Hello all, we are using the RT::Crypt::GnuPG module and have run into an issue that I'm afraid we cannot solve.
Recently, some german mail providers, most notably GMX (one of the biggest free webmail providers in Europe) have enabled end-to-end encryption for their users. This is implemented using OpenPGP keys and a browser plug-in (modified version of Mailvelope). However, GMX does not publish the generated keys to a keyserver. Instead, users can send a so-called "invitation to encrypted communication" which is essentially an auto-generated mail that has the public key attached in an .asc attachment. [I am told by some customers that this is the way some commercial mail servers/appliances seem to handle key management, too.] This is where the problems start. With our current setup (and a local keyring on the RT server), RT will try handling the .asc attachment as encrypted data (which it isn't), fail and not handle the rest of the ticket. The requestor will receive a mail saying RT found invalid PGP data in their request. To remedy this (and add the key to RT's keyring), we currently have to manually extract the pubkey, scp it to the RT, add the key to the keyring and then re-set permissions (since gpg seems to modify ownership to the user who last modified a keyring file) to the web server. This is clumsy, error-prone and a security issue (since ssh access to our RT box is restricted with good reason). Also, it's unfortunately not possible to make GMX or our other customers with similar behavior change their mail format - this is clearly out of scope. We are using RT 4.0.8. Is there any configuration setting that I might have missed, or any other possibility to get RT to automatically import keys that come into the system as a .asc attachment? I am aware of the security implications of this (and, in fact, have set the trust settings to "always", as authentication of user requests is always performed separately). Best regards, --ck
