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gpg: Implement card_store_subkey again.
* g10/call-agent.h (agent_keytocard): New. * g10/call-agent.c (agent_keytocard): New. * g10/card-util.c (replace_existing_key_p): Returns 1 when replace. (card_generate_subkey): Check return value of replace_existing_key_p. (card_store_subkey): Implement again using agent_keytocard.
This commit is contained in:
NIIBE Yutaka
parent
30f8a3c873
commit
b90506ea22
@ -599,6 +599,30 @@ agent_learn (struct agent_card_info_s *info)
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return rc;
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}
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int
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agent_keytocard (const char *hexgrip, int keyno, int force,
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const char *serialno, const char *timestamp)
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{
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int rc;
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char line[ASSUAN_LINELENGTH];
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snprintf (line, DIM(line)-1, "KEYTOCARD %s%s %s OPENPGP.%d %s",
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force?"--force ": "", hexgrip, serialno, keyno, timestamp);
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line[DIM(line)-1] = 0;
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rc = start_agent (NULL, 1);
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if (rc)
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return rc;
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rc = assuan_transact (agent_ctx, line, NULL, NULL, default_inq_cb,
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NULL, NULL, NULL);
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if (rc)
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return rc;
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return rc;
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}
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/* Call the agent to retrieve a data object. This function returns
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the data in the same structure as used by the learn command. It is
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allowed to update such a structure using this commmand. */
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@ -81,6 +81,10 @@ int agent_learn (struct agent_card_info_s *info);
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/* Update INFO with the attribute NAME. */
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int agent_scd_getattr (const char *name, struct agent_card_info_s *info);
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/* Send the KEYTOCARD command. */
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int agent_keytocard (const char *hexgrip, int keyno, int force,
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const char *serialno, const char *timestamp);
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/* Send a SETATTR command to the SCdaemon. */
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int agent_scd_setattr (const char *name,
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const unsigned char *value, size_t valuelen,
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212
g10/card-util.c
212
g10/card-util.c
@ -1264,6 +1264,7 @@ replace_existing_key_p (struct agent_card_info_s *info, int keyno)
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if ( !cpr_get_answer_is_yes( "cardedit.genkeys.replace_key",
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_("Replace existing key? (y/N) ")))
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return -1;
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return 1;
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}
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return 0;
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}
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@ -1484,7 +1485,7 @@ card_generate_subkey (KBNODE pub_keyblock)
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tty_printf(_("Invalid selection.\n"));
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}
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if (replace_existing_key_p (&info, keyno))
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if (replace_existing_key_p (&info, keyno) < 0)
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{
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err = gpg_error (GPG_ERR_CANCELED);
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goto leave;
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@ -1531,152 +1532,99 @@ card_generate_subkey (KBNODE pub_keyblock)
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int
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card_store_subkey (KBNODE node, int use)
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{
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log_info ("FIXME: card_store_subkey has not yet been implemented\n");
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/* struct agent_card_info_s info; */
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/* int okay = 0; */
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/* int rc; */
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/* int keyno, i; */
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/* PKT_secret_key *copied_sk = NULL; */
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/* PKT_secret_key *sk; */
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/* size_t n; */
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/* const char *s; */
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/* int allow_keyno[3]; */
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/* unsigned int nbits; */
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struct agent_card_info_s info;
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int okay = 0;
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unsigned int nbits;
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int allow_keyno[3];
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int keyno;
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PKT_public_key *pk;
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gpg_error_t err;
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char *hexgrip;
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int rc;
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gnupg_isotime_t timebuf;
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assert (node->pkt->pkttype == PKT_PUBLIC_KEY
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|| node->pkt->pkttype == PKT_PUBLIC_SUBKEY);
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/* assert (node->pkt->pkttype == PKT_SECRET_KEY */
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/* || node->pkt->pkttype == PKT_SECRET_SUBKEY); */
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/* sk = node->pkt->pkt.secret_key; */
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pk = node->pkt->pkt.public_key;
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/* if (get_info_for_key_operation (&info)) */
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/* return 0; */
