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agent:kem:ecc: Support a key on smartcard.

* agent/agent.h (agent_card_ecc_kem): New.
* agent/divert-scd.c (agent_card_ecc_kem): New.
* agent/pkdecrypt.c (ecc_extract_pk_from_key): New.
(ecc_extract_sk_from_key): New.
(ecc_raw_kem, get_cardkey, ecc_get_curve): New.
(ecc_pgp_kem_decrypt): Support a key on smartcard for ECC.
(composite_pgp_kem_decrypt): Handle a case of a key on smartcard.
* common/sexputil.c (get_ecc_curve_from_key): New.
* common/util.h (get_ecc_curve_from_key): New.

--

GnuPG-bug-id: 7097
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2024-04-26 14:18:03 +09:00
parent 83e2dede0a
commit 9128d81bb7
No known key found for this signature in database
GPG key ID: 640114AF89DE6054
5 changed files with 288 additions and 74 deletions

View file

@ -705,6 +705,9 @@ gpg_error_t divert_writekey (ctrl_t ctrl, int force, const char *serialno,
const char *keyref,
const char *keydata, size_t keydatalen);
gpg_error_t agent_card_ecc_kem (ctrl_t ctrl, const unsigned char *ecc_ct,
size_t ecc_point_len, unsigned char *ecc_ecdh);
/*-- call-daemon.c --*/
gpg_error_t daemon_start (enum daemon_type type, ctrl_t ctrl);
assuan_context_t daemon_type_ctx (enum daemon_type type, ctrl_t ctrl);
@ -753,6 +756,7 @@ int agent_card_pkdecrypt (ctrl_t ctrl,
const char *desc_text,
const unsigned char *indata, size_t indatalen,
char **r_buf, size_t *r_buflen, int *r_padding);
int agent_card_readcert (ctrl_t ctrl,
const char *id, char **r_buf, size_t *r_buflen);
int agent_card_readkey (ctrl_t ctrl, const char *id,
@ -774,7 +778,6 @@ void agent_card_free_keyinfo (struct card_key_info_s *l);
gpg_error_t agent_card_keyinfo (ctrl_t ctrl, const char *keygrip,
int cap, struct card_key_info_s **result);
/*-- learncard.c --*/
int agent_handle_learn (ctrl_t ctrl, int send, void *assuan_context, int force);