Module Name:    src
Committed By:   snj
Date:           Thu Jan 21 08:32:25 UTC 2010

Modified Files:
        src/sys/lib/libkern [netbsd-4-0]: arc4random.c

Log Message:
Pull up following revision(s) (requested by joerg in ticket #1374):
        sys/lib/libkern/arc4random.c: revision 1.21
Keep arc4_i and arc4_j synchronised after a rekeying. This prevents
accidentally ending up in a short ARC4 cycle.


To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.18.22.1 src/sys/lib/libkern/arc4random.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/lib/libkern/arc4random.c
diff -u src/sys/lib/libkern/arc4random.c:1.18 src/sys/lib/libkern/arc4random.c:1.18.22.1
--- src/sys/lib/libkern/arc4random.c:1.18	Sun Nov  5 14:13:56 2006
+++ src/sys/lib/libkern/arc4random.c	Thu Jan 21 08:32:24 2010
@@ -1,4 +1,4 @@
-/*	$NetBSD: arc4random.c,v 1.18 2006/11/05 14:13:56 christos Exp $	*/
+/*	$NetBSD: arc4random.c,v 1.18.22.1 2010/01/21 08:32:24 snj Exp $	*/
 
 /*-
  * Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -141,6 +141,7 @@
 		arc4_j = (arc4_j + arc4_sbox[n] + key[n]) % 256;
 		arc4_swap(&arc4_sbox[n], &arc4_sbox[arc4_j]);
 	}
+	arc4_i = arc4_j;
 
 	/* Reset for next reseed cycle. */
 	arc4_nextreseed = time_uptime + ARC4_RESEED_SECONDS;

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