Examples with KeyDerivationFunc org.bouncycastle.asn1.pkcs.KeyDerivationFunc used on opensource projects

Example 1 with KeyDerivationFunc

use of org.bouncycastle.asn1.pkcs.KeyDerivationFunc 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));
        }
    };
}

Example 2 with KeyDerivationFunc

use of org.bouncycastle.asn1.pkcs.KeyDerivationFunc in project xwiki-commons by xwiki.

the class BcPKCS5S2KeyDerivationFunctionFactory method getInstance.

@Override
public KeyDerivationFunction getInstance(ASN1Encodable parameters) {
    KeyDerivationFunc kdf = KeyDerivationFunc.getInstance(parameters);
    if (!kdf.getAlgorithm().equals(PKCSObjectIdentifiers.id_PBKDF2)) {
        throw new IllegalArgumentException("Illegal algorithm identifier for PBKDF2: " + kdf.getAlgorithm().getId());
    }
    PBKDF2Params params = PBKDF2Params.getInstance(kdf.getParameters());
    return getInstance(new PBKDF2Parameters((params.getKeyLength() != null) ? params.getKeyLength().intValue() : -1, params.getIterationCount().intValue(), params.getSalt(), toDigestHint(params.getPseudoRandomFunctionIdentifier())));
}

Example 3 with KeyDerivationFunc

use of org.bouncycastle.asn1.pkcs.KeyDerivationFunc in project xwiki-commons by xwiki.

the class DefaultKeyDerivationFunctionFactory method getInstance.

@Override
public KeyDerivationFunction getInstance(byte[] encoded) {
    KeyDerivationFunc func = KeyDerivationFunc.getInstance(ASN1Sequence.getInstance(encoded));
    KeyDerivationFunctionFactory factory = getFactory(func.getAlgorithm().getId());
    KeyDerivationFunction kdf = getBcInstance(factory, func);
    if (kdf == null) {
        kdf = factory.getInstance(encoded);
    }
    return kdf;
}

Example 4 with KeyDerivationFunc

use of org.bouncycastle.asn1.pkcs.KeyDerivationFunc in project xwiki-commons by xwiki.

the class AbstractBcPBES2Cipher method getPBEParameters.

@Override
public AlgorithmIdentifier getPBEParameters() throws IOException {
    KeyDerivationFunc kdfParams;
    if (getKeyDerivationFunction() instanceof AbstractBcKDF) {
        kdfParams = ((AbstractBcKDF) getKeyDerivationFunction()).getKeyDerivationFunction();
    } else {
        kdfParams = KeyDerivationFunc.getInstance(getKeyDerivationFunction().getEncoded());
    }
    EncryptionScheme scheme = getScheme(getParameters());
    return new AlgorithmIdentifier(PKCSObjectIdentifiers.id_PBES2, new PBES2Parameters(kdfParams, scheme));
}

Example 5 with KeyDerivationFunc

use of org.bouncycastle.asn1.pkcs.KeyDerivationFunc in project xwiki-commons by xwiki.

the class BcPBES2AesCipherFactory method getInstance.

@Override
protected PasswordBasedCipher getInstance(boolean forEncryption, byte[] password, KeyDerivationFunc kdfParams, EncryptionScheme scheme) {
    KeyDerivationFunction kdf = getKeyDerivationFunction(kdfParams);
    // Set key size according to the encryption scheme algorithm used.
    kdf.overrideKeySize(getAESKeySize(scheme.getAlgorithm()));
    return getPasswordBasedCipher(forEncryption, kdf, new KeyWithIVParameters(kdf.derive(password).getKey(), ((ASN1OctetString) scheme.getParameters()).getOctets()));
}