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79 lines
3.1 KiB
Markdown
79 lines
3.1 KiB
Markdown
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# Profanity - OpenPGP for XMPP
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Implementation of XEP-0373 - OpenPGP for XMPP (OX) in profanity.
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## Overview
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The current version (2020-05-23) of profanity provides *XEP-0027: Current Jabber
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OpenPGP Usage* via the `/pgp` command. This XEP is *Obsolete*. We should
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implement *XEP-0373 - OpenPGP for XMPP (OX)* in profanity.
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## pgp
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```
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14:37:52 - Synopsis
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14:37:52 - /pgp libver
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14:37:52 - /pgp keys
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14:37:52 - /pgp contacts
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14:37:52 - /pgp setkey <contact> <keyid>
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14:37:52 - /pgp start [<contact>]
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14:37:52 - /pgp end
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14:37:52 - /pgp log on|off|redact
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14:37:52 - /pgp char <char>
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14:37:52 -
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14:37:52 - Description
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14:37:52 - Open PGP commands to manage keys, and perform PGP encryption during chat sessions. See the /account command to set your own PGP key.
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14:37:52 -
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14:37:52 - Arguments
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14:37:52 - libver : Show which version of the libgpgme library is being used.
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14:37:52 - keys : List all keys known to the system.
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14:37:52 - contacts : Show contacts with assigned public keys.
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14:37:52 - setkey <contact> <keyid> : Manually associate a contact with a public key.
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14:37:52 - start [<contact>] : Start PGP encrypted chat, current contact will be used if not specified.
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14:37:52 - end : End PGP encrypted chat with the current recipient.
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14:37:52 - log on|off : Enable or disable plaintext logging of PGP encrypted messages.
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14:37:52 - log redact : Log PGP encrypted messages, but replace the contents with [redacted]. This is the default.
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14:37:52 - char <char> : Set the character to be displayed next to PGP encrypted messages.
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```
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## OX
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We should implement the `/ox` command which can be used for XEP-0373 instead of
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XEP-0027.
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```
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/ox keys - List all public keys known to the system (gnupg's keyring)
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/ox contacts - Shows contacts with an assigned public key.
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```
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The `keys` command will list all public keys of gnupg's Keyring, independent if
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the key is in use for XMPP or not.
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In profanity we are going to implement the key lookup with a XMPP-URI as OpenPGP
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User-ID. An OpenPGP public key can only be used, if the owner of the public key
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created an User-ID with the XMPP-URI as Name. https://xmpp.org/extensions/xep-0373.html#openpgp-user-ids
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It's not required and possible to assign a contact to an public key.
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```
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sec rsa3072 2020-05-01 [SC] [verfällt: 2022-05-01]
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7FA1EB8644BAC07E7F18E7C9F121E6A6F3A0C7A5
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uid [ ultimativ ] Doctor Snuggles <doctor.snuggles@domain.tld>
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uid [ ultimativ ] xmpp:doctor.snuggles@domain.tld
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ssb rsa3072 2020-05-01 [E] [verfällt: 2022-05-01]
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```
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The `contacts` command will show all contacts of the roster with a public key in
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the keyring, if there is a xmpp user-id within the public key.
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OX provides the elements: `<signcrypt/>`, `<sign/>` and `<crypt/>`. Profanity
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implements signcrypt, only.
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## Keys command
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The command `keys` is independent of the XEP. Should we move common commands
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(e.g. /pgp keys /ox keys) to /openpgp which will will be the function which are
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related to gnupg itself.
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## Appendix
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* https://xmpp.org/extensions/xep-0373.html - 0.4.0 (2018-07-30)
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