How to crypt a message?

Chat in the right menu will display a list of your partners. To the right of each you'll see two buttons - Send, from where you can send messages without going to encrypt and Chat. Click Chat. You will open a new window, below is a window Leave a message. After you enter the text you want to send, select Encrypt message, then press Enter. it will show another window with decryption key, where you can specify the email to the recipient, so he can then open and read your message.