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gpg: Fix flaw in symmetric algorithm selection in mixed mode.

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* g10/encrypt.c (setup_symkey): Use default_cipher_algo function
instead of the fallback s2k_cipher_algo.  Fix error code.
(encrypt_simple): Use setup_symkey.
--

Aside of removing code duplication this patch fixes the flaw that the
S2K cipher algorithm was used when mixing public key and symmetric
encryption or signatures with symmetric encrypion.  The
default_algorithm function should be used here so that the command
line option --cipher-algo and --personal-cipher-preferences have an
effect.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-07-07 12:58:29 +02:00
parent 969abcf40c
commit 6864bba78e
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GPG key ID: E3FDFF218E45B72B
3 changed files with 10 additions and 18 deletions
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2
g10/passphrase.c
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@ -268,7 +268,7 @@ passphrase_to_dek (int cipher_algo, STRING2KEY *s2k,
*canceled = 0;
if (opt.no_symkey_cache)
nocache = 1; /* Force no symmtric key caching. */
nocache = 1; /* Force no symmetric key caching. */
if ( !s2k )
{