guix-authenticate.sh 3.0 KB

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  1. # GNU Guix --- Functional package management for GNU
  2. # Copyright © 2013, 2014, 2020 Ludovic Courtès <ludo@gnu.org>
  3. #
  4. # This file is part of GNU Guix.
  5. #
  6. # GNU Guix is free software; you can redistribute it and/or modify it
  7. # under the terms of the GNU General Public License as published by
  8. # the Free Software Foundation; either version 3 of the License, or (at
  9. # your option) any later version.
  10. #
  11. # GNU Guix is distributed in the hope that it will be useful, but
  12. # WITHOUT ANY WARRANTY; without even the implied warranty of
  13. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. # GNU General Public License for more details.
  15. #
  16. # You should have received a copy of the GNU General Public License
  17. # along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
  18. #
  19. # Test the 'guix authenticate' command-line utility.
  20. #
  21. guix authenticate --version
  22. sig="t-signature-$$"
  23. hash="t-hash-$$"
  24. rm -f "$sig" "$hash"
  25. trap 'rm -f "$sig" "$hash"' EXIT
  26. key="$abs_top_srcdir/tests/signing-key.sec"
  27. key_len="`echo -n $key | wc -c`"
  28. # A hexadecimal string as long as a sha256 hash.
  29. hash="2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb"
  30. hash_len="`echo -n $hash | wc -c`"
  31. echo "sign $key_len:$key $hash_len:$hash" | guix authenticate > "$sig"
  32. test -f "$sig"
  33. case "$(cat $sig)" in
  34. "0 "*) ;;
  35. *) echo "broken signature: $(cat $sig)"
  36. exit 42;;
  37. esac
  38. # Remove the leading "0".
  39. sed -i "$sig" -e's/^0 //g'
  40. hash2="$(echo verify $(cat "$sig") | guix authenticate)"
  41. test "$(echo $hash2 | cut -d : -f 2)" = "$hash"
  42. # Detect corrupt signatures.
  43. code="$(echo "verify 5:wrong" | guix authenticate | cut -f1 -d ' ')"
  44. test "$code" -ne 0
  45. # Detect invalid signatures.
  46. # The signature has (payload (data ... (hash sha256 #...#))). We proceed by
  47. # modifying this hash.
  48. sed -i "$sig" \
  49. -e's|#[A-Z0-9]\{64\}#|#0000000000000000000000000000000000000000000000000000000000000000#|g'
  50. code="$(echo "verify $(cat $sig)" | guix authenticate | cut -f1 -d ' ')"
  51. test "$code" -ne 0
  52. # Make sure byte strings are correctly encoded. The hash string below is
  53. # "café" repeated 8 times. Libgcrypt would normally choose to write it as a
  54. # string rather than a hex sequence. We want that string to be Latin-1
  55. # encoded independently of the current locale: <https://bugs.gnu.org/43421>.
  56. hash="636166e9636166e9636166e9636166e9636166e9636166e9636166e9636166e9"
  57. latin1_cafe="caf$(printf '\351')"
  58. echo "sign 21:tests/signing-key.sec 64:$hash" | guix authenticate \
  59. | LC_ALL=C grep "hash sha256 \"$latin1_cafe"
  60. # Test for <http://bugs.gnu.org/17312>: make sure 'guix authenticate' produces
  61. # valid signatures when run in the C locale.
  62. hash="5eff0b55c9c5f5e87b4e34cd60a2d5654ca1eb78c7b3c67c3179fed1cff07b4c"
  63. LC_ALL=C
  64. export LC_ALL
  65. echo "sign $key_len:$key $hash_len:$hash" | guix authenticate > "$sig"
  66. # Remove the leading "0".
  67. sed -i "$sig" -e's/^0 //g'
  68. echo "verify $(cat $sig)" | guix authenticate
  69. hash2="$(echo "verify $(cat $sig)" | guix authenticate | cut -f2 -d ' ')"
  70. test "$(echo $hash2 | cut -d : -f 2)" = "$hash"