Examples with GOST3410PublicKeyAlgParameters org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters used on opensource projects

Example 1 with GOST3410PublicKeyAlgParameters

use of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project XobotOS by xamarin.

the class JCEECPublicKey method populateFromPubKeyInfo.

private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
    // BEGIN android-removed
    // if (info.getAlgorithmId().getObjectId().equals(CryptoProObjectIdentifiers.gostR3410_2001))
    // {
    //     DERBitString bits = info.getPublicKeyData();
    //     ASN1OctetString key;
    //     this.algorithm = "ECGOST3410";
    //
    //     try
    //     {
    //         key = (ASN1OctetString) ASN1Object.fromByteArray(bits.getBytes());
    //     }
    //     catch (IOException ex)
    //     {
    //         throw new IllegalArgumentException("error recovering public key");
    //     }
    //
    //     byte[]          keyEnc = key.getOctets();
    //     byte[]          x = new byte[32];
    //     byte[]          y = new byte[32];
    //
    //     for (int i = 0; i != x.length; i++)
    //     {
    //         x[i] = keyEnc[32 - 1 - i];
    //     }
    //
    //     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());
    //
    //     this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);
    //
    //     ecSpec = new ECNamedCurveSpec(
    //             ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
    //             ellipticCurve,
    //             new ECPoint(
    //                     spec.getG().getX().toBigInteger(),
    //                     spec.getG().getY().toBigInteger()),
    //                     spec.getN(), spec.getH());
    //
    // }
    // else
    // END android-removed
    {
        X962Parameters params = new X962Parameters((DERObject) info.getAlgorithmId().getParameters());
        ECCurve curve;
        EllipticCurve ellipticCurve;
        if (params.isNamedCurve()) {
            DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH());
        } else if (params.isImplicitlyCA()) {
            ecSpec = null;
            curve = ProviderUtil.getEcImplicitlyCa().getCurve();
        } else {
            X9ECParameters ecP = new X9ECParameters((ASN1Sequence) params.getParameters());
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
        }
        DERBitString bits = info.getPublicKeyData();
        byte[] data = bits.getBytes();
        ASN1OctetString key = new DEROctetString(data);
        //
        if (data[0] == 0x04 && data[1] == data.length - 2 && (data[2] == 0x02 || data[2] == 0x03)) {
            int qLength = new X9IntegerConverter().getByteLength(curve);
            if (qLength >= data.length - 3) {
                try {
                    key = (ASN1OctetString) ASN1Object.fromByteArray(data);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
        }
        X9ECPoint derQ = new X9ECPoint(curve, key);
        this.q = derQ.getPoint();
    }
}

Example 2 with GOST3410PublicKeyAlgParameters

use of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project XobotOS by xamarin.

the class JCEECPublicKey method getEncoded.

public byte[] getEncoded() {
    ASN1Encodable params;
    SubjectPublicKeyInfo info;
    // BEGIN android-removed
    // if (algorithm.equals("ECGOST3410"))
    // {
    //     if (gostParams != null)
    //     {
    //         params = gostParams;
    //     }
    //     else
    //     {
    //         if (ecSpec instanceof ECNamedCurveSpec)
    //         {
    //             params = new GOST3410PublicKeyAlgParameters(
    //                            ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec)ecSpec).getName()),
    //                            CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
    //         }
    //         else
    //         {   // strictly speaking this may not be applicable...
    //             ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
    //
    //             X9ECParameters ecP = new X9ECParameters(
    //                 curve,
    //                 EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
    //                 ecSpec.getOrder(),
    //                 BigInteger.valueOf(ecSpec.getCofactor()),
    //                 ecSpec.getCurve().getSeed());
    //
    //             params = new X962Parameters(ecP);
    //         }
    //     }
    //
    //     BigInteger      bX = this.q.getX().toBigInteger();
    //     BigInteger      bY = this.q.getY().toBigInteger();
    //     byte[]          encKey = new byte[64];
    //
    //     extractBytes(encKey, 0, bX);
    //     extractBytes(encKey, 32, bY);
    //
    //     info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params.getDERObject()), new DEROctetString(encKey));
    // }
    // else
    // END android-removed
    {
        if (ecSpec instanceof ECNamedCurveSpec) {
            DERObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
            if (curveOid == null) {
                curveOid = new DERObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
            }
            params = new X962Parameters(curveOid);
        } else if (ecSpec == null) {
            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(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
            params = new X962Parameters(ecP);
        }
        ECCurve curve = this.engineGetQ().getCurve();
        ASN1OctetString p = (ASN1OctetString) new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).getDERObject();
        info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
    }
    return info.getDEREncoded();
}

