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gpg: Make decryption with the OpenPGP card work.

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* scd/app-common.h (APP_DECIPHER_INFO_NOPAD): New.
* scd/app-openpgp.c (do_decipher): Add arg R_INFO.
* scd/app-nks.c (do_decipher): Add arg R_INFO as a dummy.
* scd/app.c (app_decipher): Add arg R_INFO.
* scd/command.c (cmd_pkdecrypt): Print status line "PADDING".
* agent/call-scd.c (padding_info_cb): New.
(agent_card_pkdecrypt): Add arg R_PADDING.
* agent/divert-scd.c (divert_pkdecrypt): Ditto.
* agent/pkdecrypt.c (agent_pkdecrypt): Ditto.
* agent/command.c (cmd_pkdecrypt):  Print status line "PADDING".
* g10/call-agent.c (padding_info_cb): New.
(agent_pkdecrypt): Add arg R_PADDING.
* g10/pubkey-enc.c (get_it): Use padding info.
--

Decryption using a card never worked in gpg 2.1 because the
information whether the pkcs#1 padding needs to be removed was not
available.  Gpg < 2.1 too this info from the secret sub key but that
has gone in 2.1.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2013-08-26 17:29:54 +02:00
parent 04e2c83f18
commit 780ba32336
16 changed files with 134 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

6
agent/agent.h
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@ -370,7 +370,7 @@ int agent_pksign (ctrl_t ctrl, const char *cache_nonce,
/*-- pkdecrypt.c --*/
int agent_pkdecrypt (ctrl_t ctrl, const char *desc_text,
const unsigned char *ciphertext, size_t ciphertextlen,
membuf_t *outbuf);
membuf_t *outbuf, int *r_padding);
/*-- genkey.c --*/
int check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent);
@ -425,7 +425,7 @@ int divert_pksign (ctrl_t ctrl,
int divert_pkdecrypt (ctrl_t ctrl,
const unsigned char *cipher,
const unsigned char *shadow_info,
char **r_buf, size_t *r_len);
char **r_buf, size_t *r_len, int *r_padding);
int divert_generic_cmd (ctrl_t ctrl,
const char *cmdline, void *assuan_context);
int divert_writekey (ctrl_t ctrl, int force, const char *serialno,
@ -459,7 +459,7 @@ int agent_card_pkdecrypt (ctrl_t ctrl,
int (*getpin_cb)(void *, const char *, char*,size_t),
void *getpin_cb_arg,
const unsigned char *indata, size_t indatalen,
char **r_buf, size_t *r_buflen);
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, unsigned char **r_buf);