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Example 6 with X962Parameters

use of org.gudy.bouncycastle.asn1.x9.X962Parameters in project robovm by robovm.

the class BCECPublicKey method getEncoded.

public byte[] getEncoded() {
    ASN1Encodable params;
    SubjectPublicKeyInfo info;
    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)

Example 7 with X962Parameters

use of org.gudy.bouncycastle.asn1.x9.X962Parameters in project robovm by robovm.

the class JCEECPrivateKey method populateFromPrivKeyInfo.

private void populateFromPrivKeyInfo(PrivateKeyInfo info) throws IOException {
    X962Parameters params = new X962Parameters((ASN1Primitive) info.getPrivateKeyAlgorithm().getParameters());
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        // BEGIN android-removed
        // if (ecP == null) // GOST Curve
        // {
        //     ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
        //     EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());
        //
        //     ecSpec = new ECNamedCurveSpec(
        //             ECGOST3410NamedCurves.getName(oid),
        //             ellipticCurve,
        //             new ECPoint(
        //                     gParam.getG().getX().toBigInteger(),
        //                     gParam.getG().getY().toBigInteger()),
        //             gParam.getN(),
        //             gParam.getH());
        // }
        // else
        // END android-removed
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), 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;
    } else {
        X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
        EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
        this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    ASN1Encodable privKey = info.parsePrivateKey();
    if (privKey instanceof DERInteger) {
        DERInteger derD = DERInteger.getInstance(privKey);
        this.d = derD.getValue();
    } else {
        ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence) privKey);
        this.d = ec.getKey();
        this.publicKey = ec.getPublicKey();
    }
}
Also used : X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) EllipticCurve(java.security.spec.EllipticCurve) ECParameterSpec(java.security.spec.ECParameterSpec) ASN1Encodable(org.bouncycastle.asn1.ASN1Encodable) ECPrivateKeyStructure(org.bouncycastle.asn1.sec.ECPrivateKeyStructure) ECPoint(java.security.spec.ECPoint) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec) DERInteger(org.bouncycastle.asn1.DERInteger)

Example 8 with X962Parameters

use of org.gudy.bouncycastle.asn1.x9.X962Parameters in project BiglyBT by BiglySoftware.

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.
 */
@Override
public byte[] getEncoded() {
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    DEROutputStream dOut = new DEROutputStream(bOut);
    X962Parameters params = null;
    if (ecSpec instanceof ECNamedCurveParameterSpec) {
        params = new X962Parameters(X962NamedCurves.getOID(((ECNamedCurveParameterSpec) ecSpec).getName()));
    } else {
        X9ECParameters ecP = new X9ECParameters(ecSpec.getCurve(), ecSpec.getG(), ecSpec.getN(), ecSpec.getH(), ecSpec.getSeed());
        params = new X962Parameters(ecP);
    }
    PrivateKeyInfo info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), new ECPrivateKeyStructure(this.getD()).getDERObject());
    try {
        dOut.writeObject(info);
        dOut.close();
    } catch (IOException e) {
        throw new RuntimeException("Error encoding EC private key");
    }
    return bOut.toByteArray();
}
Also used : X962Parameters(org.gudy.bouncycastle.asn1.x9.X962Parameters) X9ECParameters(org.gudy.bouncycastle.asn1.x9.X9ECParameters) ECNamedCurveParameterSpec(org.gudy.bouncycastle.jce.spec.ECNamedCurveParameterSpec) ByteArrayOutputStream(java.io.ByteArrayOutputStream) ECPrivateKeyStructure(org.gudy.bouncycastle.asn1.sec.ECPrivateKeyStructure) IOException(java.io.IOException) PrivateKeyInfo(org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo) AlgorithmIdentifier(org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier)

Example 9 with X962Parameters

use of org.gudy.bouncycastle.asn1.x9.X962Parameters in project BiglyBT by BiglySoftware.

the class JCEECPublicKey method getEncoded.

@Override
public byte[] getEncoded() {
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    DEROutputStream dOut = new DEROutputStream(bOut);
    X962Parameters params = null;
    if (ecSpec instanceof ECNamedCurveParameterSpec) {
        params = new X962Parameters(X962NamedCurves.getOID(((ECNamedCurveParameterSpec) ecSpec).getName()));
    } else {
        X9ECParameters ecP = new X9ECParameters(ecSpec.getCurve(), ecSpec.getG(), ecSpec.getN(), ecSpec.getH(), ecSpec.getSeed());
        params = new X962Parameters(ecP);
    }
    ASN1OctetString p = (ASN1OctetString) (new X9ECPoint(this.getQ()).getDERObject());
    SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
    try {
        dOut.writeObject(info);
        dOut.close();
    } catch (IOException e) {
        throw new RuntimeException("Error encoding EC public key");
    }
    return bOut.toByteArray();
}
Also used : ECNamedCurveParameterSpec(org.gudy.bouncycastle.jce.spec.ECNamedCurveParameterSpec) ByteArrayOutputStream(java.io.ByteArrayOutputStream) IOException(java.io.IOException) SubjectPublicKeyInfo(org.gudy.bouncycastle.asn1.x509.SubjectPublicKeyInfo) AlgorithmIdentifier(org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier)

Example 10 with X962Parameters

use of org.gudy.bouncycastle.asn1.x9.X962Parameters in project robovm by robovm.

the class PublicKeyFactory method createKey.

/**
     * Create a public key from the passed in SubjectPublicKeyInfo
     * 
     * @param keyInfo the SubjectPublicKeyInfo containing the key data
     * @return the appropriate key parameter
     * @throws IOException on an error decoding the key
     */
public static AsymmetricKeyParameter createKey(SubjectPublicKeyInfo keyInfo) throws IOException {
    AlgorithmIdentifier algId = keyInfo.getAlgorithm();
    if (algId.getAlgorithm().equals(PKCSObjectIdentifiers.rsaEncryption) || algId.getAlgorithm().equals(X509ObjectIdentifiers.id_ea_rsa)) {
        RSAPublicKey pubKey = RSAPublicKey.getInstance(keyInfo.parsePublicKey());
        return new RSAKeyParameters(false, pubKey.getModulus(), pubKey.getPublicExponent());
    } else if (algId.getAlgorithm().equals(X9ObjectIdentifiers.dhpublicnumber)) {
        DHPublicKey dhPublicKey = DHPublicKey.getInstance(keyInfo.parsePublicKey());
        BigInteger y = dhPublicKey.getY().getValue();
        DHDomainParameters dhParams = DHDomainParameters.getInstance(algId.getParameters());
        BigInteger p = dhParams.getP().getValue();
        BigInteger g = dhParams.getG().getValue();
        BigInteger q = dhParams.getQ().getValue();
        BigInteger j = null;
        if (dhParams.getJ() != null) {
            j = dhParams.getJ().getValue();
        }
        DHValidationParameters validation = null;
        DHValidationParms dhValidationParms = dhParams.getValidationParms();
        if (dhValidationParms != null) {
            byte[] seed = dhValidationParms.getSeed().getBytes();
            BigInteger pgenCounter = dhValidationParms.getPgenCounter().getValue();
            // TODO Check pgenCounter size?
            validation = new DHValidationParameters(seed, pgenCounter.intValue());
        }
        return new DHPublicKeyParameters(y, new DHParameters(p, g, q, j, validation));
    } else if (algId.getAlgorithm().equals(PKCSObjectIdentifiers.dhKeyAgreement)) {
        DHParameter params = DHParameter.getInstance(algId.getParameters());
        ASN1Integer derY = (ASN1Integer) keyInfo.parsePublicKey();
        BigInteger lVal = params.getL();
        int l = lVal == null ? 0 : lVal.intValue();
        DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);
        return new DHPublicKeyParameters(derY.getValue(), dhParams);
    } else // END android-removed
    if (algId.getAlgorithm().equals(X9ObjectIdentifiers.id_dsa) || algId.getAlgorithm().equals(OIWObjectIdentifiers.dsaWithSHA1)) {
        ASN1Integer derY = (ASN1Integer) keyInfo.parsePublicKey();
        ASN1Encodable de = algId.getParameters();
        DSAParameters parameters = null;
        if (de != null) {
            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());
        X9ECParameters x9;
        if (params.isNamedCurve()) {
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
            x9 = X962NamedCurves.getByOID(oid);
            if (x9 == null) {
                x9 = SECNamedCurves.getByOID(oid);
                if (x9 == null) {
                    x9 = NISTNamedCurves.getByOID(oid);
                // BEGIN android-removed
                // if (x9 == null)
                // {
                //     x9 = TeleTrusTNamedCurves.getByOID(oid);
                // }
                // END android-removed
                }
            }
        } else {
            x9 = X9ECParameters.getInstance(params.getParameters());
        }
        ASN1OctetString key = new DEROctetString(keyInfo.getPublicKeyData().getBytes());
        X9ECPoint derQ = new X9ECPoint(x9.getCurve(), key);
        // TODO We lose any named parameters here
        ECDomainParameters dParams = new ECDomainParameters(x9.getCurve(), x9.getG(), x9.getN(), x9.getH(), x9.getSeed());
        return new ECPublicKeyParameters(derQ.getPoint(), dParams);
    } else {
        throw new RuntimeException("algorithm identifier in key not recognised");
    }
}
Also used : ASN1OctetString(org.bouncycastle.asn1.ASN1OctetString) DHPublicKeyParameters(org.bouncycastle.crypto.params.DHPublicKeyParameters) ECDomainParameters(org.bouncycastle.crypto.params.ECDomainParameters) DHPublicKey(org.bouncycastle.asn1.x9.DHPublicKey) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) DHValidationParms(org.bouncycastle.asn1.x9.DHValidationParms) ECPublicKeyParameters(org.bouncycastle.crypto.params.ECPublicKeyParameters) RSAKeyParameters(org.bouncycastle.crypto.params.RSAKeyParameters) DEROctetString(org.bouncycastle.asn1.DEROctetString) AlgorithmIdentifier(org.bouncycastle.asn1.x509.AlgorithmIdentifier) X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) RSAPublicKey(org.bouncycastle.asn1.pkcs.RSAPublicKey) DHValidationParameters(org.bouncycastle.crypto.params.DHValidationParameters) ASN1Encodable(org.bouncycastle.asn1.ASN1Encodable) DSAParameter(org.bouncycastle.asn1.x509.DSAParameter) DHParameter(org.bouncycastle.asn1.pkcs.DHParameter) DSAPublicKeyParameters(org.bouncycastle.crypto.params.DSAPublicKeyParameters) DHParameters(org.bouncycastle.crypto.params.DHParameters) ASN1Integer(org.bouncycastle.asn1.ASN1Integer) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) BigInteger(java.math.BigInteger) DHDomainParameters(org.bouncycastle.asn1.x9.DHDomainParameters) DSAParameters(org.bouncycastle.crypto.params.DSAParameters) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier)

