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authorWerner Koch <[email protected]>2018-10-08 14:14:17 +0000
committerWerner Koch <[email protected]>2018-10-08 14:14:17 +0000
commitb6275f3bda8edff34274c5b921508567f491ab9c (patch)
tree965651c6397047f9c48f25db2b79a9712e9ce071 /g10/sig-check.c
parentgpg: Make --skip-hidden-recipients work again. (diff)
downloadgnupg-b6275f3bda8edff34274c5b921508567f491ab9c.tar.gz
gnupg-b6275f3bda8edff34274c5b921508567f491ab9c.zip
gpg: Fix extra check for sign usage of a data signature.
* g10/sig-check.c (check_signature_end_simple): -- Obviously we should not ignore a back signature here. Fixes-commit: 214b0077264e35c079e854a8b6374704aea45cd5 GnuPG-bug-id: 4014 Signed-off-by: Werner Koch <[email protected]>
Diffstat (limited to 'g10/sig-check.c')
-rw-r--r--g10/sig-check.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/g10/sig-check.c b/g10/sig-check.c
index 0ec384347..9c32d4d12 100644
--- a/g10/sig-check.c
+++ b/g10/sig-check.c
@@ -480,7 +480,8 @@ check_signature_end_simple (PKT_public_key *pk, PKT_signature *sig,
}
/* For data signatures check that the key has sign usage. */
- if (IS_SIG (sig) && !(pk->pubkey_usage & PUBKEY_USAGE_SIG))
+ if (!IS_BACK_SIG (sig) && IS_SIG (sig)
+ && !(pk->pubkey_usage & PUBKEY_USAGE_SIG))
{
rc = gpg_error (GPG_ERR_WRONG_KEY_USAGE);
if (!opt.quiet)