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gpg: Store Link attributes for composite keys.

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* g10/call-agent.c (agent_crosslink_keys): New.
* g10/keygen.c (common_gen): Store the Link attribute.
--

The Link attribute may be useful to quickly find the other part of a
composite private key.

GnuPG-bug-id: 6638
This commit is contained in:
Werner Koch 2025-02-07 11:10:09 +01:00
parent 00c31f8b04
commit 3738b0a99a
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
3 changed files with 57 additions and 0 deletions
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4
g10/call-agent.h
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@ -202,6 +202,10 @@ gpg_error_t agent_genkey (ctrl_t ctrl,
const char *passphrase, time_t timestamp,
gcry_sexp_t *r_pubkey);
/* Apply the Link attributes. */
gpg_error_t agent_crosslink_keys (ctrl_t ctrl,
const char *hexgrip1, const char *hexgrip2);
/* Read a public key. FROMCARD may be 0, 1, or 2. */
gpg_error_t agent_readkey (ctrl_t ctrl, int fromcard, const char *hexkeygrip,
unsigned char **r_pubkey);