From 12801adec23e5bef79871575a340e918dbd61f42 Mon Sep 17 00:00:00 2001
From: Sun Yimin <emmansun@users.noreply.github.com>
Date: Sat, 20 Mar 2021 21:53:07 +0800
Subject: [PATCH] =?UTF-8?q?Updated=20SM4=E6=80=A7=E8=83=BD=E4=BC=98?=
 =?UTF-8?q?=E5=8C=96=20(markdown)?=
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---
 SM4性能优化.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/SM4性能优化.md b/SM4性能优化.md
index a925c48..5f52051 100644
--- a/SM4性能优化.md
+++ b/SM4性能优化.md
@@ -85,5 +85,8 @@ asm部分改造自aes的实现，优化结果很惊人！
     BenchmarkSM4GCMSeal8K-6      	   35432	     33863 ns/op	 241.92 MB/s	       0 B/op	       0 allocs/op
     BenchmarkSM4GCMOpen8K-6      	   35214	     33940 ns/op	 241.36 MB/s	       0 B/op	       0 allocs/op
 
+# CCM及CMAC
+CMAC使用CBC模式加密来生成MAC，基于CBC模式的串行化特定以及block加密的性能，其性能必定没有GCM模式好。
+
 # CFB和OFB
 Golang没提供这两种模式的优化接口，可能这两种模式不怎么推荐使用了，况且也就CFB解密可以并行。
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