MCabber OpenPGP support This files explains how to use PGP support in mcabber. Please note that you need libgpgme > 1.0.0 (for example, libgpgme11 in Debian) on your system. ## Enabling OpenPGP support ## In the configuration file, enable pgp and set pgp_private_key to your key id. Your key id can be found with the following command: % gpg --list-keys --keyid-format long your_name Example (in $HOME/.mcabber/mcabberrc): set pgp = 1 set pgp_private_key = "E3E6A9C1A6A013D3" ## Encrypting messages ## Now when you start mcabber, it should ask for your passphrase (unless you put it in your configuration file or you use gpg-agent). If you want to know if a contact is using PGP, select the contact and use the command /info. If (s)he is, it should display something like: PGP key id: E2C4C9A1601A5A4 Last PGP signature: unknown The signature is "unknown", because we don't have the contact's key. We could get it with gpg, for example: % gpg --recv-keys E2C4C9A1601A5A4 Then, wait for the next presence message. If the contact has your key and you have their key, you should have bidirectional encrypted messages. ## Per-contact settings ## You can provide a PGP key to be used for a given Jabber user or disable PGP on a per-account basis, using the command /pgp. If you provide a KeyId for a contact, it will be compared to the key the contact uses to sign their presence/messages and it will be used for all outgoing encrypted messages (by default, mcabber will use the contact signature's key). Example: /pgp disable foo@bar.org (disables encryption of messages sent to foo@bar.org) /pgp setkey bar@foo.net C9940A9BB0B92210 (set the encryption key for bar@foo.net and warn if this contact doesn't use this key for their signatures) /pgp info (show the PGP settings we've set for the currently selected contact) Try "/help pgp" for a usage description. The command /pgp can be used in the configuration file (without the leading /).