Aggregations

X962Parameters (org.bouncycastle.asn1.x9.X962Parameters)16 X9ECParameters (org.bouncycastle.asn1.x9.X9ECParameters)16 ECNamedCurveSpec (org.bouncycastle.jce.spec.ECNamedCurveSpec)12 AlgorithmIdentifier (org.bouncycastle.asn1.x509.AlgorithmIdentifier)10 ECCurve (org.bouncycastle.math.ec.ECCurve)9 ASN1ObjectIdentifier (org.bouncycastle.asn1.ASN1ObjectIdentifier)8 ASN1OctetString (org.bouncycastle.asn1.ASN1OctetString)8 DERObjectIdentifier (org.bouncycastle.asn1.DERObjectIdentifier)8 X9ECPoint (org.bouncycastle.asn1.x9.X9ECPoint)8 IOException (java.io.IOException)7 ASN1Encodable (org.bouncycastle.asn1.ASN1Encodable)7 ECParameterSpec (java.security.spec.ECParameterSpec)6 ECPoint (java.security.spec.ECPoint)6 EllipticCurve (java.security.spec.EllipticCurve)6 DERInteger (org.bouncycastle.asn1.DERInteger)5 DEROctetString (org.bouncycastle.asn1.DEROctetString)5 ECPrivateKeyStructure (org.bouncycastle.asn1.sec.ECPrivateKeyStructure)5 BigInteger (java.math.BigInteger)4 DERBitString (org.bouncycastle.asn1.DERBitString)4 DHParameter (org.bouncycastle.asn1.pkcs.DHParameter)4