int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe) {
uint8_t oldblock0[16] = {0x00};
uint8_t block0[16] = {0x00};
int old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER);
if (old == 0) {
memcpy(block0, oldblock0, 16);
PrintAndLog("old block 0: %s", sprint_hex(block0,16));
} else {
PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0.");
}
// fill in the new values
// UID
memcpy(block0, uid, 4);
// Mifare UID BCC
block0[4] = block0[0]^block0[1]^block0[2]^block0[3];
// mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed)
if (sak!=NULL)
block0[5]=sak[0];
if (atqa!=NULL) {
block0[6]=atqa[1];
block0[7]=atqa[0];
}
PrintAndLog("new block 0: %s", sprint_hex(block0,16));
return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);
}
int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, uint8_t wipecard) {
uint8_t params = MAGIC_SINGLE;
uint8_t block0[16];
memset(block0, 0x00, sizeof(block0));
int old = mfCGetBlock(0, block0, params);
if (old == 0)
PrintAndLog("old block 0: %s", sprint_hex(block0, sizeof(block0)));
else
PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0.");
// fill in the new values
// UID
memcpy(block0, uid, 4);
// Mifare UID BCC
block0[4] = block0[0]^block0[1]^block0[2]^block0[3];
// mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed)
if ( sak != NULL )
block0[5]=sak[0];
if ( atqa != NULL ) {
block0[6]=atqa[1];
block0[7]=atqa[0];
}
PrintAndLog("new block 0: %s", sprint_hex(block0,16));
if ( wipecard ) params |= MAGIC_WIPE;
if ( oldUID == NULL) params |= MAGIC_UID;
return mfCSetBlock(0, block0, oldUID, params);
}
