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Diffusion GnuPG 3ddb622f4db9

gpg: Don't call gcry_kdf_derive with empty passphrase.

Description

gpg: Don't call gcry_kdf_derive with empty passphrase.

* g10/passphrase.c (passphrase_to_dek): Return NULL when PW is empty,
not raising an error by gcry_kdf_derive.
  • GnuPG-bug-id: T7339
  • Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>