# Sign Message

Sign Message with your Private Key will generate a “hash” that can be verified with your public key.

Action available for the following operating systems:

![](https://3821468174-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LrTlA1suFa5N48x_83N%2F-MAlPVpH3WRwBy16c7JY%2F-MAlQBZuuTnc6hyzKSVQ%2Fimage.png?alt=media\&token=5c9534b7-ca05-4ac4-b408-2207cd5a5295)

### Parameters

* **Data Type** *\<numeric> -* Select the data type of your message
  * 1 - Text UTF-16 LE
  * 2 - Text ANSI/Binary
  * 3 - Text UTF-8
* **Source** *\<string> -* Select a Text, Variable or control to be Sign.
* **Target** *-* Select a Variable or Control.
* **Result Encoding** *\<numeric>*
  * 1 - None (Binary)
  * 2 - Base 64
* **Algorithm** *\<numeric> -* Select the algorithm to be used:
  * Dynamic
    * 1 - RSA PKCS1 Padding
    * 2 - RSA OAEP Padding
* **Key (Private)** *\<string>* - Fill with a String, Control or Variable. **PrivateKey** must be provided in PKCS#8 format encoded in Base64 (with no headers/footers).

{% hint style="info" %}
For more information see Android documentation: <https://developer.android.com/reference/java/security/spec/PKCS8EncodedKeySpec>
{% endhint %}

* **Key Size** *\<numeric> -* Default value: 2048