refactor: 将文件从子目录提升到仓库根目录

所有文件从 hello_js_reverse_skill/ 子目录移至仓库根目录，
使项目结构更清晰，便于作为 Skill 直接引用。

Made-with: Cursor

templates/node-request/utils/encrypt.js

@@ -0,0 +1,71 @@
+/**
+ * 加密参数生成模块
+ * 根据逆向分析还原的加密逻辑，生成请求所需的加密参数
+ */
+
+const crypto = require('crypto');
+
+function md5(str) {
+    return crypto.createHash('md5').update(str).digest('hex');
+}
+
+function sha256(str) {
+    return crypto.createHash('sha256').update(str).digest('hex');
+}
+
+function hmacSha256(message, secret) {
+    return crypto.createHmac('sha256', secret).update(message).digest('hex');
+}
+
+function aesEncrypt(plaintext, key, iv, mode = 'cbc') {
+    const algorithm = `aes-${key.length * 8}-${mode}`;
+    const cipher = crypto.createCipheriv(algorithm, key, mode === 'ecb' ? null : iv);
+    cipher.setAutoPadding(true);
+    let encrypted = cipher.update(plaintext, 'utf8', 'base64');
+    encrypted += cipher.final('base64');
+    return encrypted;
+}
+
+function aesDecrypt(ciphertext, key, iv, mode = 'cbc') {
+    const algorithm = `aes-${key.length * 8}-${mode}`;
+    const decipher = crypto.createDecipheriv(algorithm, key, mode === 'ecb' ? null : iv);
+    decipher.setAutoPadding(true);
+    let decrypted = decipher.update(ciphertext, 'base64', 'utf8');
+    decrypted += decipher.final('utf8');
+    return decrypted;
+}
+
+/**
+ * 生成请求签名
+ * TODO: 根据实际逆向分析修改此函数
+ * @param {Object} params - 请求参数
+ * @returns {string} 签名值
+ */
+function generateSign(params) {
+    const { page, timestamp } = params;
+    // 示例：sign = md5(page + "|" + timestamp + "|" + SECRET)
+    const SECRET = 'your_secret_here';
+    return md5(`${page}|${timestamp}|${SECRET}`);
+}
+
+/**
+ * 生成加密参数 m
+ * TODO: 根据实际逆向分析修改此函数
+ * @param {number} page - 页码
+ * @returns {string} 加密后的参数
+ */
+function generateM(page) {
+    const timestamp = Math.floor(Date.now() / 1000);
+    const sign = generateSign({ page, timestamp });
+    return `${sign}|${timestamp}`;
+}
+
+module.exports = {
+    md5,
+    sha256,
+    hmacSha256,
+    aesEncrypt,
+    aesDecrypt,
+    generateSign,
+    generateM,
+};