From 689b547c3a4fa6b0557a3507ef4906fcdffdc852 Mon Sep 17 00:00:00 2001
From: ww-rm <ww-rm@qq.com>
Date: Sun, 31 Mar 2024 19:24:26 +0800
Subject: [PATCH] fix SM3 bug

---
 gmalg/sm3.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gmalg/sm3.py b/gmalg/sm3.py
index bc22f6e..7707526 100644
--- a/gmalg/sm3.py
+++ b/gmalg/sm3.py
@@ -138,7 +138,7 @@ def update(self, data: bytes) -> None:
             B.clear()
 
             pos = begin
-            while pos + 64 < d_len:
+            while pos + 63 < d_len:
                 _expand(data[pos:pos+64], W1, W2)
                 _compress(W1, W2, V)
                 pos += 64