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Diffusion GnuPG 1a5d95e7319e

gpg: Check that a key may do certifications.

Description

gpg: Check that a key may do certifications.

* g10/sig-check.c (check_signature_end_simple): Check key usage for
certifications.
(check_signature_over_key_or_uid): Request usage certification.
  • GnuPG-bug-id: T3844
  • Signed-off-by: Werner Koch <wk@gnupg.org>