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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.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 (tests-openpgp)
+ #:use-module (guix openpgp)
+ #:use-module (gcrypt base16)
+ #:use-module (gcrypt hash)
+ #:use-module (gcrypt pk-crypto)
+ #:use-module (ice-9 binary-ports)
+ #:use-module (ice-9 match)
+ #:use-module (rnrs bytevectors)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-11)
+ #:use-module (srfi srfi-64)
+ #:use-module (srfi srfi-71))
+
+(define %radix-64-sample
+ ;; Example of Radix-64 encoding from Section 6.6 of RFC4880.
+ "\
+-----BEGIN PGP MESSAGE-----
+Version: OpenPrivacy 0.99
+
+yDgBO22WxBHv7O8X7O/jygAEzol56iUKiXmV+XmpCtmpqQUKiQrFqclFqUDBovzS
+vBSFjNSiVHsuAA==
+=njUN
+-----END PGP MESSAGE-----\n")
+
+(define %radix-64-sample/crc-mismatch
+ ;; This time with a wrong CRC24 value.
+ "\
+-----BEGIN PGP MESSAGE-----
+
+yDgBO22WxBHv7O8X7O/jygAEzol56iUKiXmV+XmpCtmpqQUKiQrFqclFqUDBovzS
+vBSFjNSiVHsuAA==
+=AAAA
+-----END PGP MESSAGE-----\n")
+
+(define %civodul-fingerprint
+ "3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5")
+
+(define %civodul-key-id #x090B11993D9AEBB5) ;civodul.key
+
+;; Test keys. They were generated in a container along these lines:
+;; guix environment -CP --ad-hoc gnupg pinentry
+;; then, within the container:
+;; mkdir ~/.gnupg
+;; echo pinentry-program ~/.guix-profile/bin/pinentry-tty > ~/.gnupg/gpg-agent.conf
+;; gpg --quick-gen-key '<ludo+test-rsa@chbouib.org>' rsa
+;; or similar.
+(define %rsa-key-id #xAE25DA2A70DEED59) ;rsa.key
+(define %dsa-key-id #x587918047BE8BD2C) ;dsa.key
+(define %ed25519-key-id #x771F49CBFAAE072D) ;ed25519.key
+
+(define %rsa-key-fingerprint
+ (base16-string->bytevector
+ (string-downcase "385F86CFC86B665A5C165E6BAE25DA2A70DEED59")))
+(define %dsa-key-fingerprint
+ (base16-string->bytevector
+ (string-downcase "2884A980422330A4F33DD97F587918047BE8BD2C")))
+(define %ed25519-key-fingerprint
+ (base16-string->bytevector
+ (string-downcase "44D31E21AF7138F9B632280A771F49CBFAAE072D")))
+
+
+;;; The following are detached signatures created commands like:
+;;; echo 'Hello!' | gpg -sba --digest-algo sha512
+;;; They are detached (no PACKET-ONE-PASS-SIGNATURE) and uncompressed.
+
+(define %hello-signature/rsa
+ ;; Signature of the ASCII string "Hello!\n".
+ "\
+-----BEGIN PGP SIGNATURE-----
+
+iQEzBAABCAAdFiEEOF+Gz8hrZlpcFl5rriXaKnDe7VkFAl4SRF0ACgkQriXaKnDe
+7VlIyQf/TU5rGUK42/C1ULoWvvm25Mjwh6xxoPPkuBxvos8bE6yKr/vJZePU3aSE
+mjbVFcO7DioxHMqLd49j803bUtdllJVU18ex9MkKbKjapkgEGkJsuTTzqyONprgk
+7xtZGBWuxkP1M6hJICJkA3Ys+sTdKalux/pzr5OWAe+gxytTF/vr/EyJzdmBxbJv
+/fhd1SeVIXSw4c5gf2Wcvcgfy4N5CiLaUb7j4646KBTvDvmUMcDZ+vmKqC/XdQeQ
+PrjArGKt40ErVd98fwvNHZnw7VQMx0A3nL3joL5g7/RckDOUb4mqKoqLsLd0wPHP
+y32DiDUY9s3sy5OMzX4Y49em8vxvlg==
+=ASEm
+-----END PGP SIGNATURE-----")
+
+
+(define %hello-signature/dsa
+ "\
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABEIAB0WIQQohKmAQiMwpPM92X9YeRgEe+i9LAUCXhJFpQAKCRBYeRgEe+i9
+LDAaAQC0lXPQepvZBANAUtRLMZuOwL9NQPkfhIwUXtLEBBzyFQD/So8DcybXpRBi
+JKOiyAQQjMs/GJ6qMEQpRAhyyJRAock=
+=iAEc
+-----END PGP SIGNATURE-----")
+
+
+(define %hello-signature/ed25519/sha256 ;digest-algo: sha256
+ "\
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABYIAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRADAAKCRB3H0nL+q4H
+LUImAP9/foaSjPFC/MSr52LNV5ROSL9haea4jPpUP+N6ViFGowEA+AE/xpXPIqsz
+R6CdxMevURuqUpqQ7rHeiMmdUepeewU=
+=tLXy
+-----END PGP SIGNATURE-----")
+
+(define %hello-signature/ed25519/sha512 ;digest-algo: sha512
+ "\
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABYKAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRAGgAKCRB3H0nL+q4H
+LTeKAP0S8LiiosJXOARlYNdhfGw9j26lHrbwJh5CORGlaqqIJAEAoMYcmtNa2b6O
+inlEwB/KQM88O9RwA8xH7X5a0rodOw4=
+=68r/
+-----END PGP SIGNATURE-----")
+
+(define %hello-signature/ed25519/sha1 ;digest-algo: sha1
+ "\
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABYCAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRALQAKCRB3H0nL+q4H
+LdhEAQCfkdYhIVRa43oTNw9EL/TDFGQjXSHNRFVU0ktjkWbkQwEAjIXhvj2sqy79
+Pz7oopeN72xgggYUNT37ezqN3MeCqw0=
+=AE4G
+-----END PGP SIGNATURE-----")
+
+
+(test-begin "openpgp")
