Ejemplo n.º 1
0
        /// <summary>
        /// Binds (and decrypts) an encrypted field to a string
        /// </summary>
        /// <param name="controllerContext">The controller context.</param>
        /// <param name="bindingContext">The binding context.</param>
        /// <returns>The decrypted string</returns>
        public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            if (bindingContext.ModelType != typeof(string))
            {
                throw new InvalidOperationException("You cannot bind an object that is not a string with the CryptoBinder");
            }

            ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);

            if (valueProviderResult == null)
            {
                return(null);
            }

            string encryptedString = valueProviderResult.AttemptedValue;

            using (ICrypto crypto = new AesCrypto())
            {
                return(crypto.DecryptToString(encryptedString));
            }
        }