From: iceman1001 <iceman@iuse.se>
Date: Fri, 23 Sep 2016 19:29:34 +0000 (+0200)
Subject: ADD;  added some more descriptions of what the legic prng imp does.
X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/93b7aa8f883e27c286bb1becc51783c58aa3b78b

ADD;  added some more descriptions of what the legic prng imp does.
---

diff --git a/common/legic_prng.c b/common/legic_prng.c
index 16e55331..df711aa1 100644
--- a/common/legic_prng.c
+++ b/common/legic_prng.c
@@ -7,9 +7,11 @@
 //-----------------------------------------------------------------------------
 
 #include "legic_prng.h"
-// a is 7bit
-// b is 
-// c is a counter
+// the prng is a muxed value from two lsfr a, b
+// a is 7bit lsfr
+// b is 8bit lsfr
+// c keeps track on which step the prng is.
+// legic_prng_get_bit() = gets a bit muxed from a and b. 
 struct lfsr {
 	uint8_t  a;
 	uint8_t  b;