Examples with KeyDerivationFunc com.github.zhenwei.core.asn1.pkcs.KeyDerivationFunc used on opensource projects

Example 1 with KeyDerivationFunc

use of com.github.zhenwei.core.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 com.github.zhenwei.core.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 com.github.zhenwei.core.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 com.github.zhenwei.core.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 com.github.zhenwei.core.asn1.pkcs.KeyDerivationFunc in project hedera-sdk-java by hashgraph.

the class Pem method decryptPrivateKey.

private static PrivateKeyInfo decryptPrivateKey(byte[] encodedStruct, String passphrase) throws IOException {
    var encryptedPrivateKeyInfo = EncryptedPrivateKeyInfo.getInstance(ASN1Primitive.fromByteArray(encodedStruct));
    AlgorithmIdentifier encryptAlg = encryptedPrivateKeyInfo.getEncryptionAlgorithm();
    if (!encryptAlg.getAlgorithm().equals(PKCSObjectIdentifiers.id_PBES2)) {
        throw new BadKeyException("unsupported PEM key encryption: " + encryptAlg);
    }
    PBES2Parameters params = PBES2Parameters.getInstance(encryptAlg.getParameters());
    KeyDerivationFunc kdf = params.getKeyDerivationFunc();
    EncryptionScheme encScheme = params.getEncryptionScheme();
    if (!kdf.getAlgorithm().equals(PKCSObjectIdentifiers.id_PBKDF2)) {
        throw new BadKeyException("unsupported KDF: " + kdf.getAlgorithm());
    }
    if (!encScheme.getAlgorithm().equals(NISTObjectIdentifiers.id_aes128_CBC)) {
        throw new BadKeyException("unsupported encryption: " + encScheme.getAlgorithm());
    }
    PBKDF2Params kdfParams = PBKDF2Params.getInstance(kdf.getParameters());
    if (!kdfParams.getPrf().getAlgorithm().equals(PKCSObjectIdentifiers.id_hmacWithSHA256)) {
        throw new BadKeyException("unsupported PRF: " + kdfParams.getPrf());
    }
    int keyLength = kdfParams.getKeyLength() != null ? kdfParams.getKeyLength().intValue() : Crypto.CBC_DK_LEN;
    KeyParameter derivedKey = Crypto.deriveKeySha256(passphrase, kdfParams.getSalt(), kdfParams.getIterationCount().intValue(), keyLength);
    AlgorithmParameters aesParams;
    try {
        aesParams = AlgorithmParameters.getInstance("AES");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
    aesParams.init(encScheme.getParameters().toASN1Primitive().getEncoded());
    Cipher cipher = Crypto.initAesCbc128Decrypt(derivedKey, aesParams);
    byte[] decrypted = Crypto.runCipher(cipher, encryptedPrivateKeyInfo.getEncryptedData());
    // we need to parse our input data as the cipher may add padding
    ASN1InputStream inputStream = new ASN1InputStream(new ByteArrayInputStream(decrypted));
    return PrivateKeyInfo.getInstance(inputStream.readObject());
}