From f47d8e7ea13e3dfdc8dfbc74239960615ec95492 Mon Sep 17 00:00:00 2001
From: Sun Yimin <emmansun@users.noreply.github.com>
Date: Sat, 22 Jul 2023 08:02:08 +0800
Subject: [PATCH] =?UTF-8?q?Updated=20SM9=E5=AE=9E=E7=8E=B0=E5=8F=8A?=
 =?UTF-8?q?=E4=BC=98=E5=8C=96=20(markdown)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 SM9实现及优化.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/SM9实现及优化.md b/SM9实现及优化.md
index 42c871d..4f59594 100644
--- a/SM9实现及优化.md
+++ b/SM9实现及优化.md
@@ -73,6 +73,9 @@ cpu: Intel(R) Core(TM) i5-9500 CPU @ 3.00GHz
 BenchmarkGfP2MulU-6   	12727611	        92.70 ns/op	       0 B/op	       0 allocs/op
 BenchmarkGfP2SquareU-6   	17728008	        66.35 ns/op	       0 B/op	       0 allocs/op
 ```
+## 使用投影坐标下的完全加法、Double
+原来的方法不是constant-time运行的，安全性不高。
+
 
 ## 下一步
 SM9算法好像比较冷门、应用也没有SM2广泛，因为[128位安全性挑战](https://moderncrypto.org/mail-archive/curves/2016/000740.html)？还是因为实现复杂度和性能？