Examples with GOST3410PublicKeyAlgParameters com.github.zhenwei.core.asn1.cryptopro.GOST3410PublicKeyAlgParameters used on opensource projects

Example 1 with GOST3410PublicKeyAlgParameters

use of com.github.zhenwei.core.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 2 with GOST3410PublicKeyAlgParameters

use of com.github.zhenwei.core.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 3 with GOST3410PublicKeyAlgParameters

use of com.github.zhenwei.core.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;
}

Example 4 with GOST3410PublicKeyAlgParameters

use of com.github.zhenwei.core.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project LinLong-Java by zhenwei1108.

the class EC5Util method convertToSpec.

public static ECParameterSpec convertToSpec(X962Parameters params, ECCurve curve) {
    ECParameterSpec ecSpec;
    EllipticCurve ellipticCurve;
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        if (ecP == null) {
            Map additionalECParameters = WeGooProvider.CONFIGURATION.getAdditionalECParameters();
            if (!additionalECParameters.isEmpty()) {
                ecP = (X9ECParameters) additionalECParameters.get(oid);
            }
        }
        ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
        ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, convertPoint(ecP.getG()), ecP.getN(), ecP.getH());
    } else if (params.isImplicitlyCA()) {
        ecSpec = null;
    } else {
        ASN1Sequence pSeq = ASN1Sequence.getInstance(params.getParameters());
        if (pSeq.size() > 3) {
            X9ECParameters ecP = X9ECParameters.getInstance(pSeq);
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            if (ecP.getH() != null) {
                ecSpec = new ECParameterSpec(ellipticCurve, convertPoint(ecP.getG()), ecP.getN(), ecP.getH().intValue());
            } else {
                ecSpec = new ECParameterSpec(ellipticCurve, convertPoint(ecP.getG()), ecP.getN(), // TODO: not strictly correct... need to fix the test data...
                1);
            }
        } else // GOST parameters
        {
            GOST3410PublicKeyAlgParameters gostParams = GOST3410PublicKeyAlgParameters.getInstance(pSeq);
            ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));
            curve = spec.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());
            ecSpec = new ECNamedCurveSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()), ellipticCurve, EC5Util.convertPoint(spec.getG()), spec.getN(), spec.getH());
        }
    }
    return ecSpec;
}

Example 5 with GOST3410PublicKeyAlgParameters

use of com.github.zhenwei.core.asn1.cryptopro.GOST3410PublicKeyAlgParameters in project LinLong-Java by zhenwei1108.

the class BCGOST3410PublicKey method getEncoded.

public byte[] getEncoded() {
    SubjectPublicKeyInfo info;
    byte[] keyEnc = this.getY().toByteArray();
    byte[] keyBytes;
    if (keyEnc[0] == 0) {
        keyBytes = new byte[keyEnc.length - 1];
    } else {
        keyBytes = new byte[keyEnc.length];
    }
    for (int i = 0; i != keyBytes.length; i++) {
        // must be little endian
        keyBytes[i] = keyEnc[keyEnc.length - 1 - i];
    }
    try {
        if (gost3410Spec instanceof GOST3410ParameterSpec) {
            if (gost3410Spec.getEncryptionParamSetOID() != null) {
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94, new GOST3410PublicKeyAlgParameters(new ASN1ObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()), new ASN1ObjectIdentifier(gost3410Spec.getDigestParamSetOID()), new ASN1ObjectIdentifier(gost3410Spec.getEncryptionParamSetOID()))), new DEROctetString(keyBytes));
            } else {
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94, new GOST3410PublicKeyAlgParameters(new ASN1ObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()), new ASN1ObjectIdentifier(gost3410Spec.getDigestParamSetOID()))), new DEROctetString(keyBytes));
            }
        } else {
            info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94), new DEROctetString(keyBytes));
        }
        return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
    } catch (IOException e) {
        return null;
    }
}