Example usage for org.bouncycastle.crypto.params DHParameters getJ

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.params DHParameters getJ.

Prototype

public BigInteger getJ() 

Source Link

Document

Return the subgroup factor J.

Usage

From source file:org.xwiki.crypto.internal.asymmetric.generator.BcDHKeyParameterGenerator.java

License:Open Source License

@Override
public KeyGenerationParameters generate(KeyParametersGenerationParameters parameters) {
    if (!(parameters instanceof DHKeyParametersGenerationParameters)) {
        throw new IllegalArgumentException(
                "Invalid parameters for DH key parameters generator: " + parameters.getClass().getName());
    }// ww  w . j av  a 2 s .co m

    org.bouncycastle.crypto.params.DHParameters dhParams = getDhParameters(random.get(),
            (DHKeyParametersGenerationParameters) parameters);

    org.bouncycastle.crypto.params.DHValidationParameters dhValidParams = dhParams.getValidationParameters();

    return new DHKeyGenerationParameters(dhParams.getP(), dhParams.getG(), dhParams.getQ(), dhParams.getM() / 8,
            dhParams.getL() / 8, dhParams.getJ(),
            ((dhValidParams != null)
                    ? new DHKeyValidationParameters(dhValidParams.getSeed(), dhValidParams.getCounter())
                    : null));
}

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