#include "common.h"
#include "cmdmain.h"
#include "mifare.h"
+#include "cmdhfmfu.h"
+#include "nonce2key/crapto1.h"
+
+#define llx PRIx64
static int CmdHelp(const char *Cmd);
static void waitCmd(uint8_t iLen);
uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision
if(select_status == 0) {
- PrintAndLog("iso14443a card select failed");
+ if (Cmd[0] != 's') PrintAndLog("iso14443a card select failed");
// disconnect
c.arg[0] = 0;
c.arg[1] = 0;
switch (card.sak) {
case 0x00:
+
+ //***************************************test****************
+ ul_switch_off_field();
+
+ uint16_t tagT = GetHF14AMfU_Type();
+ ul_print_type(tagT, 0);
+
+ //reconnect for further tests
+ c.arg[0] = ISO14A_CONNECT | ISO14A_NO_DISCONNECT;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+
+ SendCommand(&c);
+
+ UsbCommand resp;
+ WaitForResponse(CMD_ACK,&resp);
+
+ memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
+
+ select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
+
+ if(select_status == 0) {
+ ul_switch_off_field();
+ return 0;
+ }
+
+ /* orig
// check if the tag answers to GETVERSION (0x60)
c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
c.arg[1] = 1;
case 0x01:PrintAndLog("TYPE : NXP MIFARE Ultralight C");break;
case 0x00:PrintAndLog("TYPE : NXP MIFARE Ultralight");break;
}
-
+ */
break;
case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
}
// Double & triple sized UID, can be mapped to a manufacturer.
- // HACK: does this apply for Ultralight cards?
if ( card.uidlen > 4 ) {
PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
}
return 1;
}
+
+static int usage_hf_14a_sim(void)
+{
+ PrintAndLog("\n Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID\n");
+ PrintAndLog("Usage: hf 14a sim t <type> u <uid> x");
+ PrintAndLog(" Options : ");
+ PrintAndLog(" h : this help");
+ PrintAndLog(" t : 1 = MIFARE Classic");
+ PrintAndLog(" 2 = MIFARE Ultralight");
+ PrintAndLog(" 3 = MIFARE Desfire");
+ PrintAndLog(" 4 = ISO/IEC 14443-4");
+ PrintAndLog(" 5 = MIFARE Tnp3xxx");
+ PrintAndLog(" 6 = MIFARE Mini");
+ PrintAndLog(" u : 4 or 7 byte UID");
+ PrintAndLog(" x : (Optional) performs the 'reader attack', nr/ar attack against a legitimate reader");
+ PrintAndLog("\n sample : hf 14a sim t 1 u 1122344");
+ PrintAndLog(" : hf 14a sim t 1 u 1122344 x\n");
+ return 0;
+}
+
// ## simulate iso14443a tag
// ## greg - added ability to specify tag UID
int CmdHF14ASim(const char *Cmd)
{
- UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
-
- // Retrieve the tag type
- uint8_t tagtype = param_get8ex(Cmd,0,0,10);
+ bool errors = FALSE;
+ uint8_t flags = 0;
+ uint8_t tagtype = 1;
+ uint64_t uid = 0;
+ uint8_t cmdp = 0;
- // When no argument was given, just print help message
- if (tagtype == 0) {
- PrintAndLog("");
- PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
- PrintAndLog("");
- PrintAndLog(" syntax: hf 14a sim <type> <uid>");
- PrintAndLog(" types: 1 = MIFARE Classic");
- PrintAndLog(" 2 = MIFARE Ultralight");
- PrintAndLog(" 3 = MIFARE Desfire");
- PrintAndLog(" 4 = ISO/IEC 14443-4");
- PrintAndLog(" 5 = MIFARE Tnp3xxx");
- PrintAndLog("");
- return 1;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_hf_14a_sim();
+ case 't':
+ case 'T':
+ // Retrieve the tag type
+ tagtype = param_get8ex(Cmd, cmdp+1, 0, 10);
+ if (tagtype == 0)
+ errors = true;
+ cmdp += 2;
+ break;
+ case 'u':
+ case 'U':
+ // Retrieve the full 4 or 7 byte long uid
+ uid = param_get64ex(Cmd, cmdp+1, 0, 16);
+ if (uid == 0 )
+ errors = TRUE;
+
+ if (uid > 0xffffffff) {
+ PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",uid);
+ flags |= FLAG_7B_UID_IN_DATA;
+ } else {
+ PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",uid);
+ flags |= FLAG_4B_UID_IN_DATA;
+ }
+ cmdp += 2;
+ break;
+ case 'x':
+ case 'X':
+ flags |= FLAG_NR_AR_ATTACK;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
}
+
+ //Validations
+ if (errors) return usage_hf_14a_sim();
+
+ PrintAndLog("Press pm3-button to abort simulation");
- // Store the tag type
- c.arg[0] = tagtype;
-
- // Retrieve the full 4 or 7 byte long uid
- uint64_t long_uid = param_get64ex(Cmd,1,0,16);
-
- // Are we handling the (optional) second part uid?
