X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/650cd714c4527d6c6d054d12e7202bf3587393d0..dfdbfa0702c77877a5b5b9bdf6dcef2d6b550cdf:/client/cmdhfmf.c?ds=sidebyside

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 99a91ced..36896c89 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -32,6 +32,7 @@ int usage_hf14_mf1ksim(void){
 	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("      m    (Optional) Show maths used for cracking reader. Useful for debugging.");
 	PrintAndLog("samples:");
 	PrintAndLog("           hf mf sim u 0a0a0a0a");
 	PrintAndLog("           hf mf sim u 11223344556677");
@@ -1364,7 +1365,7 @@ int CmdHF14AMfChk(const char *Cmd) {
 #define ATTACK_KEY_COUNT 8
 sector *k_sector = NULL;
 uint8_t k_sectorsCount = 16;
-void readerAttack(nonces_t data[], bool setEmulatorMem) {
+void readerAttack(nonces_t data[], bool setEmulatorMem, bool showMaths) {
 
 	// initialize storage for found keys
 	if (k_sector == NULL)
@@ -1413,7 +1414,7 @@ void readerAttack(nonces_t data[], bool setEmulatorMem) {
 			}
 #endif
 			//moebius attack			
-			if (tryMfk32_moebius(data[i+ATTACK_KEY_COUNT], &key)) {
+			if (tryMfk32_moebius(data[i+ATTACK_KEY_COUNT], &key, showMaths)) {
 				uint8_t sectorNum = data[i+ATTACK_KEY_COUNT].sector;
 				uint8_t keyType = data[i+ATTACK_KEY_COUNT].keytype;
 
@@ -1449,11 +1450,14 @@ int CmdHF14AMf1kSim(const char *Cmd) {
 	uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 	uint8_t exitAfterNReads = 0;
 	uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA);
-	int uidlen = 0;	
+	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 showMaths = false;
+
 	while(param_getchar(Cmd, cmdp) != 0x00) {
 		switch(param_getchar(Cmd, cmdp)) {
 		case 'e':
@@ -1469,6 +1473,11 @@ int CmdHF14AMf1kSim(const char *Cmd) {
 			flags |= FLAG_INTERACTIVE;
 			cmdp++;
 			break;
+		case 'm':
+		case 'M':
+			showMaths = true;
+			cmdp++;
+			break;
 		case 'n':
 		case 'N':
 			exitAfterNReads = param_get8(Cmd, cmdp+1);
@@ -1524,7 +1533,7 @@ int CmdHF14AMf1kSim(const char *Cmd) {
 			if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;
 
 			memcpy( data, resp.d.asBytes, sizeof(data) );			
-			readerAttack(data, setEmulatorMem);
+			readerAttack(data, setEmulatorMem, showMaths);
 		}
 		
 		if (k_sector != NULL) {