Package org.bouncycastle.asn1.cryptopro

Examples of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters

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        try
        {
            ASN1Sequence seq = (ASN1Sequence)ASN1Primitive.fromByteArray(params);

            this.currentSpec = GOST3410ParameterSpec.fromPublicKeyAlg(
                new GOST3410PublicKeyAlgParameters(seq));
        }
        catch (ClassCastException e)
        {
            throw new IOException("Not a valid GOST3410 Parameter encoding.");
        }
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         */
        protected byte[] engineGetEncoded()
        {
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            DEROutputStream         dOut = new DEROutputStream(bOut);
            GOST3410PublicKeyAlgParameters       gost3410P = new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(currentSpec.getPublicKeyParamSetOID()), new DERObjectIdentifier(currentSpec.getDigestParamSetOID()), new DERObjectIdentifier(currentSpec.getEncryptionParamSetOID()));
           
            try
            {
                dOut.writeObject(gost3410P);
                dOut.close();
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            try
            {
                ASN1Sequence seq = (ASN1Sequence) ASN1Object.fromByteArray(params);

                this.currentSpec = GOST3410ParameterSpec.fromPublicKeyAlg(
                    new GOST3410PublicKeyAlgParameters(seq));
            }
            catch (ClassCastException e)
            {
                throw new IOException("Not a valid GOST3410 Parameter encoding.");
            }
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            for (int i = 0; i != y.length; i++)
            {
                y[i] = keyEnc[64 - 1 - i];
            }

            gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
           
            ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));

            ECCurve curve = spec.getCurve();
            EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());
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            {
                params = gostParams;
            }
            else
            {
                params = new GOST3410PublicKeyAlgParameters(
                                   ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec)ecSpec).getName()),
                                   CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
            }

            BigInteger      bX = this.q.getX().toBigInteger();
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    }

    JDKGOST3410PublicKey(
        SubjectPublicKeyInfo    info)
    {
        GOST3410PublicKeyAlgParameters    params = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
        DEROctetString                    derY;

        try
        {
            derY = (DEROctetString)info.getPublicKey();
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        if (gost3410Spec instanceof GOST3410ParameterSpec)
        {  
            if (gost3410Spec.getEncryptionParamSetOID() != null)
            {
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94, new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()), new DERObjectIdentifier(gost3410Spec.getDigestParamSetOID()), new DERObjectIdentifier(gost3410Spec.getEncryptionParamSetOID())).getDERObject()), new DEROctetString(keyBytes));
            }
            else
            {
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94, new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()), new DERObjectIdentifier(gost3410Spec.getDigestParamSetOID())).getDERObject()), new DEROctetString(keyBytes));
            }
        }
        else
        {
            info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94), new DEROctetString(keyBytes));
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    }

    JDKGOST3410PrivateKey(
        PrivateKeyInfo  info)
    {
        GOST3410PublicKeyAlgParameters    params = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
        DEROctetString      derX = (DEROctetString)info.getPrivateKey();
        byte[]              keyEnc = derX.getOctets();
        byte[]              keyBytes = new byte[keyEnc.length];
       
        for (int i = 0; i != keyEnc.length; i++)
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            keyBytes[i] = keyEnc[keyEnc.length - 1 - i]; // must be little endian
        }
       
        if (gost3410Spec instanceof GOST3410ParameterSpec)
        {
            info = new PrivateKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94, new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()), new DERObjectIdentifier(gost3410Spec.getDigestParamSetOID())).getDERObject()), new DEROctetString(keyBytes));
        }
        else
        {
            info = new PrivateKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94), new DEROctetString(keyBytes));
        }
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         */
        protected byte[] engineGetEncoded()
        {
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            DEROutputStream         dOut = new DEROutputStream(bOut);
            GOST3410PublicKeyAlgParameters       gost3410P = new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(currentSpec.getPublicKeyParamSetOID()), new DERObjectIdentifier(currentSpec.getDigestParamSetOID()), new DERObjectIdentifier(currentSpec.getEncryptionParamSetOID()));
           
            try
            {
                dOut.writeObject(gost3410P);
                dOut.close();
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Related Classes of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters

  • org.bouncycastle.asn1.ASN1Encodable
  • org.bouncycastle.asn1.ASN1EncodableVector
  • org.bouncycastle.asn1.ASN1Integer
  • org.bouncycastle.asn1.ASN1SequenceParser
  • org.bouncycastle.asn1.ASN1SetParser
  • org.bouncycastle.asn1.BERSequence
  • org.bouncycastle.asn1.BERTaggedObject
  • org.bouncycastle.asn1.cms.AuthEnvelopedDataParser
  • org.bouncycastle.asn1.cms.CompressedData
  • org.bouncycastle.asn1.cms.EncryptedContentInfo
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