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if (get_info_for_key_operation (&info))
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return 0;
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/* if (!info.extcap.ki) */
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/* { */
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/* tty_printf ("The card does not support the import of keys\n"); */
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/* tty_printf ("\n"); */
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/* goto leave; */
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/* } */
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if (!info.extcap.ki)
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{
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tty_printf ("The card does not support the import of keys\n");
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tty_printf ("\n");
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goto leave;
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}
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/* show_card_key_info (&info); */
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nbits = nbits_from_pk (pk);
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/* nbits = nbits_from_sk (sk); */
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if (!is_RSA (pk->pubkey_algo) || (!info.is_v2 && nbits != 1024) )
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{
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tty_printf ("You may only store a 1024 bit RSA key on the card\n");
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tty_printf ("\n");
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goto leave;
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}
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/* if (!is_RSA (sk->pubkey_algo) || (!info.is_v2 && nbits != 1024) ) */
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/* { */
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/* tty_printf ("You may only store a 1024 bit RSA key on the card\n"); */
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/* tty_printf ("\n"); */
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/* goto leave; */
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/* } */
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allow_keyno[0] = (!use || (use & (PUBKEY_USAGE_SIG)));
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allow_keyno[1] = (!use || (use & (PUBKEY_USAGE_ENC)));
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allow_keyno[2] = (!use || (use & (PUBKEY_USAGE_SIG|PUBKEY_USAGE_AUTH)));
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/* allow_keyno[0] = (!use || (use & (PUBKEY_USAGE_SIG))); */
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/* allow_keyno[1] = (!use || (use & (PUBKEY_USAGE_ENC))); */
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/* allow_keyno[2] = (!use || (use & (PUBKEY_USAGE_SIG|PUBKEY_USAGE_AUTH))); */
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tty_printf (_("Please select where to store the key:\n"));
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/* tty_printf (_("Please select where to store the key:\n")); */
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if (allow_keyno[0])
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tty_printf (_(" (1) Signature key\n"));
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if (allow_keyno[1])
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tty_printf (_(" (2) Encryption key\n"));
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if (allow_keyno[2])
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tty_printf (_(" (3) Authentication key\n"));
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/* if (allow_keyno[0]) */
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/* tty_printf (_(" (1) Signature key\n")); */
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/* if (allow_keyno[1]) */
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/* tty_printf (_(" (2) Encryption key\n")); */
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/* if (allow_keyno[2]) */
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/* tty_printf (_(" (3) Authentication key\n")); */
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for (;;)
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{
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char *answer = cpr_get ("cardedit.genkeys.storekeytype",
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_("Your selection? "));
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cpr_kill_prompt();
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if (*answer == CONTROL_D || !*answer)
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{
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xfree (answer);
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goto leave;
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}
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keyno = *answer? atoi(answer): 0;
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xfree(answer);
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if (keyno >= 1 && keyno <= 3 && allow_keyno[keyno-1])
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{
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if (info.is_v2 && !info.extcap.aac
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&& info.key_attr[keyno-1].nbits != nbits)
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{
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tty_printf ("Key does not match the card's capability.\n");
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}
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else
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break; /* Okay. */
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}
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else
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tty_printf(_("Invalid selection.\n"));
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}
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/* for (;;) */
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/* { */
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/* char *answer = cpr_get ("cardedit.genkeys.storekeytype", */
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/* _("Your selection? ")); */
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/* cpr_kill_prompt(); */
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/* if (*answer == CONTROL_D || !*answer) */
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/* { */
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/* xfree (answer); */
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/* goto leave; */
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/* } */
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/* keyno = *answer? atoi(answer): 0; */
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/* xfree(answer); */
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/* if (keyno >= 1 && keyno <= 3 && allow_keyno[keyno-1]) */
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/* { */
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/* if (info.is_v2 && !info.extcap.aac */
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/* && info.key_attr[keyno-1].nbits != nbits) */
