Increase initially dropped bytes from 512 to 768 (768 is also

suggested in the Ilya Mironov's article). 768 taken from another
research where it treats as default for RC4-drop(768):
http://www.users.zetnet.co.uk/hopwood/crypto/scan/cs.html#RC4-drop

Minor style tweak.

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/libc/gen/arc4random.c b/lib/libc/gen/arc4random.c
index 68d727d..2e6ce11 100644
--- a/lib/libc/gen/arc4random.c
+++ b/lib/libc/gen/arc4random.c
@@ -123,7 +123,7 @@ arc4_stir(void)
 	/* !done?  Ah, what the heck. We'll just take whatever was on the
 	 * stack... */
 	if (!done) {
-		gettimeofday(&rdat.tv, NULL);
+		(void)gettimeofday(&rdat.tv, NULL);
 		rdat.pid = getpid();
 	}
 
@@ -132,12 +132,12 @@ arc4_stir(void)
 	/*
 	 * Throw away the first N bytes of output, as suggested in the
 	 * paper "Weaknesses in the Key Scheduling Algorithm of RC4"
-	 * by Fluher, Mantin, and Shamir.  N=512 is based on
+	 * by Fluher, Mantin, and Shamir.  N=768 is based on
 	 * suggestions in the paper "(Not So) Random Shuffles of RC4"
 	 * by Ilya Mironov.
 	 */
 	if (rs_initialized != 1) {
-		for (n = 0; n < 512; n++)
+		for (n = 0; n < 768; n++)
 			(void)arc4_getbyte();
 		rs_initialized = 1;
 	}