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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2020 Justus Winter <justus@sequoia-pgp.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 openpgp)
+ #:use-module (guix packages)
+ #:use-module (guix download)
+ #:use-module (guix git-download)
+ #:use-module (guix build-system cmake)
+ #:use-module (guix build-system gnu)
+ #:use-module ((guix licenses) #:prefix license:)
+ #:use-module (gnu packages)
+ #:use-module (gnu packages check)
+ #:use-module (gnu packages compression)
+ #:use-module (gnu packages crypto)
+ #:use-module (gnu packages gnupg)
+ #:use-module (gnu packages multiprecision)
+ #:use-module (gnu packages pkg-config)
+ #:use-module (gnu packages python)
+ #:use-module (gnu packages web))
+
+(define-public libtmcg
+ (package
+ (name "libtmcg")
+ (version "1.3.18")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "mirror://savannah/libtmcg/libTMCG-" version
+ ".tar.gz"))
+ (sha256
+ (base32
+ "179b5jx3mqs9hgsj8cfwk6x8qib60kw9szk9fkz6s1gl3v83mnyx"))))
+ (build-system gnu-build-system)
+ (arguments '(#:configure-flags '("--enable-silent-rules")))
+ (inputs `(("gmp" ,gmp)
+ ("libgcrypt" ,libgcrypt)))
+ (synopsis
+ "C++ library for creating secure and fair online card games")
+ (description
+ "The library provides a sort of useful classes, algorithms, and
+high-level protocols to support an application programmer in writing such
+software. The most remarkable feature is the absence of a trusted third
+party (TTP), i.e. neither a central game server nor trusted hardware
+components are necessary.
+
+The corresponding cryptographic problem, actually called Mental Poker, has
+been studied since 1979 (Shamir, Rivest, and Adleman) by many authors.
+LibTMCG provides the first practical implementation of such protocols.")
+ (home-page "https://www.nongnu.org/libtmcg/")
+ (license license:gpl2+)))
+
+(define-public dkgpg
+ (package
+ (name "dkgpg")
+ (version "1.1.3")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "mirror://savannah/dkgpg/dkgpg-" version
+ ".tar.gz"))
+ (sha256
+ (base32
+ "1hpfg7akd5icj49i03z74hp9zj0xwl90bndn0hnw0hpb8lk7qcxg"))))
+ (build-system gnu-build-system)
+ (arguments '(#:configure-flags
+ '("--enable-silent-rules")
+ ;; https://savannah.nongnu.org/bugs/?58772
+ #:parallel-tests? #f))
+ (inputs `(("bzip2" ,bzip2)
+ ("gmp" ,gmp)
+ ("libgcrypt" ,libgcrypt)
+ ("libtmcg" ,libtmcg)
+ ("zlib" ,zlib)))
+ (synopsis
+ "Distributed Key Generation and Threshold Cryptography for OpenPGP")
+ (description
+ "The Distributed Privacy Guard (DKGPG) implements Distributed Key
+Generation (DKG) and Threshold Cryptography for OpenPGP. The generated public
+keys are compatible with the standard and thus can be used by any
+RFC4880-compliant application (e.g. GnuPG). The main purposes of this
+software are distributing power among multiple parties, eliminating single
+points of failure, and increasing the difficulty of side-channel attacks on
+private key material.
+
+DKGPG consists of a bunch of simple command-line programs. The current
+implementation is in experimental state and should NOT be used in production
+environments.")
+ (home-page "https://www.nongnu.org/dkgpg/")
+ (license license:gpl2+)))
+
+(define-public rnp
+ ;; Packaging the currently released version requires a large number of
+ ;; patches. For now, we package a snapshot instead.
+ (let ((commit "203224f0b1505dba17837c03da603e5b98ab125a")
+ (revision "0")
+ (last-version "0.13.1")
+ (day-of-release "2020-07-21"))
+ (package
+ (name "rnp")
+ (version (git-version last-version revision commit))
+ (source (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url "https://github.com/rnpgp/rnp")
+ (commit commit)))
+ (file-name
+ (string-append name "-" (string-take commit 7) "-checkout"))
+ (sha256
+ (base32
+ "1rnwhc9ys4v4mv584hmmrl0ycnqmsaigpffzm31qq337hz24zqya"))
+ (patches
+ (search-patches "rnp-unbundle-googletest.patch"
+ "rnp-disable-ruby-rnp-tests.patch"
+ "rnp-add-version.cmake.patch"))))
+ (build-system cmake-build-system)
+ (arguments `(#:configure-flags
+ '("-DBUILD_SHARED_LIBS=on"
+ "-DBUILD_TESTING=on")
+ #:phases
+ (modify-phases %standard-phases
+ (add-after 'unpack 'fixes
+ (lambda* (#:key inputs #:allow-other-keys)
+ (copy-recursively (assoc-ref inputs "googletest-source")
+ "src/tests/googletest-src")
+ (substitute* "src/tests/support.cpp"
+ (("\"cp\"") (string-append "\"" (which "cp") "\"")))
+ ;; Produce a version stamp in the format the upstream
+ ;; project uses for unreleased revisions.
+ (with-output-to-file "version.txt"
+ (lambda _
+ (display
+ (string-append ,last-version
+ "-" ,revision
+ "-g" ,(string-take commit 7)))))
+ #t))
+ (replace 'check
+ (lambda _
+ ;; Some OpenPGP certificates used by the tests expire.
+ ;; To work around that, set the time to roughly the
+ ;; release date.
+ (invoke "faketime" ,day-of-release "make" "test"))))))
+ (native-inputs
+ `(("gnupg" ,gnupg) ; for tests
+ ("googletest-source" ,(package-source googletest)) ; for tests
+ ("libfaketime" ,libfaketime) ; for tests
+ ("pkg-config" ,pkg-config)
+ ("python" ,python)
+ ("python2" ,python-2.7)))
+ (inputs `(("botan" ,botan)
+ ("bzip2" ,bzip2)
+ ("json-c" ,json-c)
+ ("zlib" ,zlib)))
+ (synopsis
+ "RFC4880-compliant OpenPGP library written in C++")
+ (description
+ "Set of OpenPGP (RFC4880) tools that works on Linux, *BSD and macOS as a
+replacement of GnuPG. It is maintained by Ribose after being forked from
+NetPGP, itself originally written for NetBSD.
+
+librnp is the library used by rnp for all OpenPGP functions, useful for
+developers to build against. It is a “real” library, not a wrapper like GPGME
+of GnuPG.")
+ (home-page "https://www.rnpgp.com/")
+ (license
+ ;; RNP contains code written by Ribose and code derived from netpgp.
+ (list
+ ;; Ribose's BSD 2-Clause License and NetBSD's BSD 2-Clause License
+ ;; (netpgp).
+ license:bsd-2
+ ;; Nominet UK's Apache 2.0 Licence (netpgp).
+ license:asl2.0
+ ;; Nominet UK's BSD 3-Clause License (netpgp).
+ license:bsd-3)))))