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# GNU Guix --- Functional package management for GNU
# Copyright © 2013, 2014, 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/>.
#
# Test the 'guix authenticate' command-line utility.
#
guix authenticate --version
sig="t-signature-$$"
hash="t-hash-$$"
rm -f "$sig" "$hash"
trap 'rm -f "$sig" "$hash"' EXIT
key="$abs_top_srcdir/tests/signing-key.sec"
key_len="`echo -n $key | wc -c`"
# A hexadecimal string as long as a sha256 hash.
hash="2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb"
hash_len="`echo -n $hash | wc -c`"
echo "sign $key_len:$key $hash_len:$hash" | guix authenticate > "$sig"
test -f "$sig"
case "$(cat $sig)" in
"0 "*) ;;
*) echo "broken signature: $(cat $sig)"
exit 42;;
esac
# Remove the leading "0".
sed -i "$sig" -e's/^0 //g'
hash2="$(echo verify $(cat "$sig") | guix authenticate)"
test "$(echo $hash2 | cut -d : -f 2)" = "$hash"
# Detect corrupt signatures.
code="$(echo "verify 5:wrong" | guix authenticate | cut -f1 -d ' ')"
test "$code" -ne 0
# Detect invalid signatures.
# The signature has (payload (data ... (hash sha256 #...#))). We proceed by
# modifying this hash.
sed -i "$sig" \
-e's|#[A-Z0-9]\{64\}#|#0000000000000000000000000000000000000000000000000000000000000000#|g'
code="$(echo "verify $(cat $sig)" | guix authenticate | cut -f1 -d ' ')"
test "$code" -ne 0
# Test for <http://bugs.gnu.org/17312>: make sure 'guix authenticate' produces
# valid signatures when run in the C locale.
hash="5eff0b55c9c5f5e87b4e34cd60a2d5654ca1eb78c7b3c67c3179fed1cff07b4c"
LC_ALL=C
export LC_ALL
echo "sign $key_len:$key $hash_len:$hash" | guix authenticate > "$sig"
# Remove the leading "0".
sed -i "$sig" -e's/^0 //g'
echo "verify $(cat $sig)" | guix authenticate
hash2="$(echo "verify $(cat $sig)" | guix authenticate | cut -f2 -d ' ')"
test "$(echo $hash2 | cut -d : -f 2)" = "$hash"
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