CHG: the "HF MFU" authentication changes.

[proxmark3-svn] / client / mifarehost.c

diff --git a/client/mifarehost.c b/client/mifarehost.c
index 6716f7eb6077f0488a5a4274fed4954c52e804b6..d754b06b4a1a01dd589c6523bc354fdd0c99566d 100644 (file)
--- a/client/mifarehost.c
+++ b/client/mifarehost.c
@@ -15,6 +15,8 @@
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r
 \r
+#define llx PRIx64\r
+\r
 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r
        // didn't work: (the result is truncated to 32 bits)\r
@@ -312,16 +314,17 @@ static uint8_t traceCurKey = 0;
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r
 \r
-struct Crypto1State *revstate;\r
-uint64_t lfsr;\r
-uint32_t ks2;\r
-uint32_t ks3;\r
+struct Crypto1State *revstate = NULL;\r
+\r
+uint64_t key = 0;\r
+uint32_t ks2 = 0;\r
+uint32_t ks3 = 0;\r
 \r
-uint32_t uid;     // serial number\r
-uint32_t nt;      // tag challenge\r
-uint32_t nr_enc;  // encrypted reader challenge\r
-uint32_t ar_enc;  // encrypted reader response\r
-uint32_t at_enc;  // encrypted tag response\r
+uint32_t uid = 0;     // serial number\r
+uint32_t nt =0;      // tag challenge\r
+uint32_t nr_enc =0;  // encrypted reader challenge\r
+uint32_t ar_enc =0;  // encrypted reader response\r
+uint32_t at_enc =0;  // encrypted tag response\r
 \r
 int isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r
@@ -353,10 +356,7 @@ int loadTraceCard(uint8_t *tuid) {
        FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
 \r
        f = fopen(traceFileName, "r");\r
-       if (!f) {\r
-               fclose(f);\r
-               return 1;\r
-       }\r
+       if (!f) return 1;\r
        \r
        blockNum = 0;\r
                \r
@@ -364,10 +364,10 @@ int loadTraceCard(uint8_t *tuid) {
        \r
                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r
-      PrintAndLog("File reading error.");\r
+                       PrintAndLog("File reading error.");\r
                        fclose(f);\r
                        return 2;\r
-    }\r
+               }\r
 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r
@@ -393,10 +393,7 @@ int saveTraceCard(void) {
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        f = fopen(traceFileName, "w+");\r
-       if ( !f ) {\r
-               fclose(f);\r
-               return 1;\r
-       }\r
+       if ( !f ) return 1;\r
        \r
        for (int i = 0; i < 64; i++) {  // blocks\r
                for (int j = 0; j < 16; j++)  // bytes\r
@@ -583,17 +580,17 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        lfsr_rollback_word(revstate, nr_enc, 1);\r
                        lfsr_rollback_word(revstate, uid ^ nt, 0);\r
 \r
-                       crypto1_get_lfsr(revstate, &lfsr);\r
-                       printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));\r
-                       AddLogUint64(logHexFileName, "key> ", lfsr); \r
+                       crypto1_get_lfsr(revstate, &key);\r
+                       printf("Key: %012"llx"\n",key);\r
+                       AddLogUint64(logHexFileName, "key: ", key); \r
                        \r
                        int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
                        if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
                        \r
                        if (traceCurKey) {\r
-                               num_to_bytes(lfsr, 6, traceCard + blockShift + 10);\r
+                               num_to_bytes(key, 6, traceCard + blockShift + 10);\r
                        } else {\r
-                               num_to_bytes(lfsr, 6, traceCard + blockShift);\r
+                               num_to_bytes(key, 6, traceCard + blockShift);\r
                        }\r
                        if (wantSaveToEmlFile) saveTraceCard();\r
 \r
@@ -606,7 +603,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        \r
 //     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
 \r
-       /*      traceCrypto1 = crypto1_create(lfsr); // key in lfsr\r
+       /*      traceCrypto1 = crypto1_create(key); // key in lfsr\r
                crypto1_word(traceCrypto1, nt ^ uid, 0);\r
                crypto1_word(traceCrypto1, ar, 1);\r
                crypto1_word(traceCrypto1, 0, 0);\r