> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-code-flow/decrypt-symmetric.md).

# Decrypt Symmetric

Decrypt Symmetric allows to decrypt data with a unique Key. This Key is the same for Encrypt and Decrypt.

Action available for the following operating systems:

![](/files/-MAlQBZuuTnc6hyzKSVQ)

### Parameters

* **Data Type***\<numeric> -* Select a File or Text to be Decrypted:
  * 1 - File
  * 2 - Text UTF-16 LE
  * 3 - Text ANSI/Binary
  * 4 - Text UTF-8
* **Source File***\<String> -* Select a File/Text/Variable or control to be Decrypted.
* **Source Encoding***\<numeric>*
  * 1 - None (Binary)
  * 2 - Base 64
* **Target File***<> -* Select a Variable or Control.
* **Algorithm***\<numeric> -* Select the algorithm to be used:
  * 1 - AES CBC PKCS5 Padding
  * 2 - AES EBC PKCS5 Padding
* **Key Type***\<numeric>*
  * 1 - 128 bit key
  * 2 - 256 bit key
  * 3 - Generate SHA256 from key
  * 4 - Generate HMAC SHA256 from key
* **Key***\<string>* Fill with a String, Control or Variable. It is expected the binary key value, without any encoding like Base64 or other.
* **Salt***\<string> -* In cryptography, salt is random data that is used as an additional entry for a unidirectional function that "breaks" data, a password or passphrase. Salts are used to protect passwords in storage. To use fill with a String, Control or Variable. It is expected the binary key value, without any encoding like Base64 or other.
* **Nbr. of Rounds***\<numeric> -* Fill with a Numeric value, Control or Variable.
* **IV Type***<>* Select a Initialization vector (IV):
  * **Provided** (In this case you have to provide the initialization vector in the **IV** parameter).
  * **Data Starts With IV** (In this case, the encrypted string should start with the initialization vector).
* **IV***\<numeric> -* Select a Variable or a Control.