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Decryption using a Cryptoflex card does now work.

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This commit is contained in:
Werner Koch 2002-03-06 09:01:12 +00:00
parent 914e77c133
commit 303b4bd636
11 changed files with 305 additions and 30 deletions
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53
agent/call-scd.c
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@ -403,3 +403,56 @@ agent_card_pksign (const char *keyid,
return 0;
}
/* Decipher INDATA using the current card. Note that the returned value is */
int
agent_card_pkdecrypt (const char *keyid,
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)
{
int rc, i;
char *p, line[ASSUAN_LINELENGTH];
struct membuf data;
struct inq_needpin_s inqparm;
size_t len;
*r_buf = NULL;
rc = start_scd ();
if (rc)
return rc;
/* FIXME: use secure memory where appropriate */
if (indatalen*2 + 50 > DIM(line))
return seterr (General_Error);
sprintf (line, "SETDATA ");
p = line + strlen (line);
for (i=0; i < indatalen ; i++, p += 2 )
sprintf (p, "%02X", indata[i]);
rc = assuan_transact (scd_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
if (rc)
return map_assuan_err (rc);
init_membuf (&data, 1024);
inqparm.ctx = scd_ctx;
inqparm.getpin_cb = getpin_cb;
inqparm.getpin_cb_arg = getpin_cb_arg;
snprintf (line, DIM(line)-1, "PKDECRYPT %s", keyid);
line[DIM(line)-1] = 0;
rc = assuan_transact (scd_ctx, line,
membuf_data_cb, &data,
inq_needpin, &inqparm,
NULL, NULL);
if (rc)
{
xfree (get_membuf (&data, &len));
return map_assuan_err (rc);
}
*r_buf = get_membuf (&data, r_buflen);
if (!*r_buf)
return GNUPG_Out_Of_Core;
return 0;
}