Examples with ECParameterSpec java.security.spec.ECParameterSpec used on opensource projects

Example 1 with ECParameterSpec

use of java.security.spec.ECParameterSpec 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();
    }
}

Example 2 with ECParameterSpec

use of java.security.spec.ECParameterSpec in project robovm by robovm.

the class OpenSSLECKeyFactory method engineTranslateKey.

@Override
protected Key engineTranslateKey(Key key) throws InvalidKeyException {
    if (key == null) {
        throw new InvalidKeyException("key == null");
    }
    if ((key instanceof OpenSSLECPublicKey) || (key instanceof OpenSSLECPrivateKey)) {
        return key;
    } else if (key instanceof ECPublicKey) {
        ECPublicKey ecKey = (ECPublicKey) key;
        ECPoint w = ecKey.getW();
        ECParameterSpec params = ecKey.getParams();
        try {
            return engineGeneratePublic(new ECPublicKeySpec(w, params));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if (key instanceof ECPrivateKey) {
        ECPrivateKey ecKey = (ECPrivateKey) key;
        BigInteger s = ecKey.getS();
        ECParameterSpec params = ecKey.getParams();
        try {
            return engineGeneratePrivate(new ECPrivateKeySpec(s, params));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PrivateKey) && ("PKCS#8".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePrivate(new PKCS8EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PublicKey) && ("X.509".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePublic(new X509EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else {
        throw new InvalidKeyException("Key must be EC public or private key; was " + key.getClass().getName());
    }
}

Example 3 with ECParameterSpec

use of java.security.spec.ECParameterSpec in project robovm by robovm.

the class OpenSSLECKeyPairGenerator method initialize.

@Override
public void initialize(AlgorithmParameterSpec param, SecureRandom random) throws InvalidAlgorithmParameterException {
    if (param instanceof ECParameterSpec) {
        ECParameterSpec ecParam = (ECParameterSpec) param;
        group = OpenSSLECGroupContext.getInstance(ecParam);
    } else if (param instanceof ECGenParameterSpec) {
        ECGenParameterSpec ecParam = (ECGenParameterSpec) param;
        final String curveName = ecParam.getName();
        /*
             * Store the group in a temporary variable until we know this is a
             * valid group.
             */
        final OpenSSLECGroupContext possibleGroup = OpenSSLECGroupContext.getCurveByName(curveName);
        if (possibleGroup == null) {
            throw new InvalidAlgorithmParameterException("unknown curve name: " + curveName);
        }
        group = possibleGroup;
    } else {
        throw new InvalidAlgorithmParameterException("parameter must be ECParameterSpec or ECGenParameterSpec");
    }
}

Example 4 with ECParameterSpec

use of java.security.spec.ECParameterSpec in project robovm by robovm.

the class OpenSSLECPublicKey method equals.

@Override
public boolean equals(Object o) {
    if (o == this) {
        return true;
    }
    if (o instanceof OpenSSLECPrivateKey) {
        OpenSSLECPrivateKey other = (OpenSSLECPrivateKey) o;
        return key.equals(other.key);
    }
    if (!(o instanceof ECPublicKey)) {
        return false;
    }
    final ECPublicKey other = (ECPublicKey) o;
    if (!getPublicKey().equals(other.getW())) {
        return false;
    }
    final ECParameterSpec spec = getParams();
    final ECParameterSpec otherSpec = other.getParams();
    return spec.getCurve().equals(otherSpec.getCurve()) && spec.getGenerator().equals(otherSpec.getGenerator()) && spec.getOrder().equals(otherSpec.getOrder()) && spec.getCofactor() == otherSpec.getCofactor();
}

Example 5 with ECParameterSpec

use of java.security.spec.ECParameterSpec in project robovm by robovm.

the class ECPrivateKeySpecTest method setUp.

protected void setUp() throws Exception {
    super.setUp();
    ECPoint ecpoint = new ECPoint(BigInteger.valueOf(1), BigInteger.valueOf(1));
    EllipticCurve curve = new EllipticCurve(new ECFieldF2m(2), BigInteger.valueOf(1), BigInteger.valueOf(1));
    s = BigInteger.valueOf(1);
    ecparams = new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), 1);
    ecpks = new ECPrivateKeySpec(s, ecparams);
}