RfidResearchGroup/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-01-10 02:04:39 +08:00
Code Issues Projects Releases Packages Wiki Activity

duplicate method

Browse source
This commit is contained in:
Eloff 2019-04-12 00:35:02 +03:00
parent 172748a82c
commit 15f2fb4010
1 changed files with 2 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
armsrc/mifaresim.c
View file

@ -370,12 +370,6 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, tag_response_info_t *
return true;
}
static bool HasValidCRC(uint8_t *receivedCmd, uint16_t receivedCmd_len) {
uint8_t CRC_byte_1, CRC_byte_2;
compute_crc(CRC_14443_A, receivedCmd, receivedCmd_len - 2, &CRC_byte_1, &CRC_byte_2);
return (receivedCmd[receivedCmd_len - 2] == CRC_byte_1 && receivedCmd[receivedCmd_len - 1] == CRC_byte_2);
}
/**
*MIFARE 1K simulate.
@ -772,7 +766,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len);
}
if (!HasValidCRC(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC
if (!CheckCrc14A(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] All commands must have a valid CRC %02X (%d)", receivedCmd_dec, receivedCmd_len);
break;
@ -1138,7 +1132,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
case MFEMUL_WRITEBL2: {
if (receivedCmd_len == MAX_MIFARE_FRAME_SIZE) {
mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, receivedCmd_dec);
if (HasValidCRC(receivedCmd_dec, receivedCmd_len)) {
if (CheckCrc14A(receivedCmd_dec, receivedCmd_len)) {
if (IsSectorTrailer(cardWRBL)) {
emlGetMem(response, cardWRBL, 1);
if (!IsAccessAllowed(cardWRBL, cardAUTHKEY, AC_KEYA_WRITE)) {