[git] GnuPG - branch, STABLE-BRANCH-2-0, updated. gnupg-2.0.30-9-gb531f2f

[by NIIBE Yutaka]

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- Log -----------------------------------------------------------------
commit b531f2fd75be3f616073cba714d73324525fd3e4
Author: NIIBE Yutaka <gniibe at fsij.org>
Date:   Sat Jul 9 10:20:02 2016 +0900

    gpgv: Tweak default options for extra security.
    
    * g10/gpgv.c (main): Set opt.no_sig _cache, so that it doesn't depend on
    cached status.  Similarly, set opt.flags.require_cross_cert for backsig
    validation for subkey signature.
    
    --
    
    (backport of master
    commit e32c575e0f3704e7563048eea6d26844bdfc494b)
    
    It is common that an organization distributes binary keyrings with
    signature cache (Tag 12, Trust Packet) and people use gpgv to validate
    signature with such keyrings.  In such a use case, it is possible that
    the key validation itself is skipped.
    
    For the purpose of gpgv validation of signatures, we should not depend
    on signature cache in keyrings (if any), but we should validate the key
    by its self signature for primary key, and back signature for subkey.
    
    Signed-off-by: NIIBE Yutaka <gniibe at fsij.org>

diff --git a/g10/gpgv.c b/g10/gpgv.c
index b700f17..3b48a0e 100644
--- a/g10/gpgv.c
+++ b/g10/gpgv.c
@@ -163,6 +163,8 @@ main( int argc, char **argv )
   opt.pgp2_workarounds = 1;
   opt.keyserver_options.options|=KEYSERVER_AUTO_KEY_RETRIEVE;
   opt.trust_model = TM_ALWAYS;
+  opt.no_sig_cache = 1;
+  opt.flags.require_cross_cert = 1;
   opt.batch = 1;
 
   opt.homedir = default_homedir ();

-----------------------------------------------------------------------

Summary of changes:
 g10/gpgv.c | 2 ++
 1 file changed, 2 insertions(+)


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