diff --git a/.gitmodules b/.gitmodules
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index 0000000..bbb7545
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "密码分析学/密码分析学"]
+	path = 密码分析学/密码分析学24Fall
+	url = https://github.com/KirisameVanilla/Cryptanalysis_of_cryptography.git
diff --git a/密码分析学/README.md b/密码分析学/README.md
new file mode 100644
index 0000000..e9a9fac
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+++ b/密码分析学/README.md
@@ -0,0 +1,9 @@
+## 课程评价
+
+若人少 ~少到不适合使用百分制~ , 则无脑选
+
+若对哈希算法的碰撞攻击感兴趣, 推荐选
+
+## 教师 (王高丽) 评价
+
+好
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