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680b80e374
* guix/openpgp.scm (fxbit-set?): Change to swap arguments compared to
'bit-set?'.
* tests/openpgp.scm (%binary-sample): New test vector.
("port-ascii-armored?, #t"): Add test.
("port-ascii-armored?, #f"): Add another test.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
265 lines
10 KiB
Scheme
265 lines
10 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (tests-openpgp)
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#:use-module (guix openpgp)
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#:use-module (gcrypt base16)
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#:use-module (gcrypt hash)
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#:use-module (gcrypt pk-crypto)
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#:use-module (ice-9 binary-ports)
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#:use-module (ice-9 match)
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#:use-module (rnrs bytevectors)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-64)
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#:use-module (srfi srfi-71))
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(define %radix-64-sample
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;; Example of Radix-64 encoding from Section 6.6 of RFC4880.
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"\
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-----BEGIN PGP MESSAGE-----
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Version: OpenPrivacy 0.99
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yDgBO22WxBHv7O8X7O/jygAEzol56iUKiXmV+XmpCtmpqQUKiQrFqclFqUDBovzS
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vBSFjNSiVHsuAA==
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=njUN
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-----END PGP MESSAGE-----\n")
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(define %radix-64-sample/crc-mismatch
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;; This time with a wrong CRC24 value.
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"\
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-----BEGIN PGP MESSAGE-----
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yDgBO22WxBHv7O8X7O/jygAEzol56iUKiXmV+XmpCtmpqQUKiQrFqclFqUDBovzS
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vBSFjNSiVHsuAA==
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=AAAA
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-----END PGP MESSAGE-----\n")
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(define %binary-sample
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;; Same message as %radix-64-sample, decoded into bytevector.
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(base16-string->bytevector
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"c838013b6d96c411efecef17ecefe3ca0004ce8979ea250a897995f979a9\
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0ad9a9a9050a890ac5a9c945a940c1a2fcd2bc14858cd4a2547b2e00"))
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(define %civodul-fingerprint
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"3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5")
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(define %civodul-key-id #x090B11993D9AEBB5) ;civodul.key
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;; Test keys. They were generated in a container along these lines:
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;; guix environment -CP --ad-hoc gnupg pinentry
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;; then, within the container:
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;; mkdir ~/.gnupg
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;; echo pinentry-program ~/.guix-profile/bin/pinentry-tty > ~/.gnupg/gpg-agent.conf
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;; gpg --quick-gen-key '<ludo+test-rsa@chbouib.org>' rsa
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;; or similar.
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(define %rsa-key-id #xAE25DA2A70DEED59) ;rsa.key
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(define %dsa-key-id #x587918047BE8BD2C) ;dsa.key
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(define %ed25519-key-id #x771F49CBFAAE072D) ;ed25519.key
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(define %rsa-key-fingerprint
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(base16-string->bytevector
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(string-downcase "385F86CFC86B665A5C165E6BAE25DA2A70DEED59")))
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(define %dsa-key-fingerprint
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(base16-string->bytevector
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(string-downcase "2884A980422330A4F33DD97F587918047BE8BD2C")))
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(define %ed25519-key-fingerprint
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(base16-string->bytevector
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(string-downcase "44D31E21AF7138F9B632280A771F49CBFAAE072D")))
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;;; The following are detached signatures created commands like:
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;;; echo 'Hello!' | gpg -sba --digest-algo sha512
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;;; They are detached (no PACKET-ONE-PASS-SIGNATURE) and uncompressed.
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(define %hello-signature/rsa
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;; Signature of the ASCII string "Hello!\n".
