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This commit is contained in:
iceman1001 2023-10-18 20:34:35 +02:00
commit 1f3cf80898
16 changed files with 139 additions and 107 deletions
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45
armsrc/sam_picopass.c
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@ -57,9 +57,9 @@ static int sam_rxtx(const uint8_t *data, uint16_t n, uint8_t *resp, uint16_t *re
uint16_t more_len = 0;
if (resp[*resplen - 2] == 0x61 || resp[*resplen - 2] == 0x9F) {
more_len = resp[*resplen - 1];
more_len = resp[*resplen - 1];
} else {
// we done, return
// we done, return
goto out;
}
@ -113,7 +113,8 @@ int sam_picopass_get_pacs(void) {
clear_trace();
I2C_Reset_EnterMainProgram(); StopTicks();
I2C_Reset_EnterMainProgram();
StopTicks();
uint8_t *resp = BigBuf_calloc(ISO7816_MAX_FRAME);
@ -212,7 +213,7 @@ int sam_picopass_get_pacs(void) {
// -----------------------------------------------------------------------------
// SAM comms
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
size_t sam_len = 0;
uint8_t *sam_apdu = BigBuf_calloc(ISO7816_MAX_FRAME);
@ -227,7 +228,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 1",resp, resp_len);
print_dbg("-- 1", resp, resp_len);
// -----------------------------------------------------------------------------
// second
@ -237,9 +238,9 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 2",resp, resp_len);
print_dbg("-- 2", resp, resp_len);
// TAG response
// TAG response
// -- 0c 05 de64 // read block 5
// Tag|c00a140a000000a110a10e8004 0c05de64 8102 0004 820201f4
@ -256,7 +257,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 3",resp, resp_len);
print_dbg("-- 3", resp, resp_len);
// 88 02 -- readcheck (block2 epurse, start of auth)
// Tag|c00a140a000000a10ea10c8002 8802 8102 0004 820201f4 9000
@ -272,29 +273,29 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 4",resp, resp_len);
print_dbg("-- 4", resp, resp_len);
uint8_t nr_mac[9] = {0};
memcpy(nr_mac, resp + 11, sizeof(nr_mac));
// resp here hold the whole NR/MAC
// 05 9bcd475e965ee20e // CHECK (w key)
print_dbg("NR/MAC",nr_mac, sizeof(nr_mac));
print_dbg("NR/MAC", nr_mac, sizeof(nr_mac));
// c00a140a000000a115a1138009 059bcd475e965ee20e 8102 0004 820201f4 9000
// pre calc ourself?
// uint8_t cc_nr[] = {0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0, 0, 0, 0};
uint8_t div_key[8] = {0};
static uint8_t legacy_aa1_key[] = {0xAE, 0xA6, 0x84, 0xA6, 0xDA, 0xB2, 0x32, 0x78};
static uint8_t legacy_aa1_key[] = {0xAE, 0xA6, 0x84, 0xA6, 0xDA, 0xB2, 0x32, 0x78};
iclass_calc_div_key(hdr.csn, legacy_aa1_key, div_key, false);
uint8_t mac[4] = {0};
if (g_dbglevel == DBG_DEBUG) {
if (g_dbglevel == DBG_DEBUG) {
uint8_t wb[16] = {0};
memcpy(wb, hdr.epurse, sizeof(hdr.epurse));
memcpy(wb + sizeof(hdr.epurse), nr_mac+1, 4);
memcpy(wb + sizeof(hdr.epurse), nr_mac + 1, 4);
print_dbg("cc_nr...", wb, sizeof(wb));
doMAC_N(wb, sizeof(wb), div_key, mac);
doMAC_N(wb, sizeof(wb), div_key, mac);
print_dbg("Calc MAC...", mac, sizeof(mac));
}
@ -315,8 +316,8 @@ int sam_picopass_get_pacs(void) {
goto out;
}
// store MAC
memcpy(mac, resp, sizeof(mac));
print_dbg("Got MAC",mac,sizeof(mac));
memcpy(mac, resp, sizeof(mac));
print_dbg("Got MAC", mac, sizeof(mac));
// -----------------------------------------------------------------------------
// fifth send received MAC
@ -328,7 +329,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 5",resp, resp_len);
print_dbg("-- 5", resp, resp_len);
uint8_t tmp_p1[4] = {0};
uint8_t tmp_p2[4] = {0};
@ -350,7 +351,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 6",resp, resp_len);
print_dbg("-- 6", resp, resp_len);
// c1 61 c1 00 00 a1 10 a1 0e 80 04 0c 06 45 56 81 02 00 04 82 02 01 f4 90 00
// read block 6
@ -364,7 +365,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("Block 6 from Picopass",resp, resp_len);
print_dbg("Block 6 from Picopass", resp, resp_len);
// -----------------------------------------------------------------------------
// eight send block 6 config to SAM
@ -391,7 +392,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("Block 6-9 from Picopass",resp, resp_len);
print_dbg("Block 6-9 from Picopass", resp, resp_len);
// -----------------------------------------------------------------------------
// nine send credential blocks to SAM
@ -403,7 +404,7 @@ int sam_picopass_get_pacs(void) {
res = PM3_ECARDEXCHANGE;
goto out;
}
print_dbg("-- 8",resp, resp_len);
print_dbg("-- 8", resp, resp_len);
// -----------------------------------------------------------------------------
@ -438,7 +439,7 @@ out:
off:
switch_off();
BigBuf_free();
BigBuf_free();
return res;
}