- if (long_uid > 0xffffffff) {
- PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
- // Store the second part
- c.arg[2] = (long_uid & 0xffffffff);
- long_uid >>= 32;
- // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
- c.arg[1] = (long_uid & 0xffffff);
- } else {
- PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
- // Only store the first part
- c.arg[1] = long_uid & 0xffffffff;
+ UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{ tagtype, flags, 0 }};
+ num_to_bytes(uid, 7, c.d.asBytes);
+ SendCommand(&c);
+
+ while(!ukbhit()){
+ UsbCommand resp;
+ WaitForResponseTimeout(CMD_ACK,&resp,1500);
+ PrintAndLog("Got %04X %02X", resp.arg[0], resp.arg[0]);
+ if ( (resp.arg[0] & 0xffff) == CMD_SIMULATE_MIFARE_CARD ){
+ uint8_t data[40];
+ uint8_t key[6];
+ int len = (resp.arg[1] > sizeof(data)) ? sizeof(data) : resp.arg[1];
+ memcpy(data, resp.d.asBytes, len);
+ tryMfk32(uid, data, key);
+ //tryMfk64(uid, data, key);
+ PrintAndLog("--");
+ memset(data,0x00, 40);
+ }
}
-/*
- // At lease save the mandatory first part of the UID
- c.arg[0] = long_uid & 0xffffffff;
+ return 0;
+}
- if (c.arg[1] == 0) {
- PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
+int tryMfk32(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
+
+ struct Crypto1State *s,*t;
+ uint64_t key; // recovered key
+ uint32_t uid; // serial number
+ uint32_t nt; // tag challenge
+ uint32_t nr0_enc; // first encrypted reader challenge
+ uint32_t ar0_enc; // first encrypted reader response
+ uint32_t nr1_enc; // second encrypted reader challenge
+ uint32_t ar1_enc; // second encrypted reader response
+ bool isSuccess = FALSE;
+ int counter = 0;
+
+ uid = myuid;//(uint32_t)bytes_to_num(data + 0, 4);
+ nt = *(uint32_t*)(data+8);
+ nr0_enc = *(uint32_t*)(data+12);
+ ar0_enc = *(uint32_t*)(data+16);
+ nr1_enc = *(uint32_t*)(data+32);
+ ar1_enc = *(uint32_t*)(data+36);
+
+ // PrintAndLog("Recovering key for:");
+ // PrintAndLog(" uid: %08x",uid);
+ // PrintAndLog(" nt: %08x",nt);
+ // PrintAndLog(" {nr_0}: %08x",nr0_enc);
+ // PrintAndLog(" {ar_0}: %08x",ar0_enc);
+ // PrintAndLog(" {nr_1}: %08x",nr1_enc);
+ // PrintAndLog(" {ar_1}: %08x",ar1_enc);
+
+ s = lfsr_recovery32(ar0_enc ^ prng_successor(nt, 64), 0);
+
+ for(t = s; t->odd | t->even; ++t) {
+ lfsr_rollback_word(t, 0, 0);
+ lfsr_rollback_word(t, nr0_enc, 1);
+ lfsr_rollback_word(t, uid ^ nt, 0);
+ crypto1_get_lfsr(t, &key);
+ crypto1_word(t, uid ^ nt, 0);
+ crypto1_word(t, nr1_enc, 1);
+ if (ar1_enc == (crypto1_word(t, 0, 0) ^ prng_successor(nt, 64))) {
+ PrintAndLog("Found Key: [%012"llx"]",key);
+ isSuccess = TRUE;
+ ++counter;
+ if (counter==10)
+ break;
+ }
}
+ free(s);
+ return isSuccess;
+}
+
+int tryMfk64(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
+
+ struct Crypto1State *revstate;
+ uint64_t key; // recovered key
+ uint32_t uid; // serial number
+ uint32_t nt; // tag challenge
+ uint32_t nr_enc; // encrypted reader challenge
+ uint32_t ar_enc; // encrypted reader response
+ uint32_t at_enc; // encrypted tag response
+ uint32_t ks2; // keystream used to encrypt reader response
+ uint32_t ks3; // keystream used to encrypt tag response
+
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
- switch (c.arg[0]) {
- case 1: {
- PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
- UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
- } break;
- case 2: {
- PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
- } break;
- default: {
- PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
- PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
- PrintAndLog(" type1: 4 ",c.arg[0]);
-
- return 1;
- } break;
- }
-*/
-/*
- unsigned int hi = 0, lo = 0;
- int n = 0, i = 0;
- while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
- hi= (hi << 4) | (lo >> 28);
- lo= (lo << 4) | (n & 0xf);
- }
-*/
-// UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
-// PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
- SendCommand(&c);
- return 0;
+
+
+ uid = myuid;//(uint32_t)bytes_to_num(data + 0, 4);
+ nt = *(uint32_t*)(data+8);
+ nr_enc = *(uint32_t*)(data+12);
+ ar_enc = *(uint32_t*)(data+16);
+
+ crypto1_word(pcs, nr_enc , 1);
+ at_enc = prng_successor(nt, 96) ^ crypto1_word(pcs, 0, 0);
+
+ // printf("Recovering key for:\n");
+ // printf(" uid: %08x\n",uid);
+ // printf(" nt: %08x\n",nt);
+ // printf(" {nr}: %08x\n",nr_enc);
+ // printf(" {ar}: %08x\n",ar_enc);
+ // printf(" {at}: %08x\n",at_enc);
+
+ // Extract the keystream from the messages
+ ks2 = ar_enc ^ prng_successor(nt, 64);
+ ks3 = at_enc ^ prng_successor(nt, 96);
+
+ revstate = lfsr_recovery64(ks2, ks3);
+ lfsr_rollback_word(revstate, 0, 0);
+ lfsr_rollback_word(revstate, 0, 0);
+ lfsr_rollback_word(revstate, nr_enc, 1);
+ lfsr_rollback_word(revstate, uid ^ nt, 0);
+ crypto1_get_lfsr(revstate, &key);
+ PrintAndLog("Found Key: [%012"llx"]",key);
+ crypto1_destroy(revstate);
+ crypto1_destroy(pcs);
+ return 0;
}
-int CmdHF14ASnoop(const char *Cmd) {
+int CmdHF14ASniff(const char *Cmd) {
int param = 0;
uint8_t ctmp = param_getchar(Cmd, 0) ;
if (ctmp == 'h' || ctmp == 'H') {
PrintAndLog("It get data from the field and saves it into command buffer.");
- PrintAndLog("Buffer accessible from command hf list 14a.");
- PrintAndLog("Usage: hf 14a snoop [c][r]");
+ PrintAndLog("Buffer accessible from command 'hf list 14a'");
+ PrintAndLog("Usage: hf 14a sniff [c][r]");
PrintAndLog("c - triggered by first data from card");
PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
- PrintAndLog("sample: hf 14a snoop c r");
+ PrintAndLog("sample: hf 14a sniff c r");
return 0;
}
sscanf(buf,"%x",&temp);
data[datalen]=(uint8_t)(temp & 0xff);
*buf=0;
- if (++datalen>sizeof(data)){
+ if (++datalen >= sizeof(data)){
if (crc)
PrintAndLog("Buffer is full, we can't add CRC to your data");
break;
if (topazmode) {
ComputeCrc14443(CRC_14443_B, data, datalen, &first, &second);
} else {
- ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
+ ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
}
data[datalen++] = first;
data[datalen++] = second;
{"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
{"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
{"sim", CmdHF14ASim, 0, "<UID> -- Simulate ISO 14443a tag"},
- {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
+ {"sniff", CmdHF14ASniff, 0, "sniff ISO 14443 Type A traffic"},
{"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
{NULL, NULL, 0, NULL}
};
WaitForResponseTimeout(CMD_ACK,NULL,100);
// parse
- CmdsParse(CommandTable, Cmd);
- return 0;
+ CmdsParse(CommandTable, Cmd);
+ return 0;
}
int CmdHelp(const char *Cmd)
projects / proxmark3-svn / commitdiff