Author: cy
Date: Thu Jul 27 06:26:15 2017
New Revision: 321605
URL: https://svnweb.freebsd.org/changeset/base/321605
Log:
As in r315225, discard 3072 bytes of RC4 bytestream instead of 1024.
PR: 217920
Submitted by: codar...@hackers.mu
Reviewed by: emaste, cem
Approved by: so (implicit, in r315225)
MFC after: 1 week
Differential Revision: D11747
Patterned after: r315225
Modified:
head/contrib/ipfilter/arc4random.c
Modified: head/contrib/ipfilter/arc4random.c
==============================================================================
--- head/contrib/ipfilter/arc4random.c Thu Jul 27 05:31:48 2017
(r321604)
+++ head/contrib/ipfilter/arc4random.c Thu Jul 27 06:26:15 2017
(r321605)
@@ -109,9 +109,9 @@ arc4_randomstir (void)
/*
* Throw away the first N words of output, as suggested in the
* paper "Weaknesses in the Key Scheduling Algorithm of RC4"
- * by Fluher, Mantin, and Shamir. (N = 256 in our case.)
+ * by Fluher, Mantin, and Shamir. (N = 768 in our case.)
*/
- for (n = 0; n < 256*4; n++)
+ for (n = 0; n < 768*4; n++)
arc4_randbyte();
MUTEX_EXIT(&arc4_mtx);
}
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