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gpg,gpgsm: Fix compliance check for DSA and avoid an assert.

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* common/compliance.c (gnupg_pk_is_compliant): Swap P and Q for DSA
check.  Explicitly check for allowed ECC algos.
(gnupg_pk_is_allowed): Swap P and Q for DSA check.
* g10/mainproc.c (proc_encrypted): Simplify SYMKEYS check.  Replace
assert by debug message.

--

Note that in mainproc.c SYMKEYS is unsigned and thus a greater than 0
condition is surprising because it leads to the assumption SYMKEYS
could be negative.  Better use a boolean test.

The assert could have lead to a regression for no good reason.  Not
being compliant is better than breaking existing users.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2017-06-19 17:50:02 +02:00
parent 6cc4702767
commit 3621dbe525
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GPG key ID: E3FDFF218E45B72B
4 changed files with 30 additions and 23 deletions
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7
sm/decrypt.c
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@ -493,9 +493,10 @@ gpgsm_decrypt (ctrl_t ctrl, int in_fd, estream_t out_fp)
}
/* Check that all certs are compliant with CO_DE_VS. */
is_de_vs = (is_de_vs
&& gnupg_pk_is_compliant (CO_DE_VS, pk_algo, NULL,
nbits, NULL));
is_de_vs =
(is_de_vs
&& gnupg_pk_is_compliant (CO_DE_VS, pk_algo, NULL,
nbits, NULL));
}
oops: