Activationg encription in PSI (Best jabber client)
aptitude install libqca2-plugin-gnupg
First, you must identify your account with your key for this:
Open your account settings
Click the item «modify».
Select the tab «details».
Click on the button «select key».
Choose your key and click «OK».
Once you perform this operation, the program at startup will ask you to enter a password to your private key. This is normal, since the operations of your correspondents decrypt messages and sign their communications needs access to your private key.
Next you need to associate a user account (your correspondent), with its key.
To do this:
In the Contacts program (roster) choose the correspondent, whose key you imported is signed and assigned him to the level of confidence
Click on the right mouse button and select «Set Key OpenPGP».
In the window that opens, select the key of the correspondent.
To activate encryption when communicating with your buddies, click on the lock symbol, which will be active in the bar of the dialog. In private communication you will receive a colorful message from the program in the dialog box that encryption is enabled.