X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/405944a0ac29df7890eb7b15faad23575a621a46..03d73c0b8d3fdacfda8d5fbc696c28f39655db62:/armsrc/mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 5dfeeab0..4100ef54 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -8,7 +8,6 @@
 //-----------------------------------------------------------------------------
 // Work with mifare cards.
 //-----------------------------------------------------------------------------
-
 #include "mifareutil.h"
 
 int MF_DBGLEVEL = MF_DBG_ALL;
@@ -122,7 +121,10 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 
 	// "random" reader nonce:
 	//byte_t nr[4] = {0x55, 0x41, 0x49, 0x92};
-	byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};
+	fast_prand();
+	byte_t nr[4];
+	num_to_bytes(prand(), 4, nr);
+	//byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};
 	
 	uint32_t nt, ntpp; // Supplied tag nonce
 	
@@ -277,7 +279,7 @@ int mifare_ultra_auth(uint8_t *keybytes){
 	memcpy(enc_random_b,resp+1,8);
 
 	// decrypt nonce.
-	tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
+	tdes_2key_dec((void*)random_b, (void*)enc_random_b, sizeof(random_b), (const void*)key, IV );
 	rol(random_b,8);
 	memcpy(rnd_ab  ,random_a,8);
 	memcpy(rnd_ab+8,random_b,8);