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"\
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-----BEGIN PGP SIGNATURE-----
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iQEzBAABCAAdFiEEOF+Gz8hrZlpcFl5rriXaKnDe7VkFAl4SRF0ACgkQriXaKnDe
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7VlIyQf/TU5rGUK42/C1ULoWvvm25Mjwh6xxoPPkuBxvos8bE6yKr/vJZePU3aSE
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mjbVFcO7DioxHMqLd49j803bUtdllJVU18ex9MkKbKjapkgEGkJsuTTzqyONprgk
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7xtZGBWuxkP1M6hJICJkA3Ys+sTdKalux/pzr5OWAe+gxytTF/vr/EyJzdmBxbJv
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/fhd1SeVIXSw4c5gf2Wcvcgfy4N5CiLaUb7j4646KBTvDvmUMcDZ+vmKqC/XdQeQ
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PrjArGKt40ErVd98fwvNHZnw7VQMx0A3nL3joL5g7/RckDOUb4mqKoqLsLd0wPHP
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y32DiDUY9s3sy5OMzX4Y49em8vxvlg==
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=ASEm
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-----END PGP SIGNATURE-----")
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(define %hello-signature/dsa
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"\
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-----BEGIN PGP SIGNATURE-----
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iHUEABEIAB0WIQQohKmAQiMwpPM92X9YeRgEe+i9LAUCXhJFpQAKCRBYeRgEe+i9
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LDAaAQC0lXPQepvZBANAUtRLMZuOwL9NQPkfhIwUXtLEBBzyFQD/So8DcybXpRBi
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JKOiyAQQjMs/GJ6qMEQpRAhyyJRAock=
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=iAEc
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-----END PGP SIGNATURE-----")
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(define %hello-signature/ed25519/sha256 ;digest-algo: sha256
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"\
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-----BEGIN PGP SIGNATURE-----
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iHUEABYIAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRADAAKCRB3H0nL+q4H
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LUImAP9/foaSjPFC/MSr52LNV5ROSL9haea4jPpUP+N6ViFGowEA+AE/xpXPIqsz
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R6CdxMevURuqUpqQ7rHeiMmdUepeewU=
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=tLXy
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-----END PGP SIGNATURE-----")
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(define %hello-signature/ed25519/sha512 ;digest-algo: sha512
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"\
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-----BEGIN PGP SIGNATURE-----
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iHUEABYKAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRAGgAKCRB3H0nL+q4H
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LTeKAP0S8LiiosJXOARlYNdhfGw9j26lHrbwJh5CORGlaqqIJAEAoMYcmtNa2b6O
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inlEwB/KQM88O9RwA8xH7X5a0rodOw4=
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=68r/
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-----END PGP SIGNATURE-----")
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(define %hello-signature/ed25519/sha1 ;digest-algo: sha1
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"\
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-----BEGIN PGP SIGNATURE-----
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iHUEABYCAB0WIQRE0x4hr3E4+bYyKAp3H0nL+q4HLQUCXqRALQAKCRB3H0nL+q4H
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LdhEAQCfkdYhIVRa43oTNw9EL/TDFGQjXSHNRFVU0ktjkWbkQwEAjIXhvj2sqy79
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Pz7oopeN72xgggYUNT37ezqN3MeCqw0=
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=AE4G
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-----END PGP SIGNATURE-----")
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(test-begin "openpgp")
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(test-equal "read-radix-64"
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'(#t "PGP MESSAGE")
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(let-values (((data type)
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(call-with-input-string %radix-64-sample read-radix-64)))
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(list (bytevector? data) type)))
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(test-equal "read-radix-64, CRC mismatch"
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'(#f "PGP MESSAGE")
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(call-with-values
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(lambda ()
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(call-with-input-string %radix-64-sample/crc-mismatch
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read-radix-64))
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list))
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(test-assert "port-ascii-armored?, #t"
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(call-with-input-string %radix-64-sample port-ascii-armored?))
