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Save cached challenge length.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-06-10 18:58:35 +02:00
parent 332fe8c884
commit 32d0cdcea7
1 changed files with 12 additions and 1 deletions
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13
src/hsm/sc_hsm.c
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@@ -661,13 +661,15 @@ static int cmd_reset_retry() {
} }
static uint8_t challenge[256]; static uint8_t challenge[256];
static uint8_t challenge_len = 0;
static int cmd_challenge() { static int cmd_challenge() {
uint8_t *rb = (uint8_t *)random_bytes_get(apdu.ne); uint8_t *rb = (uint8_t *)random_bytes_get(apdu.ne);
if (!rb) if (!rb)
return SW_WRONG_LENGTH(); return SW_WRONG_LENGTH();
memcpy(res_APDU, rb, apdu.ne); memcpy(res_APDU, rb, apdu.ne);
memcpy(challenge, rb, MIN(apdu.ne, sizeof(challenge))); challenge_len = MIN(apdu.ne, sizeof(challenge));
memcpy(challenge, rb, challenge_len);
res_APDU_size = apdu.ne; res_APDU_size = apdu.ne;
return SW_OK(); return SW_OK();
} }
@@ -2293,6 +2295,13 @@ int cmd_pso() {
return SW_OK(); return SW_OK();
} }
int cmd_external_authenticate() {
if (P1(apdu) != 0x0 || P2(apdu) != 0x0)
return SW_INCORRECT_P1P2();
uint8_t *input = (uint8_t *)calloc(dev_name_len+8)
return SW_OK();
}
typedef struct cmd typedef struct cmd
{ {
uint8_t ins; uint8_t ins;
@@ -2318,6 +2327,7 @@ typedef struct cmd
#define INS_UNWRAP 0x74 #define INS_UNWRAP 0x74
#define INS_DERIVE_ASYM 0x76 #define INS_DERIVE_ASYM 0x76
#define INS_CIPHER_SYM 0x78 #define INS_CIPHER_SYM 0x78
#define INS_EXTERNAL_AUTHENTICATE 0x82
#define INS_CHALLENGE 0x84 #define INS_CHALLENGE 0x84
#define INS_GENERAL_AUTHENTICATE 0x86 #define INS_GENERAL_AUTHENTICATE 0x86
#define INS_SELECT_FILE 0xA4 #define INS_SELECT_FILE 0xA4
@@ -2353,6 +2363,7 @@ static const cmd_t cmds[] = {
{ INS_SESSION_PIN, cmd_session_pin }, { INS_SESSION_PIN, cmd_session_pin },
{ INS_PUK_AUTH, cmd_puk_auth }, { INS_PUK_AUTH, cmd_puk_auth },
{ INS_PSO, cmd_pso }, { INS_PSO, cmd_pso },
{ INS_EXTERNAL_AUTHENTICATE, cmd_external_authenticate },
{ 0x00, 0x0} { 0x00, 0x0}
}; };