X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/7e735c1398b9c3643d292614db10c7e58c58db85..ff9c043da29150aa785723326537ba93ddac0614:/client/cmdhfmf.c diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c index 6b944df3..e6568f59 100644 --- a/client/cmdhfmf.c +++ b/client/cmdhfmf.c @@ -24,19 +24,20 @@ int usage_hf14_mifare(void){ return 0; } int usage_hf14_mf1ksim(void){ - PrintAndLog("Usage: hf mf sim [h] u n i x"); + PrintAndLog("Usage: hf mf sim [h] u n [i] [x] [e] [v]"); PrintAndLog("options:"); PrintAndLog(" h this help"); PrintAndLog(" u (Optional) UID 4,7 or 10bytes. If not specified, the UID 4b from emulator memory will be used"); PrintAndLog(" n (Optional) Automatically exit simulation after blocks have been read by reader. 0 = infinite"); PrintAndLog(" i (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted"); - PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)"); - PrintAndLog(" e (Optional) Fill simulator keys from what we crack"); - PrintAndLog(" v (Optional) Show maths used for cracking reader. Useful for debugging."); + PrintAndLog(" x (Optional) Crack, performs the 'reader attack', nr/ar attack against a reader"); + PrintAndLog(" e (Optional) Fill simulator keys from found keys"); + PrintAndLog(" v (Optional) Verbose"); PrintAndLog("samples:"); PrintAndLog(" hf mf sim u 0a0a0a0a"); PrintAndLog(" hf mf sim u 11223344556677"); PrintAndLog(" hf mf sim u 112233445566778899AA"); + PrintAndLog(" hf mf sim u 11223344 i x"); return 0; } int usage_hf14_dbg(void){ @@ -1360,18 +1361,16 @@ int CmdHF14AMfChk(const char *Cmd) { PrintAndLog(""); return 0; } -#define ATTACK_KEY_COUNT 8 + sector *k_sector = NULL; uint8_t k_sectorsCount = 16; -void readerAttack(nonces_t data[], bool setEmulatorMem, bool verbose) { +static void emptySectorTable(){ // initialize storage for found keys if (k_sector == NULL) k_sector = calloc(k_sectorsCount, sizeof(sector)); if (k_sector == NULL) return; - - uint64_t key = 0; // empty e_sector for(int i = 0; i < k_sectorsCount; ++i){ @@ -1380,67 +1379,47 @@ void readerAttack(nonces_t data[], bool setEmulatorMem, bool verbose) { k_sector[i].foundKey[0] = FALSE; k_sector[i].foundKey[1] = FALSE; } +} +void showSectorTable(){ + if (k_sector != NULL) { + printKeyTable(k_sectorsCount, k_sector); + free(k_sector); + k_sector = NULL; + } +} +void readerAttack(nonces_t data, bool setEmulatorMem, bool verbose) { - printf("enter reader attack\n"); - for (uint8_t i = 0; i < ATTACK_KEY_COUNT; ++i) { - - // if no-collected data - if (data[i].ar2 == 0) continue; - - // We can probably skip this, mfkey32v2 is more reliable. -#ifdef HFMF_TRYMFK32 - if (tryMfk32(data[i], &key, verbose)) { - PrintAndLog("Found Key%s for sector %02d: [%012"llx"]" - , (data[i].keytype) ? "B" : "A" - , data[i].sector - , key - ); - - k_sector[i].Key[data[i].keytype] = key; - k_sector[i].foundKey[data[i].keytype] = TRUE; - - //set emulator memory for keys - if (setEmulatorMem) { - uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0}; - num_to_bytes( k_sector[i].Key[0], 6, memBlock); - num_to_bytes( k_sector[i].Key[1], 6, memBlock+10); - PrintAndLog("Setting Emulator Memory Block %02d: [%s]" - , ((data[i].sector)*4) + 3 - , sprint_hex( memBlock, sizeof(memBlock)) - ); - mfEmlSetMem( memBlock, ((data[i].sector)*4) + 3, 1); - } - continue; - } -#endif - - //moebius attack - if (tryMfk32_moebius(data[i+ATTACK_KEY_COUNT], &key, verbose)) { - uint8_t sectorNum = data[i+ATTACK_KEY_COUNT].sector; - uint8_t keyType = data[i+ATTACK_KEY_COUNT].keytype; - - PrintAndLog("Found