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(test-assert "port-ascii-armored?, #f"
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(not (port-ascii-armored? (open-bytevector-input-port %binary-sample))))
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(test-assert "get-openpgp-keyring"
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(let* ((key (search-path %load-path "tests/civodul.key"))
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(keyring (get-openpgp-keyring
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(open-bytevector-input-port
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(call-with-input-file key read-radix-64)))))
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(let-values (((primary packets)
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(lookup-key-by-id keyring %civodul-key-id)))
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(let ((fingerprint (openpgp-public-key-fingerprint primary)))
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(and (= (openpgp-public-key-id primary) %civodul-key-id)
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(not (openpgp-public-key-subkey? primary))
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(string=? (openpgp-format-fingerprint fingerprint)
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%civodul-fingerprint)
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(string=? (openpgp-user-id-value (find openpgp-user-id? packets))
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"Ludovic Courtès <ludo@gnu.org>")
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(eq? (lookup-key-by-fingerprint keyring fingerprint)
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primary))))))
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(test-equal "get-openpgp-detached-signature/ascii"
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(list `(,%dsa-key-id ,%dsa-key-fingerprint dsa sha256)
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`(,%rsa-key-id ,%rsa-key-fingerprint rsa sha256)
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`(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha256)
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`(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha512)
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`(,%ed25519-key-id ,%ed25519-key-fingerprint eddsa sha1))
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(map (lambda (str)
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(let ((signature (get-openpgp-detached-signature/ascii
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(open-input-string str))))
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(list (openpgp-signature-issuer-key-id signature)
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(openpgp-signature-issuer-fingerprint signature)
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(openpgp-signature-public-key-algorithm signature)
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(openpgp-signature-hash-algorithm signature))))
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(list %hello-signature/dsa
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%hello-signature/rsa
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%hello-signature/ed25519/sha256
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%hello-signature/ed25519/sha512
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%hello-signature/ed25519/sha1)))
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(test-equal "verify-openpgp-signature, missing key"
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`(missing-key ,%rsa-key-fingerprint)
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(let* ((keyring (get-openpgp-keyring (%make-void-port "r")))
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(signature (string->openpgp-packet %hello-signature/rsa)))
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(let-values (((status key)
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(verify-openpgp-signature signature keyring
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(open-input-string "Hello!\n"))))
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(list status key))))
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(test-equal "verify-openpgp-signature, good signatures"
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`((good-signature ,%rsa-key-id)
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(good-signature ,%dsa-key-id)
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(good-signature ,%ed25519-key-id)
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(good-signature ,%ed25519-key-id)
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(good-signature ,%ed25519-key-id))
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(map (lambda (key signature)
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(let* ((key (search-path %load-path key))
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(keyring (get-openpgp-keyring
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(open-bytevector-input-port
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(call-with-input-file key read-radix-64))))
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(signature (string->openpgp-packet signature)))
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(let-values (((status key)
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(verify-openpgp-signature signature keyring
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(open-input-string "Hello!\n"))))
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(list status (openpgp-public-key-id key)))))
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(list "tests/rsa.key" "tests/dsa.key"
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"tests/ed25519.key" "tests/ed25519.key" "tests/ed25519.key")
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(list %hello-signature/rsa %hello-signature/dsa
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%hello-signature/ed25519/sha256
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%hello-signature/ed25519/sha512
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%hello-signature/ed25519/sha1)))
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(test-equal "verify-openpgp-signature, bad signature"
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`((bad-signature ,%rsa-key-id)
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(bad-signature ,%dsa-key-id)
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(bad-signature ,%ed25519-key-id)
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(bad-signature ,%ed25519-key-id)
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(bad-signature ,%ed25519-key-id))
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(let ((keyring (fold (lambda (key keyring)
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(let ((key (search-path %load-path key)))
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(get-openpgp-keyring
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(open-bytevector-input-port
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(call-with-input-file key read-radix-64))
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keyring)))
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%empty-keyring
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'("tests/rsa.key" "tests/dsa.key"
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"tests/ed25519.key" "tests/ed25519.key"
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"tests/ed25519.key"))))
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(map (lambda (signature)
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(let ((signature (string->openpgp-packet signature)))
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(let-values (((status key)
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(verify-openpgp-signature signature keyring
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(open-input-string "What?!"))))
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(list status (openpgp-public-key-id key)))))
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(list %hello-signature/rsa %hello-signature/dsa
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%hello-signature/ed25519/sha256
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%hello-signature/ed25519/sha512
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%hello-signature/ed25519/sha1))))
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(test-end "openpgp")
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