Examples with BasePublicEncryptionKey com.github.zhenwei.pkix.util.oer.its.BasePublicEncryptionKey used on opensource projects

Example 1 with BasePublicEncryptionKey

use of com.github.zhenwei.pkix.util.oer.its.BasePublicEncryptionKey in project LinLong-Java by zhenwei1108.

the class BcITSPublicEncryptionKey method getKey.

public AsymmetricKeyParameter getKey() {
    X9ECParameters params;
    BasePublicEncryptionKey baseKey = encryptionKey.getBasePublicEncryptionKey();
    ASN1ObjectIdentifier curveID;
    switch(baseKey.getChoice()) {
        case BasePublicEncryptionKey.eciesNistP256:
            curveID = SECObjectIdentifiers.secp256r1;
            params = NISTNamedCurves.getByOID(SECObjectIdentifiers.secp256r1);
            break;
        case BasePublicEncryptionKey.eciesBrainpoolP256r1:
            curveID = TeleTrusTObjectIdentifiers.brainpoolP256r1;
            params = TeleTrusTNamedCurves.getByOID(TeleTrusTObjectIdentifiers.brainpoolP256r1);
            break;
        default:
            throw new IllegalStateException("unknown key type");
    }
    ECCurve curve = params.getCurve();
    ASN1Encodable pviCurvePoint = encryptionKey.getBasePublicEncryptionKey().getValue();
    final EccCurvePoint itsPoint;
    if (pviCurvePoint instanceof EccCurvePoint) {
        itsPoint = (EccCurvePoint) baseKey.getValue();
    } else {
        throw new IllegalStateException("extension to public verification key not supported");
    }
    byte[] key;
    if (itsPoint instanceof EccP256CurvePoint) {
        key = itsPoint.getEncodedPoint();
    } else if (itsPoint instanceof EccP384CurvePoint) {
        key = itsPoint.getEncodedPoint();
    } else {
        throw new IllegalStateException("unknown key type");
    }
    ECPoint point = curve.decodePoint(key).normalize();
    return new ECPublicKeyParameters(point, new ECNamedDomainParameters(curveID, params));
}

Example 2 with BasePublicEncryptionKey

use of com.github.zhenwei.pkix.util.oer.its.BasePublicEncryptionKey in project LinLong-Java by zhenwei1108.

the class JceITSPublicEncryptionKey method getKey.

public PublicKey getKey() {
    BasePublicEncryptionKey baseKey = encryptionKey.getBasePublicEncryptionKey();
    X9ECParameters params;
    switch(baseKey.getChoice()) {
        case BasePublicEncryptionKey.eciesNistP256:
            params = NISTNamedCurves.getByOID(SECObjectIdentifiers.secp256r1);
            break;
        case BasePublicEncryptionKey.eciesBrainpoolP256r1:
            params = TeleTrusTNamedCurves.getByOID(TeleTrusTObjectIdentifiers.brainpoolP256r1);
            break;
        default:
            throw new IllegalStateException("unknown key type");
    }
    ASN1Encodable pviCurvePoint = encryptionKey.getBasePublicEncryptionKey().getValue();
    final EccCurvePoint itsPoint;
    if (pviCurvePoint instanceof EccCurvePoint) {
        itsPoint = (EccCurvePoint) baseKey.getValue();
    } else {
        throw new IllegalStateException("extension to public verification key not supported");
    }
    ECCurve curve = params.getCurve();
    byte[] key;
    if (itsPoint instanceof EccP256CurvePoint) {
        key = itsPoint.getEncodedPoint();
    } else if (itsPoint instanceof EccP384CurvePoint) {
        key = itsPoint.getEncodedPoint();
    } else {
        throw new IllegalStateException("unknown key type");
    }
    ECPoint point = curve.decodePoint(key).normalize();
    try {
        KeyFactory keyFactory = helper.createKeyFactory("EC");
        ECParameterSpec spec = EC5Util.convertToSpec(params);
        java.security.spec.ECPoint jPoint = EC5Util.convertPoint(point);
        return keyFactory.generatePublic(new ECPublicKeySpec(jPoint, spec));
    } catch (Exception e) {
        throw new IllegalStateException(e.getMessage(), e);
    }
}