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Example 11 with ECNamedCurveSpec

use of org.bouncycastle.jce.spec.ECNamedCurveSpec in project robovm by robovm.

the class BCECPublicKey method populateFromPubKeyInfo.

private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
    X962Parameters params = new X962Parameters((ASN1Primitive) info.getAlgorithm().getParameters());
    ECCurve curve;
    EllipticCurve ellipticCurve;
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) 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 = configuration.getEcImplicitlyCa().getCurve();
    } else {
        X9ECParameters ecP = X9ECParameters.getInstance(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) ASN1Primitive.fromByteArray(data);
            } catch (IOException ex) {
                throw new IllegalArgumentException("error recovering public key");
            }
        }
    }
    X9ECPoint derQ = new X9ECPoint(curve, key);
    this.q = derQ.getPoint();
}
Also used : ASN1OctetString(org.bouncycastle.asn1.ASN1OctetString) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) X9IntegerConverter(org.bouncycastle.asn1.x9.X9IntegerConverter) DERBitString(org.bouncycastle.asn1.DERBitString) IOException(java.io.IOException) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECPoint(java.security.spec.ECPoint) DEROctetString(org.bouncycastle.asn1.DEROctetString) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECPoint(java.security.spec.ECPoint) X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) EllipticCurve(java.security.spec.EllipticCurve) ECParameterSpec(java.security.spec.ECParameterSpec) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECCurve(org.bouncycastle.math.ec.ECCurve) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec)

Example 12 with ECNamedCurveSpec

use of org.bouncycastle.jce.spec.ECNamedCurveSpec in project robovm by robovm.

the class JCEECPrivateKey method getEncoded.

/**
     * Return a PKCS8 representation of the key. The sequence returned
     * represents a full PrivateKeyInfo object.
     *
     * @return a PKCS8 representation of the key.
     */
public byte[] getEncoded() {
    X962Parameters params;
    if (ecSpec instanceof ECNamedCurveSpec) {
        DERObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
        if (// guess it's the OID
        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);
    }
    PrivateKeyInfo info;
    ECPrivateKeyStructure keyStructure;
    if (publicKey != null) {
        keyStructure = new ECPrivateKeyStructure(this.getS(), publicKey, params);
    } else {
        keyStructure = new ECPrivateKeyStructure(this.getS(), params);
    }
    try {
        // BEGIN android-removed
        // if (algorithm.equals("ECGOST3410"))
        // {
        //     info = new PrivateKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params.toASN1Primitive()), keyStructure.toASN1Primitive());
        // }
        // else
        // END android-removed
        {
            info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.toASN1Primitive()), keyStructure.toASN1Primitive());
        }
        return info.getEncoded(ASN1Encoding.DER);
    } catch (IOException e) {
        return null;
    }
}
Also used : X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) ECCurve(org.bouncycastle.math.ec.ECCurve) ECPrivateKeyStructure(org.bouncycastle.asn1.sec.ECPrivateKeyStructure) IOException(java.io.IOException) DERObjectIdentifier(org.bouncycastle.asn1.DERObjectIdentifier) PrivateKeyInfo(org.bouncycastle.asn1.pkcs.PrivateKeyInfo) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec) AlgorithmIdentifier(org.bouncycastle.asn1.x509.AlgorithmIdentifier)

Example 13 with ECNamedCurveSpec

use of org.bouncycastle.jce.spec.ECNamedCurveSpec in project robovm by robovm.

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) ASN1Primitive.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((ASN1Primitive) info.getAlgorithmId().getParameters());
        ECCurve curve;
        EllipticCurve ellipticCurve;
        if (params.isNamedCurve()) {
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) 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 = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa().getCurve();
        } else {
            X9ECParameters ecP = X9ECParameters.getInstance(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) ASN1Primitive.fromByteArray(data);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
        }
        X9ECPoint derQ = new X9ECPoint(curve, key);
        this.q = derQ.getPoint();
    }
}
Also used : ASN1OctetString(org.bouncycastle.asn1.ASN1OctetString) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) X9IntegerConverter(org.bouncycastle.asn1.x9.X9IntegerConverter) DERBitString(org.bouncycastle.asn1.DERBitString) IOException(java.io.IOException) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECPoint(java.security.spec.ECPoint) DEROctetString(org.bouncycastle.asn1.DEROctetString) X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) EllipticCurve(java.security.spec.EllipticCurve) ECParameterSpec(java.security.spec.ECParameterSpec) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECCurve(org.bouncycastle.math.ec.ECCurve) ASN1Primitive(org.bouncycastle.asn1.ASN1Primitive) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec)

Example 14 with ECNamedCurveSpec

use of org.bouncycastle.jce.spec.ECNamedCurveSpec in project robovm by robovm.

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);
    //
    //     try
    //     {
    //         info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params), new DEROctetString(encKey));
    //     }
    //     catch (IOException e)
    //     {
    //         return null;
    //     }
    // }
    // else
    // END android-removed
    {
        if (ecSpec instanceof ECNamedCurveSpec) {
            ASN1ObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
            if (curveOid == null) {
                curveOid = new ASN1ObjectIdentifier(((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)).toASN1Primitive();
        info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets());
    }
    return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
}
Also used : X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) ASN1OctetString(org.bouncycastle.asn1.ASN1OctetString) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECCurve(org.bouncycastle.math.ec.ECCurve) ASN1Encodable(org.bouncycastle.asn1.ASN1Encodable) SubjectPublicKeyInfo(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec) AlgorithmIdentifier(org.bouncycastle.asn1.x509.AlgorithmIdentifier)

Aggregations

ECNamedCurveSpec (org.bouncycastle.jce.spec.ECNamedCurveSpec)14 X962Parameters (org.bouncycastle.asn1.x9.X962Parameters)12 X9ECParameters (org.bouncycastle.asn1.x9.X9ECParameters)12 ECCurve (org.bouncycastle.math.ec.ECCurve)9 ECParameterSpec (java.security.spec.ECParameterSpec)8 ECPoint (java.security.spec.ECPoint)7 EllipticCurve (java.security.spec.EllipticCurve)6 ASN1ObjectIdentifier (org.bouncycastle.asn1.ASN1ObjectIdentifier)6 ASN1OctetString (org.bouncycastle.asn1.ASN1OctetString)6 DERObjectIdentifier (org.bouncycastle.asn1.DERObjectIdentifier)6 AlgorithmIdentifier (org.bouncycastle.asn1.x509.AlgorithmIdentifier)6 X9ECPoint (org.bouncycastle.asn1.x9.X9ECPoint)6 IOException (java.io.IOException)5 ASN1Encodable (org.bouncycastle.asn1.ASN1Encodable)5 ECPrivateKeyStructure (org.bouncycastle.asn1.sec.ECPrivateKeyStructure)4 DERBitString (org.bouncycastle.asn1.DERBitString)3 DERInteger (org.bouncycastle.asn1.DERInteger)3 DEROctetString (org.bouncycastle.asn1.DEROctetString)3 PrivateKeyInfo (org.bouncycastle.asn1.pkcs.PrivateKeyInfo)3 SubjectPublicKeyInfo (org.bouncycastle.asn1.x509.SubjectPublicKeyInfo)3