+
+(test-equal "read-radix-64"
+ '(#t "PGP MESSAGE")
+ (let-values (((data type)
+ (call-with-input-string %radix-64-sample read-radix-64)))
+ (list (bytevector? data) type)))
+
+(test-equal "read-radix-64, CRC mismatch"
+ '(#f "PGP MESSAGE")
+ (call-with-values
+ (lambda ()
+ (call-with-input-string %radix-64-sample/crc-mismatch
+ read-radix-64))
+ list))
+
+(test-assert "get-openpgp-keyring"
+ (let* ((key (search-path %load-path "tests/civodul.key"))
+ (keyring (get-openpgp-keyring
+ (open-bytevector-input-port
+ (call-with-input-file key read-radix-64)))))
+ (let-values (((primary packets)
+ (lookup-key-by-id keyring %civodul-key-id)))
+ (let ((fingerprint (openpgp-public-key-fingerprint primary)))
+ (and (= (openpgp-public-key-id primary) %civodul-key-id)
+ (not (openpgp-public-key-subkey? primary))
+ (string=? (openpgp-format-fingerprint fingerprint)
+ %civodul-fingerprint)
+ (string=? (openpgp-user-id-value (find openpgp-user-id? packets))
+ "Ludovic Courtès <ludo@gnu.org>")
+ (eq? (lookup-key-by-fingerprint keyring fingerprint)
+ primary))))))
+
+(test-equal "get-openpgp-detached-signature/ascii"
+ (list `(,%dsa-key-id ,%dsa-key-fingerprint dsa sha256)
+ `(,%rsa-key-id ,%rsa-key-fingerprint rsa sha256)
+ `(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha256)
+ `(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha512)
+ `(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha1))
+ (map (lambda (str)
+ (let ((signature (get-openpgp-detached-signature/ascii
+ (open-input-string str))))
+ (list (openpgp-signature-issuer-key-id signature)
+ (openpgp-signature-issuer-fingerprint signature)
+ (openpgp-signature-public-key-algorithm signature)
+ (openpgp-signature-hash-algorithm signature))))
+ (list %hello-signature/dsa
+ %hello-signature/rsa
+ %hello-signature/ed25519/sha256
+ %hello-signature/ed25519/sha512
+ %hello-signature/ed25519/sha1)))
+
+(test-equal "verify-openpgp-signature, missing key"
+ `(missing-key ,%rsa-key-fingerprint)
+ (let* ((keyring (get-openpgp-keyring (%make-void-port "r")))
+ (signature (string->openpgp-packet %hello-signature/rsa)))
+ (let-values (((status key)
+ (verify-openpgp-signature signature keyring
+ (open-input-string "Hello!\n"))))
+ (list status key))))
+
+(test-equal "verify-openpgp-signature, good signatures"
+ `((good-signature ,%rsa-key-id)
+ (good-signature ,%dsa-key-id)
+ (good-signature ,%ed25519-key-id)
+ (good-signature ,%ed25519-key-id)
+ (good-signature ,%ed25519-key-id))
+ (map (lambda (key signature)
+ (let* ((key (search-path %load-path key))
+ (keyring (get-openpgp-keyring
+ (open-bytevector-input-port
+ (call-with-input-file key read-radix-64))))
+ (signature (string->openpgp-packet signature)))
+ (let-values (((status key)
+ (verify-openpgp-signature signature keyring
+ (open-input-string "Hello!\n"))))
+ (list status (openpgp-public-key-id key)))))
+ (list "tests/rsa.key" "tests/dsa.key"
+ "tests/ed25519.key" "tests/ed25519.key" "tests/ed25519.key")
+ (list %hello-signature/rsa %hello-signature/dsa
+ %hello-signature/ed25519/sha256
+ %hello-signature/ed25519/sha512
+ %hello-signature/ed25519/sha1)))
+
+(test-equal "verify-openpgp-signature, bad signature"
+ `((bad-signature ,%rsa-key-id)
+ (bad-signature ,%dsa-key-id)
+ (bad-signature ,%ed25519-key-id)
+ (bad-signature ,%ed25519-key-id)
+ (bad-signature ,%ed25519-key-id))
+ (let ((keyring (fold (lambda (key keyring)
+ (let ((key (search-path %load-path key)))
+ (get-openpgp-keyring
+ (open-bytevector-input-port
+ (call-with-input-file key read-radix-64))
+ keyring)))
+ %empty-keyring
+ '("tests/rsa.key" "tests/dsa.key"
+ "tests/ed25519.key" "tests/ed25519.key"
+ "tests/ed25519.key"))))
+ (map (lambda (signature)
+ (let ((signature (string->openpgp-packet signature)))
+ (let-values (((status key)
+ (verify-openpgp-signature signature keyring
+ (open-input-string "What?!"))))
+ (list status (openpgp-public-key-id key)))))
+ (list %hello-signature/rsa %hello-signature/dsa
+ %hello-signature/ed25519/sha256
+ %hello-signature/ed25519/sha512
+ %hello-signature/ed25519/sha1))))
+
+(test-end "openpgp")
generated by cgit v1.2.3 (git 2.45.0) at 2024-12-02 02:45:05 +0000