Example 3 with GOST3410PublicKeyAlgParameters

use of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project LinLong-Java by zhenwei1108.

the class PrivateKeyInfoFactory method createPrivateKeyInfo.

/**
 * Create a PrivateKeyInfo representation of a private key with attributes.
 *
 * @param privateKey the key to be encoded into the info object.
 * @param attributes the set of attributes to be included.
 * @return the appropriate PrivateKeyInfo
 * @throws IOException on an error encoding the key
 */
public static PrivateKeyInfo createPrivateKeyInfo(AsymmetricKeyParameter privateKey, ASN1Set attributes) throws IOException {
    if (privateKey instanceof RSAKeyParameters) {
        RSAPrivateCrtKeyParameters priv = (RSAPrivateCrtKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new RSAPrivateKey(priv.getModulus(), priv.getPublicExponent(), priv.getExponent(), priv.getP(), priv.getQ(), priv.getDP(), priv.getDQ(), priv.getQInv()), attributes);
    } else if (privateKey instanceof DSAPrivateKeyParameters) {
        DSAPrivateKeyParameters priv = (DSAPrivateKeyParameters) privateKey;
        DSAParameters params = priv.getParameters();
        return new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, new DSAParameter(params.getP(), params.getQ(), params.getG())), new ASN1Integer(priv.getX()), attributes);
    } else if (privateKey instanceof ECPrivateKeyParameters) {
        ECPrivateKeyParameters priv = (ECPrivateKeyParameters) privateKey;
        ECDomainParameters domainParams = priv.getParameters();
        ASN1Encodable params;
        int orderBitLength;
        if (domainParams == null) {
            // Implicitly CA
            params = new X962Parameters(DERNull.INSTANCE);
            orderBitLength = priv.getD().bitLength();
        } else if (domainParams instanceof ECGOST3410Parameters) {
            GOST3410PublicKeyAlgParameters gostParams = new GOST3410PublicKeyAlgParameters(((ECGOST3410Parameters) domainParams).getPublicKeyParamSet(), ((ECGOST3410Parameters) domainParams).getDigestParamSet(), ((ECGOST3410Parameters) domainParams).getEncryptionParamSet());
            int size;
            ASN1ObjectIdentifier identifier;
            if (cryptoProOids.contains(gostParams.getPublicKeyParamSet())) {
                size = 32;
                identifier = CryptoProObjectIdentifiers.gostR3410_2001;
            } else {
                boolean is512 = priv.getD().bitLength() > 256;
                identifier = (is512) ? RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512 : RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
                size = (is512) ? 64 : 32;
            }
            byte[] encKey = new byte[size];
            extractBytes(encKey, size, 0, priv.getD());
            return new PrivateKeyInfo(new AlgorithmIdentifier(identifier, gostParams), new DEROctetString(encKey));
        } else if (domainParams instanceof ECNamedDomainParameters) {
            params = new X962Parameters(((ECNamedDomainParameters) domainParams).getName());
            orderBitLength = domainParams.getN().bitLength();
        } else {
            X9ECParameters ecP = new X9ECParameters(domainParams.getCurve(), new X9ECPoint(domainParams.getG(), false), domainParams.getN(), domainParams.getH(), domainParams.getSeed());
            params = new X962Parameters(ecP);
            orderBitLength = domainParams.getN().bitLength();
        }
        ECPoint q = new FixedPointCombMultiplier().multiply(domainParams.getG(), priv.getD());
        // TODO Support point compression
        DERBitString publicKey = new DERBitString(q.getEncoded(false));
        return new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), new ECPrivateKey(orderBitLength, priv.getD(), publicKey, params), attributes);
    } else if (privateKey instanceof X448PrivateKeyParameters) {
        X448PrivateKeyParameters key = (X448PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof X25519PrivateKeyParameters) {
        X25519PrivateKeyParameters key = (X25519PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof Ed448PrivateKeyParameters) {
        Ed448PrivateKeyParameters key = (Ed448PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed448), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof Ed25519PrivateKeyParameters) {
        Ed25519PrivateKeyParameters key = (Ed25519PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed25519), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else {
        throw new IOException("key parameters not recognized");
    }
}