Key%s for sector %02d: [%012"llx"]" - , keyType ? "B" : "A" - , sectorNum - , key - ); - - k_sector[sectorNum].Key[keyType] = key; - k_sector[sectorNum].foundKey[keyType] = TRUE; - - //set emulator memory for keys - if (setEmulatorMem) { - uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0}; - num_to_bytes( k_sector[sectorNum].Key[0], 6, memBlock); - num_to_bytes( k_sector[sectorNum].Key[1], 6, memBlock+10); - //iceman, guessing this will not work so well for 4K tags. - PrintAndLog("Setting Emulator Memory Block %02d: [%s]" - , (sectorNum*4) + 3 - , sprint_hex( memBlock, sizeof(memBlock)) - ); - mfEmlSetMem( memBlock, (sectorNum*4) + 3, 1); - } - continue; + uint64_t key = 0; + bool success = FALSE; + + if (k_sector == NULL) + emptySectorTable(); + + success = tryMfk32_moebius(data, &key, verbose); + if (success) { + uint8_t sector = data.sector; + uint8_t keytype = data.keytype; + + PrintAndLog("Reader is trying authenticate with: Key %s, sector %02d: [%012"llx"]" + , keytype ? "B" : "A" + , sector + , key + ); + + k_sector[sector].Key[keytype] = key; + k_sector[sector].foundKey[keytype] = TRUE; + + //set emulator memory for keys + if (setEmulatorMem) { + uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0}; + num_to_bytes( k_sector[sector].Key[0], 6, memBlock); + num_to_bytes( k_sector[sector].Key[1], 6, memBlock+10); + //iceman, guessing this will not work so well for 4K tags. + PrintAndLog("Setting Emulator Memory Block %02d: [%s]" + , (sector*4) + 3 + , sprint_hex( memBlock, sizeof(memBlock)) + ); + mfEmlSetMem( memBlock, (sector*4) + 3, 1); } } } @@ -1451,18 +1430,17 @@ int CmdHF14AMf1kSim(const char *Cmd) { uint8_t exitAfterNReads = 0; uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA); int uidlen = 0; - bool setEmulatorMem = false; uint8_t cmdp = 0; - bool errors = false; - - // If set to true, we should show our workings when doing NR_AR_ATTACK. - bool verbose = false; - + bool errors = FALSE; + bool verbose = FALSE; + bool setEmulatorMem = FALSE; + nonces_t data[1]; + while(param_getchar(Cmd, cmdp) != 0x00) { switch(param_getchar(Cmd, cmdp)) { case 'e': case 'E': - setEmulatorMem = true; + setEmulatorMem = TRUE; cmdp++; break; case 'h': @@ -1487,11 +1465,11 @@ int CmdHF14AMf1kSim(const char *Cmd) { case 8: flags = FLAG_4B_UID_IN_DATA; break; default: return usage_hf14_mf1ksim(); } - cmdp +=2; + cmdp += 2; break; case 'v': case 'V': - verbose = true; + verbose = TRUE; cmdp++; break; case 'x': @@ -1501,7 +1479,7 @@ int CmdHF14AMf1kSim(const char *Cmd) { break; default: PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); - errors = true; + errors = TRUE; break; } if(errors) break; @@ -1519,28 +1497,20 @@ int CmdHF14AMf1kSim(const char *Cmd) { memcpy(c.d.asBytes, uid, sizeof(uid)); clearCommandBuffer(); SendCommand(&c); + UsbCommand resp; - if(flags & FLAG_INTERACTIVE) { + if(flags & FLAG_INTERACTIVE) { PrintAndLog("Press pm3-button or send another cmd to abort simulation"); - nonces_t data[ATTACK_KEY_COUNT*2]; - UsbCommand resp; - while( !ukbhit() ){ if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue; - if ( !(flags & FLAG_NR_AR_ATTACK) ) break; if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break; - memcpy( data, resp.d.asBytes, sizeof(data) ); - readerAttack(data, setEmulatorMem, verbose); - } - - if (k_sector != NULL) { - printKeyTable(k_sectorsCount, k_sector ); - free(k_sector); - k_sector = NULL; + memcpy(data, resp.d.asBytes, sizeof(data)); + readerAttack(data[0], setEmulatorMem, verbose); } + showSectorTable(); } return 0; }