security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2025-07-02 22:46:30 +02:00
Code Activity

gpg: Improve passphrase caching.

Browse source 
* agent/cache.c (last_stored_cache_key): New.
(agent_get_cache): Allow NULL for KEY.
(agent_store_cache_hit): New.
* agent/findkey.c (unprotect): Call new function and try to use the
last stored key.

* g10/revoke.c (create_revocation): Add arg CACHE_NONCE and pass to
make_keysig_packet.
(gen_standard_revoke): Add arg CACHE_NONCE and pass to
create_revocation.
* g10/keygen.c (do_generate_keypair): Call gen_standard_revoke with
cache nonce.
--

This patch adds two features:

1. The key for the last passphrase successfully used for unprotecting
a key is stored away.  On a cache miss the stored away passphrase is
tried as well.  This helps for the common GPG use case of having a
signing and encryption (sub)key with the same passphrase.  See the
code for more comments.

2. The now auto-generated revocation certificate does not anymore
popup a passphrase prompt.  Thus for standard key generation the
passphrase needs to be given only once (well, two with the
confirmation).
This commit is contained in:
Werner Koch 2014-09-17 15:12:08 +02:00
parent 83c2d2396c
commit 457bce5cd3
6 changed files with 81 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

2
g10/keygen.c
View file

@ -4115,7 +4115,7 @@ do_generate_keypair (struct para_data_s *para,
update_ownertrust (pk, ((get_ownertrust (pk) & ~TRUST_MASK)
| TRUST_ULTIMATE ));
gen_standard_revoke (pk);
gen_standard_revoke (pk, cache_nonce);
if (!opt.batch)
{