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Use dedicated simple password retriever for size of future crypto disks modules and simplify entering passwords routines

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-06 20:11:50 +01:00
parent c0a6bd447e
commit b391bdb2f2
7 changed files with 71 additions and 46 deletions
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11
commands/password_pbkdf2.c
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@ -16,6 +16,7 @@
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/auth.h>
#include <grub/crypto.h>
#include <grub/list.h>
#include <grub/mm.h>
@ -36,23 +37,17 @@ struct pbkdf2_password
};
static grub_err_t
check_password (const char *user, void *pin)
check_password (const char *user, const char *entered, void *pin)
{
char entered[1024];
grub_uint8_t *buf;
struct pbkdf2_password *pass = pin;
gcry_err_code_t err;
grub_memset (entered, 0, sizeof (entered));
if (!GRUB_GET_PASSWORD (entered, sizeof (entered) - 1))
return GRUB_ACCESS_DENIED;
buf = grub_malloc (pass->buflen);
if (!buf)
return grub_crypto_gcry_error (GPG_ERR_OUT_OF_MEMORY);
err = grub_crypto_pbkdf2 (GRUB_MD_SHA512, (grub_uint8_t *) &entered,
err = grub_crypto_pbkdf2 (GRUB_MD_SHA512, (grub_uint8_t *) entered,
grub_strlen (entered),
pass->salt, pass->saltlen, pass->c,
buf, pass->buflen);