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gpg: Do not show RENC if no key capabilities are found for a key.

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* g10/packet.h (PUBKEY_USAGE_BASIC_MASK): New.
* g10/getkey.c (merge_selfsigs_subkey): Mask the default.
(merge_selfsigs_main): Ditto.
--
This commit is contained in:
Werner Koch 2024-06-05 10:00:05 +02:00
parent bc43812358
commit 1d91252205
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
2 changed files with 9 additions and 2 deletions
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6
g10/getkey.c
View File

@ -3137,7 +3137,8 @@ merge_selfsigs_main (ctrl_t ctrl, kbnode_t keyblock, int *r_revoked,
if (!key_usage)
{
/* No key flags at all: get it from the algo. */
key_usage = openpgp_pk_algo_usage (pk->pubkey_algo);
key_usage = (openpgp_pk_algo_usage (pk->pubkey_algo)
& PUBKEY_USAGE_BASIC_MASK);
}
else
{
@ -3411,7 +3412,8 @@ merge_selfsigs_subkey (ctrl_t ctrl, kbnode_t keyblock, kbnode_t subnode)
if (!key_usage)
{
/* No key flags at all: get it from the algo. */
key_usage = openpgp_pk_algo_usage (subpk->pubkey_algo);
key_usage = (openpgp_pk_algo_usage (subpk->pubkey_algo)
& PUBKEY_USAGE_BASIC_MASK);
}
else
{

5
g10/packet.h
View File

@ -60,6 +60,11 @@
#define PUBKEY_USAGE_RENC 1024 /* Restricted encryption. */
#define PUBKEY_USAGE_TIME 2048 /* Timestamp use. */
/* The usage bits which can be derived from the algo. */
#define PUBKEY_USAGE_BASIC_MASK (PUBKEY_USAGE_SIG|PUBKEY_USAGE_ENC\
|PUBKEY_USAGE_CERT|PUBKEY_USAGE_AUTH)
/* Helper macros. */
#define is_RSA(a) ((a)==PUBKEY_ALGO_RSA || (a)==PUBKEY_ALGO_RSA_E \
|| (a)==PUBKEY_ALGO_RSA_S )