OpenSSLSymmetricCipherContext OpenSSLSymmetricCipher::start(OpenSSLSymmetricCipher::Method method, const SymmetricKey& key, const InitializationVector& iv, bool padding)
        {
            OpenSSLSymmetricCipherContext context(method);

            int r = 0;

            const EVP_CIPHER* evpCipher = getEVPCipher(key);

            EXCEPTION_ASSERT(evpCipher, std::invalid_argument, "No cipher found that can use the supplied key");

            switch (context.method())
            {
            case M_ENCRYPT:
            {
                r = EVP_EncryptInit_ex(context.ctx(), evpCipher, NULL, &key.data()[0], &iv.data()[0]);
                break;
            }
            case M_DECRYPT:
            {
                r = EVP_DecryptInit_ex(context.ctx(), evpCipher, NULL, &key.data()[0], &iv.data()[0]);
                break;
            }
            default:
            {
                THROW_EXCEPTION_WITH_LOG(std::runtime_error, "Unhandled method");
            }
            }

            EXCEPTION_ASSERT_WITH_LOG(r == 1, OpenSSLException, "");

            context.data().clear();

            context.setPadding(padding);

            return context;
        }
Пример #2
0
/**
 * \brief Comparaison operator.
 * \param lhs The left argument.
 * \param rhs The right argument.
 * \return true if lhs is less than rhs.
 */
inline bool operator<(const SymmetricKey& lhs, const SymmetricKey& rhs)
{
    return (lhs.data() < rhs.data());
}