gpg: Implement searching keys via keygrip.

* kbx/keybox-defs.h (struct _keybox_openpgp_key_info): Add field grip.
* kbx/keybox-openpgp.c (struct keyparm_s): New.
(keygrip_from_keyparm): New.
(parse_key): Compute keygrip.
* kbx/keybox-search.c (blob_openpgp_has_grip): New.
(has_keygrip): Call it.
--

This has been marked for too long as not yet working.  However, it is
a pretty useful feature and will come pretty handy when looking for
all keys matching one keygrip.

Can be optimized a lot by storing the keygrip in the meta data.  This
will be done along with the upgrade of KBX for v5 fingerprints.

Signed-off-by: Werner Koch <[email protected]>
(cherry picked from commit c128667b3cba749dd14262e032d4c260a2b0acd3)

1 files changed, 18 insertions, 0 deletions

diff --git a/kbx/kbxutil.c b/kbx/kbxutil.c
index 07774f2d9..f156122e2 100644
--- a/kbx/kbxutil.c
+++ b/kbx/kbxutil.c
@@ -330,6 +330,18 @@ dump_fpr (const unsigned char *buffer, size_t len)
 
 
 static void
+dump_grip (const unsigned char *buffer, size_t len)
+{
+  int i;
+
+  for (i=0; i < len; i++, buffer++)
+    {
+      printf ("%02X", buffer[0]);
+    }
+}
+
+
+static void
 dump_openpgp_key (keybox_openpgp_info_t info, const unsigned char *image)
 {
   printf ("pub %2d %02X%02X%02X%02X",
@@ -338,6 +350,9 @@ dump_openpgp_key (keybox_openpgp_info_t info, const unsigned char *image)
           info->primary.keyid[6], info->primary.keyid[7] );
   dump_fpr (info->primary.fpr, info->primary.fprlen);
   putchar ('\n');
+  fputs ("grp             ", stdout);
+  dump_grip (info->primary.grip, 20);
+  putchar ('\n');
   if (info->nsubkeys)
     {
       struct _keybox_openpgp_key_info *k;
@@ -351,6 +366,9 @@ dump_openpgp_key (keybox_openpgp_info_t info, const unsigned char *image)
                   k->keyid[6], k->keyid[7] );
           dump_fpr (k->fpr, k->fprlen);
           putchar ('\n');
+          fputs ("grp             ", stdout);
+          dump_grip (k->grip, 20);
+          putchar ('\n');
           k = k->next;
         }
       while (k);