Example 4 with GOST3410PublicKeyAlgParameters

use of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project LinLong-Java by zhenwei1108.

the class BCECGOST3410_2012PublicKey method getEncoded.

public byte[] getEncoded() {
    ASN1Encodable params;
    SubjectPublicKeyInfo info;
    // ecPublicKey.getQ().
    BigInteger bX = this.ecPublicKey.getQ().getAffineXCoord().toBigInteger();
    BigInteger bY = this.ecPublicKey.getQ().getAffineYCoord().toBigInteger();
    // need to detect key size
    boolean is512 = (bX.bitLength() > 256);
    params = getGostParams();
    if (params == null) {
        if (ecSpec instanceof ECNamedCurveSpec) {
            if (is512) {
                params = new GOST3410PublicKeyAlgParameters(ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec) ecSpec).getName()), RosstandartObjectIdentifiers.id_tc26_gost_3411_12_512);
            } else {
                params = new GOST3410PublicKeyAlgParameters(ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec) ecSpec).getName()), RosstandartObjectIdentifiers.id_tc26_gost_3411_12_256);
            }
        } else {
            // strictly speaking this may not be applicable...
            ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
            X9ECParameters ecP = new X9ECParameters(curve, new X9ECPoint(EC5Util.convertPoint(curve, ecSpec.getGenerator()), withCompression), ecSpec.getOrder(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
            params = new X962Parameters(ecP);
        }
    }
    int encKeySize;
    int offset;
    ASN1ObjectIdentifier algIdentifier;
    if (is512) {
        encKeySize = 128;
        offset = 64;
        algIdentifier = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512;
    } else {
        encKeySize = 64;
        offset = 32;
        algIdentifier = RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
    }
    byte[] encKey = new byte[encKeySize];
    extractBytes(encKey, encKeySize / 2, 0, bX);
    extractBytes(encKey, encKeySize / 2, offset, bY);
    try {
        info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(algIdentifier, params), new DEROctetString(encKey));
    } catch (IOException e) {
        return null;
    }
    return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
}

Example 5 with GOST3410PublicKeyAlgParameters

use of org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project LinLong-Java by zhenwei1108.

the class BCECGOST3410_2012PublicKey method getGostParams.

public GOST3410PublicKeyAlgParameters getGostParams() {
    if (gostParams == null && ecSpec instanceof ECNamedCurveSpec) {
        BigInteger bX = this.ecPublicKey.getQ().getAffineXCoord().toBigInteger();
        // need to detect key size
        boolean is512 = (bX.bitLength() > 256);
        if (is512) {
            this.gostParams = new GOST3410PublicKeyAlgParameters(ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec) ecSpec).getName()), RosstandartObjectIdentifiers.id_tc26_gost_3411_12_512);
        } else {
            this.gostParams = new GOST3410PublicKeyAlgParameters(ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec) ecSpec).getName()), RosstandartObjectIdentifiers.id_tc26_gost_3411_12_256);
        }
    }
    return gostParams;
}