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Adding key wrap support.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos 2022-03-04 23:23:15 +01:00
parent 64cf9097e3
commit a29b01cdd8
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GPG key ID: C0095B7870A4CCD3
1 changed files with 17 additions and 1 deletions
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18
sc_hsm.c
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@ -412,7 +412,6 @@ static int cmd_challenge() {
}
static int cmd_initialize() {
printf("cmd initialize\r\n");
initialize_flash(true);
scan_flash();
dkeks = 0;
@ -1317,6 +1316,21 @@ static int cmd_signature() {
return SW_OK();
}
static int cmd_key_wrap() {
int key_id = P1(apdu);
if (P2(apdu) != 0x92)
return SW_WRONG_P1P2();
if (!isUserAuthenticated)
return SW_SECURITY_STATUS_NOT_SATISFIED();
file_t *ef = search_dynamic_file((KEY_PREFIX << 8) | key_id);
if (!ef)
return SW_FILE_NOT_FOUND();
int key_len = file_read_uint16(ef->data);
memcpy(res_APDU, file_read(ef->data+2), key_len);
res_APDU_size = key_len;
return SW_OK();
}
typedef struct cmd
{
uint8_t ins;
@ -1332,6 +1346,7 @@ typedef struct cmd
#define INS_IMPORT_DKEK 0x52
#define INS_LIST_KEYS 0x58
#define INS_SIGNATURE 0x68
#define INS_WRAP 0x72
#define INS_CHALLENGE 0x84
#define INS_SELECT_FILE 0xA4
#define INS_READ_BINARY 0xB0
@ -1355,6 +1370,7 @@ static const cmd_t cmds[] = {
{ INS_CHANGE_PIN, cmd_change_pin },
{ INS_KEY_GEN, cmd_key_gen },
{ INS_SIGNATURE, cmd_signature },
{ INS_WRAP, cmd_key_wrap },
{ 0x00, 0x0}
};