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Adding INS_CHALLENGE for DKEK generation.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-02-17 19:50:12 +01:00
parent 4ccc457fab
commit 633f005efd
1 changed files with 9 additions and 0 deletions
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9
sc_hsm.c
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@@ -1,6 +1,7 @@
#include "sc_hsm.h" #include "sc_hsm.h"
#include "file.h" #include "file.h"
#include "libopensc/card-sc-hsm.h" #include "libopensc/card-sc-hsm.h"
#include "random.h"
const uint8_t sc_hsm_aid[] = { const uint8_t sc_hsm_aid[] = {
11, 11,
@@ -267,6 +268,12 @@ static int cmd_reset_retry() {
} }
} }
static int cmd_challenge() {
memcpy(res_APDU, random_bytes_get(), apdu.expected_res_size);
res_APDU_size = apdu.expected_res_size;
return SW_OK();
}
typedef struct cmd typedef struct cmd
{ {
uint8_t ins; uint8_t ins;
@@ -278,6 +285,7 @@ typedef struct cmd
#define INS_READ_BINARY_ODD 0xB1 #define INS_READ_BINARY_ODD 0xB1
#define INS_VERIFY 0x20 #define INS_VERIFY 0x20
#define INS_RESET_RETRY 0x2C #define INS_RESET_RETRY 0x2C
#define INS_CHALLENGE 0x84
static const cmd_t cmds[] = { static const cmd_t cmds[] = {
{ INS_SELECT_FILE, cmd_select }, { INS_SELECT_FILE, cmd_select },
@@ -286,6 +294,7 @@ static const cmd_t cmds[] = {
{ INS_READ_BINARY_ODD, cmd_read_binary }, { INS_READ_BINARY_ODD, cmd_read_binary },
{ INS_VERIFY, cmd_verify }, { INS_VERIFY, cmd_verify },
{ INS_RESET_RETRY, cmd_reset_retry }, { INS_RESET_RETRY, cmd_reset_retry },
{ INS_CHALLENGE, cmd_challenge },
{ 0x00, 0x0} { 0x00, 0x0}
}; };