipherKeyPair(
            new DSAPublicKeyParameters(y, dsaParams),
            new DSAPrivateKeyParameters(x, dsaParams));
    }
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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            engine.init(param);
            initialised = true;
        }

        AsymmetricCipherKeyPair pair = engine.generateKeyPair();
        DSAPublicKeyParameters pub = (DSAPublicKeyParameters)pair.getPublic();
        DSAPrivateKeyParameters priv = (DSAPrivateKeyParameters)pair.getPrivate();

        return new KeyPair(new BCDSAPublicKey(pub),
            new BCDSAPrivateKey(priv));
    }
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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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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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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        }

        // 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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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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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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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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                engine.init(param);
                initialised = true;
            }

            AsymmetricCipherKeyPair   pair = engine.generateKeyPair();
            DSAPublicKeyParameters     pub = (DSAPublicKeyParameters)pair.getPublic();
            DSAPrivateKeyParameters priv = (DSAPrivateKeyParameters)pair.getPrivate();

            return new KeyPair(new JDKDSAPublicKey(pub),
                               new JDKDSAPrivateKey(priv));
        }
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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    sha=new SHA1();
    sha.init();
  }    
  public void setPubKey(byte[] y, byte[] p, byte[] q, byte[] g) throws Exception{
    //System.out.println(this+".setPubKey()");
    DSAPublicKeyParameters pubKey=
      new DSAPublicKeyParameters(new BigInteger(y),
         new DSAParameters(new BigInteger(p),
               new BigInteger(q),
               new BigInteger(g)
               ));
    signature.init(false, pubKey);
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Examples of org.bouncycastle.crypto.params.DSAPublicKeyParameters

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    kpgen.init( DSAKeyGenPara );
    AsymmetricCipherKeyPair keyPair=kpgen.generateKeyPair();
    DSAPrivateKeyParameters prvKey=
      (DSAPrivateKeyParameters)keyPair.getPrivate();
    DSAPublicKeyParameters pubKey=
      (DSAPublicKeyParameters)keyPair.getPublic();

    x=prvKey.getX().toByteArray();
    y=pubKey.getY().toByteArray();

    p=dsap.getP().toByteArray();
    q=dsap.getQ().toByteArray();
    g=dsap.getG().toByteArray();
  }
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