# Supported PGP clients
<a name="pgp-key-clients"></a>

The following clients have been tested with Transfer Family and can be used to generate PGP keys, and to encrypt files that you intend to decrypt with a workflow.
+ **Gpg4win \$1 Kleopatra**. 
**Note**  
When you select **Sign / Encrypt Files**, make sure to clear the selection for **Sign as**: we do not currently support signing for encrypted files.  

![\[\]](http://docs.aws.amazon.com/transfer/latest/userguide/images/workflows-step-decrypt-kleopatra.png)

If you sign the encrypted file and attempt to upload it to a Transfer Family server with a decryption workflow, you receive the following error:  

  ```
  Encrypted file with signed message unsupported
  ```
+ Major **GnuPG** versions: 2.4, 2.3, 2.2, 2.0, and 1.4.

Note that other PGP clients might work as well, but only the clients mentioned here have been tested with Transfer Family.