From 0c12504a5a9679919e0045535822bb6c3823a15b Mon Sep 17 00:00:00 2001
From: "martin.holst@gmail.com"
<martin.holst@gmail.com@ef4ab9da-24cd-11de-8aaa-f3a34680c41f>
Date: Thu, 27 Feb 2014 18:10:12 +0000
Subject: [PATCH] Patch submitted by 'FireFart', for some issues with 'hf mf
chk'. See http://www.proxmark.org/forum/viewtopic.php?id=1888 for more info
---
client/cmdhfmf.c | 46 +++++++++++++++++++++++++---------------------
1 file changed, 25 insertions(+), 21 deletions(-)
diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 8d78b0e6..cc9b4c76 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -947,19 +947,28 @@ int CmdHF14AMfChk(const char *Cmd)
keyBlock = calloc(stKeyBlock, 6);
if (keyBlock == NULL) return 1;
- num_to_bytes(0xffffffffffff, 6, (uint8_t*)(keyBlock + 0 * 6)); // Default key (first key used by program if no user defined key)
- num_to_bytes(0x000000000000, 6, (uint8_t*)(keyBlock + 1 * 6)); // Blank key
- num_to_bytes(0xa0a1a2a3a4a5, 6, (uint8_t*)(keyBlock + 2 * 6)); // NFCForum MAD key
- num_to_bytes(0xb0b1b2b3b4b5, 6, (uint8_t*)(keyBlock + 3 * 6));
- num_to_bytes(0xaabbccddeeff, 6, (uint8_t*)(keyBlock + 4 * 6));
- num_to_bytes(0x4d3a99c351dd, 6, (uint8_t*)(keyBlock + 5 * 6));
- num_to_bytes(0x1a982c7e459a, 6, (uint8_t*)(keyBlock + 6 * 6));
- num_to_bytes(0xd3f7d3f7d3f7, 6, (uint8_t*)(keyBlock + 7 * 6));
- num_to_bytes(0x714c5c886e97, 6, (uint8_t*)(keyBlock + 8 * 6));
- num_to_bytes(0x587ee5f9350f, 6, (uint8_t*)(keyBlock + 9 * 6));
- num_to_bytes(0xa0478cc39091, 6, (uint8_t*)(keyBlock + 10 * 6));
- num_to_bytes(0x533cb6c723f6, 6, (uint8_t*)(keyBlock + 11 * 6));
- num_to_bytes(0x8fd0a4f256e9, 6, (uint8_t*)(keyBlock + 12 * 6));
+ uint64_t defaultKeys[] =
+ {
+ 0xffffffffffff, // Default key (first key used by program if no user defined key)
+ 0x000000000000, // Blank key
+ 0xa0a1a2a3a4a5, // NFCForum MAD key
+ 0xb0b1b2b3b4b5,
+ 0xaabbccddeeff,
+ 0x4d3a99c351dd,
+ 0x1a982c7e459a,
+ 0xd3f7d3f7d3f7,
+ 0x714c5c886e97,
+ 0x587ee5f9350f,
+ 0xa0478cc39091,
+ 0x533cb6c723f6,
+ 0x8fd0a4f256e9
+ };
+ int defaultKeysSize = (sizeof(defaultKeys) / 7) - 1;
+
+ for (int defaultKeyCounter = 0; defaultKeyCounter < defaultKeysSize; defaultKeyCounter++)
+ {
+ num_to_bytes(defaultKeys[defaultKeyCounter], 6, (uint8_t*)(keyBlock + defaultKeyCounter * 6));
+ }
if (strlen(Cmd)<3) {
PrintAndLog("Usage: hf mf chk <block number>/<*card memory> <key type (A/B/?)> [t] [<key (12 hex symbols)>] [<dic (*.dic)>]");
@@ -1029,13 +1038,7 @@ int CmdHF14AMfChk(const char *Cmd)
}
if ( (f = fopen( filename , "r")) ) {
- while( !feof(f) ){
- memset(buf, 0, sizeof(buf));
- if (fgets(buf, sizeof(buf), f) == NULL) {
- PrintAndLog("File reading error.");
- return 2;
- }
-
+ while( fgets(buf, sizeof(buf), f) ){
if (strlen(buf) < 12 || buf[11] == '\n')
continue;
@@ -1063,6 +1066,7 @@ int CmdHF14AMfChk(const char *Cmd)
num_to_bytes(strtoll(buf, NULL, 16), 6, keyBlock + 6*keycnt);
PrintAndLog("chk custom key[%d] %012"llx, keycnt, bytes_to_num(keyBlock + 6*keycnt, 6));
keycnt++;
+ memset(buf, 0, sizeof(buf));
}
} else {
PrintAndLog("File: %s: not found or locked.", filename);
@@ -1075,7 +1079,7 @@ int CmdHF14AMfChk(const char *Cmd)
if (keycnt == 0) {
PrintAndLog("No key specified,try default keys");
- for (;keycnt <=12; keycnt++)
+ for (;keycnt < defaultKeysSize; keycnt++)
PrintAndLog("chk default key[%d] %02x%02x%02x%02x%02x%02x", keycnt,
(keyBlock + 6*keycnt)[0],(keyBlock + 6*keycnt)[1], (keyBlock + 6*keycnt)[2],
(keyBlock + 6*keycnt)[3], (keyBlock + 6*keycnt)[4], (keyBlock + 6*keycnt)[5], 6);
--
2.39.5