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# GNU Guix --- Functional package management for GNU
# Copyright © 2013, 2014 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
# A hexadecimal string as long as a sha256 hash.
echo "2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb" \
> "$hash"
guix authenticate rsautl -sign \
-inkey "$abs_top_srcdir/tests/signing-key.sec" \
-in "$hash" > "$sig"
test -f "$sig"
hash2="`guix authenticate rsautl -verify \
-inkey $abs_top_srcdir/tests/signing-key.pub \
-pubin -in $sig`"
test "$hash2" = `cat "$hash"`
# Same thing in a pipeline, using the command line syntax that Nix/Crypto.pm
# uses.
hash2="` \
cat "$hash" \
| guix authenticate rsautl -sign \
-inkey "$abs_top_srcdir/tests/signing-key.sec" \
| guix authenticate rsautl -verify \
-inkey $abs_top_srcdir/tests/signing-key.pub \
-pubin`"
test "$hash2" = `cat "$hash"`
# Detect corrupt signatures.
if guix authenticate rsautl -verify \
-inkey "$abs_top_srcdir/tests/signing-key.pub" \
-pubin -in /dev/null
then false
else true
fi
# Detect invalid signatures.
# The signature has (payload (data ... (hash sha256 #...#))). We proceed by
# modifying this hash.
sed -i "$sig" \
-e's|#[A-Z0-9]\{64\}#|#0000000000000000000000000000000000000000000000000000000000000000#|g'
if guix authenticate rsautl -verify \
-inkey "$abs_top_srcdir/tests/signing-key.pub" \
-pubin -in "$sig"
then false
else true
fi
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