Examples with ElGamalParameterSpec com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec used on opensource projects

Example 1 with ElGamalParameterSpec

use of com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec in project LinLong-Java by zhenwei1108.

the class AlgorithmParametersSpi method engineInit.

protected void engineInit(byte[] params) throws IOException {
    try {
        ElGamalParameter elP = ElGamalParameter.getInstance(ASN1Primitive.fromByteArray(params));
        currentSpec = new ElGamalParameterSpec(elP.getP(), elP.getG());
    } catch (ClassCastException e) {
        throw new IOException("Not a valid ElGamal Parameter encoding.");
    } catch (ArrayIndexOutOfBoundsException e) {
        throw new IOException("Not a valid ElGamal Parameter encoding.");
    }
}

Example 2 with ElGamalParameterSpec

use of com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec in project LinLong-Java by zhenwei1108.

the class KeyPairGeneratorSpi method initialize.

public void initialize(AlgorithmParameterSpec params, SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(params instanceof ElGamalParameterSpec) && !(params instanceof DHParameterSpec)) {
        throw new InvalidAlgorithmParameterException("parameter object not a DHParameterSpec or an ElGamalParameterSpec");
    }
    if (params instanceof ElGamalParameterSpec) {
        ElGamalParameterSpec elParams = (ElGamalParameterSpec) params;
        param = new ElGamalKeyGenerationParameters(random, new ElGamalParameters(elParams.getP(), elParams.getG()));
    } else {
        DHParameterSpec dhParams = (DHParameterSpec) params;
        param = new ElGamalKeyGenerationParameters(random, new ElGamalParameters(dhParams.getP(), dhParams.getG(), dhParams.getL()));
    }
    engine.init(param);
    initialised = true;
}

Example 3 with ElGamalParameterSpec

use of com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec in project LinLong-Java by zhenwei1108.

the class AlgorithmParametersSpi method engineInit.

protected void engineInit(AlgorithmParameterSpec paramSpec) throws InvalidParameterSpecException {
    if (!(paramSpec instanceof ElGamalParameterSpec) && !(paramSpec instanceof DHParameterSpec)) {
        throw new InvalidParameterSpecException("DHParameterSpec required to initialise a ElGamal algorithm parameters object");
    }
    if (paramSpec instanceof ElGamalParameterSpec) {
        this.currentSpec = (ElGamalParameterSpec) paramSpec;
    } else {
        DHParameterSpec s = (DHParameterSpec) paramSpec;
        this.currentSpec = new ElGamalParameterSpec(s.getP(), s.getG());
    }
}

Example 4 with ElGamalParameterSpec

use of com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec in project LinLong-Java by zhenwei1108.

the class BCElGamalPrivateKey method readObject.

private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();
    this.elSpec = new ElGamalParameterSpec((BigInteger) in.readObject(), (BigInteger) in.readObject());
    this.attrCarrier = new PKCS12BagAttributeCarrierImpl();
}

Example 5 with ElGamalParameterSpec

use of com.github.zhenwei.provider.jce.spec.ElGamalParameterSpec in project LinLong-Java by zhenwei1108.

the class BCElGamalPublicKey method readObject.

private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();
    this.elSpec = new ElGamalParameterSpec((BigInteger) in.readObject(), (BigInteger) in.readObject());
}