Examples of EncryptionScheme

                return new SimpleTestResult(false, getName() + ": failed construction - exception " + e.toString());
            }


            PBES2Parameters         alg = new PBES2Parameters((ASN1Sequence)info.getEncryptionAlgorithm().getParameters());
            PBKDF2Params            func = PBKDF2Params.getInstance(alg.getKeyDerivationFunc().getParameters());
            EncryptionScheme        scheme = alg.getEncryptionScheme();
    
            if (func.getKeyLength() != null)
            {
                keySize = func.getKeyLength().intValue() * 8;
            }
    
            int     iterationCount = func.getIterationCount().intValue();
            byte[]  salt = func.getSalt();
    
            generator.init(
                PBEParametersGenerator.PKCS5PasswordToBytes(password),
                salt,
                iterationCount);
    
            CipherParameters    param;
    
            if (scheme.getObjectId().equals(RC2_CBC))
            {
                RC2CBCParameter rc2Params = new RC2CBCParameter((ASN1Sequence)scheme.getObject());
                byte[]  iv = rc2Params.getIV();
    
                param = new ParametersWithIV(generator.generateDerivedParameters(keySize), iv);
            }
            else
            {
                byte[]  iv = ((ASN1OctetString)scheme.getObject()).getOctets();


                param = new ParametersWithIV(generator.generateDerivedParameters(keySize), iv);
            }
    
            cipher.init(false, param);

    private static PrivateKey derivePrivateKeyPBES2(org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo eIn, AlgorithmIdentifier algId, char[] password)
            throws GeneralSecurityException, InvalidCipherTextException {
        PBES2Parameters pbeParams = new PBES2Parameters((ASN1Sequence) algId.getParameters());
        CipherParameters cipherParams = extractPBES2CipherParams(password, pbeParams);


        EncryptionScheme scheme = pbeParams.getEncryptionScheme();
        BufferedBlockCipher cipher;
        if (scheme.getAlgorithm().equals(PKCSObjectIdentifiers.RC2_CBC)) {
            RC2CBCParameter rc2Params = new RC2CBCParameter((ASN1Sequence) scheme.getObject());
            byte[] iv = rc2Params.getIV();
            CipherParameters param = new ParametersWithIV(cipherParams, iv);
            cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new RC2Engine()));
            cipher.init(false, param);
        } else {
            byte[] iv = ((ASN1OctetString) scheme.getObject()).getOctets();
            CipherParameters param = new ParametersWithIV(cipherParams, iv);
            cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new DESedeEngine()));
            cipher.init(false, param);
        }

Examples of EncryptionScheme

Examples of org.bouncycastle.asn1.pkcs.EncryptionScheme

Examples of org.bouncycastle.asn1.pkcs.EncryptionScheme