Examples with BcDigestFactory org.xwiki.crypto.internal.digest.factory.BcDigestFactory used on opensource projects

Example 1 with BcDigestFactory

use of org.xwiki.crypto.internal.digest.factory.BcDigestFactory in project xwiki-commons by xwiki.

the class BcPKCS5S2KeyDerivationFunctionFactory method getInstance.

@Override
public KeyDerivationFunction getInstance(KeyDerivationFunctionParameters params) {
    if (!(params instanceof PBKDF2Parameters)) {
        throw new IllegalArgumentException("Invalid parameter used for PKCS5S2 function: " + params.getClass().getName());
    }
    PBKDF2Parameters kdfParams = (PBKDF2Parameters) params;
    PKCS5S2ParametersGenerator generator;
    BcDigestFactory factory = null;
    if (kdfParams.getPseudoRandomFuntionHint() != null) {
        factory = this.getDigestFactory(kdfParams.getPseudoRandomFuntionHint());
        generator = new PKCS5S2ParametersGenerator(factory.getDigestInstance());
    } else {
        generator = new PKCS5S2ParametersGenerator();
    }
    return new AbstractBcPBKDF2(generator, (PBKDF2Parameters) params, (factory != null) ? toHmacAlgId(factory.getAlgorithmIdentifier()) : HMAC_SHA1) {

        @Override
        public KeyDerivationFunc getKeyDerivationFunction() {
            PBKDF2Parameters parameters = (PBKDF2Parameters) getParameters();
            AlgorithmIdentifier algId = getPRFAlgorithmIdentifier();
            return new KeyDerivationFunc(PKCSObjectIdentifiers.id_PBKDF2, (isKeySizeOverwritten()) ? new PBKDF2Params(parameters.getSalt(), parameters.getIterationCount(), algId) : new PBKDF2Params(parameters.getSalt(), parameters.getIterationCount(), parameters.getKeySize(), algId));
        }
    };
}