From 0b3f2396611e4d02f7eb607618a8cfd94d412f20 Mon Sep 17 00:00:00 2001
From: huangxt <kintai@foxmail.com>
Date: Sat, 7 Mar 2026 20:56:52 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E5=AE=89=E5=85=A8=E7=AD=96?=
 =?UTF-8?q?=E7=95=A5=E7=89=88=E6=9C=AC=E5=8F=B7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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- SECURITY.md 和 SECURITY.zh-CN.md 版本支持改为 0.1.x
- 与当前 Cargo.toml 版本 0.1.0 保持一致
---
 SECURITY.md       | 4 ++--
 SECURITY.zh-CN.md | 4 ++--
 src/sm4/modes.rs  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/SECURITY.md b/SECURITY.md
index 7d7ea46..5983396 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,8 +4,8 @@
 
 | Version | Supported |
 |---------|-----------|
-| 0.3.x   | Yes       |
-| < 0.3   | No        |
+| 0.1.x   | Yes       |
+| < 0.1   | No        |
 
 ## Reporting a Vulnerability
 
diff --git a/SECURITY.zh-CN.md b/SECURITY.zh-CN.md
index 8a91e6e..22df943 100644
--- a/SECURITY.zh-CN.md
+++ b/SECURITY.zh-CN.md
@@ -4,8 +4,8 @@
 
 | 版本 | 是否支持 |
 |------|----------|
-| 0.3.x | 是       |
-| < 0.3 | 否       |
+| 0.1.x | 是       |
+| < 0.1 | 否       |
 
 ## 报告漏洞
 
diff --git a/src/sm4/modes.rs b/src/sm4/modes.rs
index 9290a80..806b5b1 100644
--- a/src/sm4/modes.rs
+++ b/src/sm4/modes.rs
@@ -411,7 +411,7 @@ fn ccm_cbc_mac(
         let aad_len = aad.len();
         // Reason: CCM AAD 前缀 2 字节长度 + AAD 数据，补零至 16 字节对齐
         let prefix_len = 2 + aad_len;
-        let padded_len = (prefix_len + 15) / 16 * 16;
+        let padded_len = prefix_len.div_ceil(16) * 16;
         let mut aad_buf = [0u8; 512]; // 足够大的栈缓冲区（支持 AAD ≤ 510 字节）
 
         // Reason: 超过 510 字节需要 4 字节长度编码（RFC 3610 §2.2），