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iceman1001 2024-05-27 20:29:02 +02:00
commit 369db7c9d7
14 changed files with 109 additions and 71 deletions
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10
armsrc/hitag2_crack.c
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@ -380,7 +380,7 @@ void ht2_crack2(uint8_t *nrar_hex) {
// We got 42 bits of keystream in c2->keybits.
// using the 40 bits of keystream in keybits, sending commands with ever
// increasing lengths to acquire 2048 bits of key stream.
// increasing lengths to acquire 2048 bits of key stream.
int kslen = 40;
int res = PM3_SUCCESS;
@ -409,17 +409,17 @@ void ht2_crack2(uint8_t *nrar_hex) {
uint8_t resp[4] = {0};
res = ht2_tx_rx(c2->e_ext_cmd, kslen, resp, &n, true, false);
if (res != PM3_SUCCESS) {
Dbprintf("tx/rx failed, got %zu (res... %i)", n, res);
Dbprintf("tx/rx failed, got %zu (res... %i)", n, res);
break;
}
// convert response to binarray
// convert response to binarray
hex2binarray_n((char *)e_response, (char *)resp, 4);
// recover keystream from encrypted response
hitag2crack_xor(c2->keybits + kslen, e_response, c2->uid, 32);
// extented with 30 bits or 3 * 10 read_p0_cmds
// extented with 30 bits or 3 * 10 read_p0_cmds
hitag2crack_xor(c2->e_ext_cmd + kslen, read_p0_cmd, c2->keybits + kslen, 10);
kslen += 10;
hitag2crack_xor(c2->e_ext_cmd + kslen, read_p0_cmd, c2->keybits + kslen, 10);
@ -437,5 +437,5 @@ void ht2_crack2(uint8_t *nrar_hex) {
reply_ng(CMD_LF_HITAG2_CRACK_2, res, (uint8_t *)packet, sizeof(lf_hitag_crack_response_t));
BigBuf_free();
return;
return;
}