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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu packages messaging)
#:use-module (guix licenses)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix build-system gnu)
#:use-module (gnu packages gnupg))
(define-public libotr
(package
(name "libotr")
(version "4.0.0")
(source (origin
(method url-fetch)
(uri (string-append "https://otr.cypherpunks.ca/libotr-"
version ".tar.gz"))
(sha256
(base32 "1d4k0b7v4d3scwm858cmqr9c6xgd6ppla1vk4x2yg64q82a1k49z"))))
(build-system gnu-build-system)
(propagated-inputs
`(("libgcrypt" ,libgcrypt))) ; libotr headers include gcrypt.h
(inputs `(("libgpg-error" ,libgpg-error)))
(arguments
`(#:configure-flags '("--with-pic")))
(synopsis "Off-the-Record (OTR) Messaging Library and Toolkit")
(description
"OTR allows you to have private conversations over instant messaging by
providing:
* Encryption: No one else can read your instant messages.
* Authentication: You are assured the correspondent is who you think it is.
* Deniability: The messages you send do not have digital signatures that are
checkable by a third party. Anyone can forge messages after a conversation
to make them look like they came from you. However, during a conversation,
your correspondent is assured the messages he sees are authentic and
unmodified.
* Perfect forward secrecy: If you lose control of your private keys, no
previous conversation is compromised.")
(home-page "https://otr.cypherpunks.ca/")
(license (list lgpl2.1 gpl2))))
(define-public libotr-3
(package (inherit libotr)
(version "3.2.1")
(source (origin
(method url-fetch)
(uri (string-append "https://otr.cypherpunks.ca/libotr-"
version ".tar.gz"))
(sha256
(base32 "1x6dd4rh499hdraiqfhz81igrj0a5rs0gjhc8l4sljwqhjjyla6l"))))))
;;; messaging.scm ends here
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