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Mfp read plain (#704)

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* added aes-cmac-128
* aes-cmac added to cryptosystem. not works(
This commit is contained in:
Oleg Moiseenko 2018-10-26 20:18:53 +03:00 • committed by pwpiwi
commit c8a0f55031
10 changed files with 836 additions and 10 deletions
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50
client/mifare4.c
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@ -16,6 +16,18 @@
#include "ui.h"
#include "polarssl/libpcrypto.h"
int CalculateMAC(mf4Session *session, uint8_t *data, int datalen, uint8_t *mac, bool verbose) {
if (!session || !session->Authenticated || !mac || !data || !datalen)
return 1;
memset(mac, 0x00, 8);
if (verbose)
PrintAndLog("MAC data[%d]: %s", datalen, sprint_hex(data, datalen));
return aes_cmac8(NULL, session->Key, data, mac, datalen);
}
int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateField, bool leaveSignalON, bool verbose) {
uint8_t data[257] = {0};
int datalen = 0;
@ -71,7 +83,7 @@ int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateF
if (verbose)
PrintAndLog(">phase2: %s", sprint_hex(cmd2, 33));
res = ExchangeRAW14a(cmd2, sizeof(cmd2), false, false, data, sizeof(data), &datalen);
res = ExchangeRAW14a(cmd2, sizeof(cmd2), false, true, data, sizeof(data), &datalen);
if (res) {
PrintAndLog("ERROR exchande raw error: %d", res);
DropField();
@ -109,6 +121,7 @@ int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateF
session->KeyNum = keyn[1] + (keyn[0] << 8);
memmove(session->Rnd1, Rnd1, 16);
memmove(session->Rnd2, Rnd2, 16);
memmove(session->Key, key, 16);
}
PrintAndLog("Authentication OK");
@ -116,3 +129,38 @@ int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateF
return 0;
}
// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),
// plus evtl. 8 sectors with 16 blocks each (4k cards)
uint8_t mfNumBlocksPerSector(uint8_t sectorNo) {
if (sectorNo < 32)
return 4;
else
return 16;
}
uint8_t mfFirstBlockOfSector(uint8_t sectorNo) {
if (sectorNo < 32)
return sectorNo * 4;
else
return 32 * 4 + (sectorNo - 32) * 16;
}
uint8_t mfSectorTrailer(uint8_t blockNo) {
if (blockNo < 32*4) {
return (blockNo | 0x03);
} else {
return (blockNo | 0x0f);
}
}
bool mfIsSectorTrailer(uint8_t blockNo) {
return (blockNo == mfSectorTrailer(blockNo));
}
uint8_t mfSectorNum(uint8_t blockNo) {
if (blockNo < 32 * 4)
return blockNo / 4;
else
return 32 + (blockNo - 32 * 4) / 16;
}