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gpg: Print info about the used AEAD algorithm.

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* g10/misc.c (openpgp_cipher_algo_mode_name): New.
* g10/decrypt-data.c (decrypt_data): Use function here.
--

With out this change we would see

  gpg: cipher algorithm 'AES256' may not be used in
  --compliance=de-vs mode

This is confusing because AES256 is compliant.  Now we see

  gpg: cipher algorithm 'AES256.OCB' may not be used in
  --compliance=de-vs mode

which gives a hint on the problem.
This commit is contained in:
Werner Koch 2022-03-18 13:50:18 +01:00
parent c145366549
commit 15eda7ce78
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GPG key ID: E3FDFF218E45B72B
3 changed files with 22 additions and 2 deletions
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18
g10/misc.c
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@ -608,6 +608,24 @@ openpgp_cipher_algo_name (cipher_algo_t algo)
}
/* Same as openpgp_cipher_algo_name but returns a string in the form
* "ALGO.MODE" if AEAD is not 0. Note that in this version we do not
* print "ALGO.CFB" as we do in 2.3 to avoid confusing users. */
const char *
openpgp_cipher_algo_mode_name (cipher_algo_t algo, aead_algo_t aead)
{
if (aead == AEAD_ALGO_NONE)
return openpgp_cipher_algo_name (algo);
return map_static_strings ("openpgp_cipher_algo_mode_name", algo, aead,
openpgp_cipher_algo_name (algo),
".",
openpgp_aead_algo_name (aead),
NULL);
}
/* Return 0 if ALGO is supported. Return an error if not. */
gpg_error_t
openpgp_aead_test_algo (aead_algo_t algo)