diff --git a/SM4性能优化.md b/SM4性能优化.md
index cc0bfde..f337b13 100644
--- a/SM4性能优化.md
+++ b/SM4性能优化.md
@@ -76,7 +76,7 @@ Go语言的对称加密实现分离了加密模式和Block级别的加密，同
     BenchmarkSM4GCMOpen8K-6      	   19948	     60258 ns/op	 135.95 MB/s	       0 B/op	       0 allocs/op
 
 # GCM模式GHASH ASM优化
-
+asm部分改造自aes的实现，优化结果很惊人！
     BenchmarkSM4GCMSeal1K-6      	  273218	      4491 ns/op	 228.00 MB/s	       0 B/op	       0 allocs/op
     BenchmarkSM4GCMOpen1K-6      	  250770	      4516 ns/op	 226.73 MB/s	       0 B/op	       0 allocs/op
     BenchmarkSM4GCMSign1K-6      	 3321482	       359 ns/op	2853.54 MB/s	       0 B/op	       0 allocs/op