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Changed ASN1 calls for easier calls.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2024-03-13 17:16:35 +01:00
parent caddf87c23
commit f88e786c04
4 changed files with 82 additions and 35 deletions
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13
src/eac.c
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@@ -113,7 +113,10 @@ int sm_unwrap() {
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL;
uint16_t tag_len = 0;
while (walk_tlv(apdu.data, (uint16_t)apdu.nc, &p, &tag, &tag_len, &tag_data)) {
asn1_ctx_t ctxi;
asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data))
{
if (tag == 0x87 || tag == 0x85) {
body = tag_data;
body_size = tag_len;
@@ -209,7 +212,9 @@ uint16_t sm_get_le() {
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL;
uint16_t tag_len = 0;
while (walk_tlv(apdu.data, (uint16_t)apdu.nc, &p, &tag, &tag_len, &tag_data)) {
asn1_ctx_t ctxi;
asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
if (tag == 0x97) {
uint16_t le = 0;
for (uint16_t t = 1; t <= tag_len; t++) {
@@ -266,7 +271,9 @@ int sm_verify() {
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL;
uint16_t tag_len = 0;
while (walk_tlv(apdu.data, (uint16_t)apdu.nc, &p, &tag, &tag_len, &tag_data)) {
asn1_ctx_t ctxi;
asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
if (tag & 0x1) {
input[input_len++] = (uint8_t)tag;
uint8_t tlen = format_tlv_len(tag_len, input + input_len);