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/* { */
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/* tty_printf ("Key does not match the card's capability.\n"); */
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/* } */
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/* else */
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/* break; /\* Okay. *\/ */
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/* } */
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/* else */
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/* tty_printf(_("Invalid selection.\n")); */
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/* } */
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if ((rc = replace_existing_key_p (&info, keyno)) < 0)
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goto leave;
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/* if (replace_existing_key_p (&info, keyno)) */
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/* goto leave; */
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err = hexkeygrip_from_pk (pk, &hexgrip);
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if (err)
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goto leave;
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/* /\* Unprotect key. *\/ */
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/* switch (is_secret_key_protected (sk) ) */
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/* { */
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/* case 0: /\* Not protected. *\/ */
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/* break; */
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/* case -1: */
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/* log_error (_("unknown key protection algorithm\n")); */
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/* goto leave; */
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/* default: */
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/* if (sk->protect.s2k.mode == 1001) */
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/* { */
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/* log_error (_("secret parts of key are not available\n")); */
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/* goto leave; */
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/* } */
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/* if (sk->protect.s2k.mode == 1002) */
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/* { */
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/* log_error (_("secret key already stored on a card\n")); */
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/* goto leave; */
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/* } */
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/* /\* We better copy the key before we unprotect it. *\/ */
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/* copied_sk = sk = copy_secret_key (NULL, sk); */
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/* rc = 0/\*check_secret_key (sk, 0)*\/; */
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/* if (rc) */
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/* goto leave; */
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/* } */
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epoch2isotime (timebuf, (time_t)pk->timestamp);
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agent_keytocard (hexgrip, keyno, rc, info.serialno, timebuf);
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/* #warning code save_unprotected_key_to_card */
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/* /\* rc = save_unprotected_key_to_card (sk, keyno); *\/ */
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/* /\* if (rc) *\/ */
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/* /\* { *\/ */
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/* /\* log_error (_("error writing key to card: %s\n"), gpg_strerror (rc)); *\/ */
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/* /\* goto leave; *\/ */
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/* /\* } *\/ */
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if (rc)
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log_error (_("KEYTOCARD failed: %s\n"), gpg_strerror (rc));
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else
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okay = 1;
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xfree (hexgrip);
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/* /\* Get back to the maybe protected original secret key. *\/ */
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/* if (copied_sk) */
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/* { */
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/* free_secret_key (copied_sk); */
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/* copied_sk = NULL; */
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/* } */
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/* sk = node->pkt->pkt.secret_key; */
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/* /\* Get rid of the secret key parameters and store the serial numer. *\/ */
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/* n = pubkey_get_nskey (sk->pubkey_algo); */
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/* for (i=pubkey_get_npkey (sk->pubkey_algo); i < n; i++) */
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/* { */
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/* gcry_mpi_release (sk->skey[i]); */
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/* sk->skey[i] = NULL; */
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/* } */
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/* i = pubkey_get_npkey (sk->pubkey_algo); */
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/* sk->skey[i] = gcry_mpi_set_opaque (NULL, xstrdup ("dummydata"), 10*8); */
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/* sk->is_protected = 1; */
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/* sk->protect.s2k.mode = 1002; */
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/* s = info.serialno; */
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/* for (sk->protect.ivlen=0; sk->protect.ivlen < 16 && *s && s[1]; */
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/* sk->protect.ivlen++, s += 2) */
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/* sk->protect.iv[sk->protect.ivlen] = xtoi_2 (s); */
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/* okay = 1; */
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/* leave: */
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/* if (copied_sk) */
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/* free_secret_key (copied_sk); */
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/* agent_release_card_info (&info); */
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/* return okay; */
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return -1;
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leave:
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agent_release_card_info (&info);
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return okay;
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}
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