Author: cem
Date: Sat Oct 20 22:17:16 2018
New Revision: 339500
URL: https://svnweb.freebsd.org/changeset/base/339500
Log:
Embedded chacha: Remove some harmless dead stores in keystream mode
(From r338059.)
Sponsored by: Dell EMC Isilon
Modified:
head/sys/crypto/chacha20/chacha.c
Modified: head/sys/crypto/chacha20/chacha.c
==============================================================================
--- head/sys/crypto/chacha20/chacha.c Sat Oct 20 22:14:29 2018
(r339499)
+++ head/sys/crypto/chacha20/chacha.c Sat Oct 20 22:17:16 2018
(r339500)
@@ -120,8 +120,10 @@ chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u
for (;;) {
if (bytes < 64) {
+#ifndef KEYSTREAM_ONLY
for (i = 0;i < bytes;++i) tmp[i] = m[i];
m = tmp;
+#endif
ctarget = c;
c = tmp;
}
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