Initialize encryption and JavaScript reverse-engineering study repository

Document the project structure and setup while excluding local dependencies and IDE settings.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

对称加密-AES-2026-08-24/2. python实现aes加解密.py

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+import base64
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import pad, unpad
+"""
+des加解密，key长度有要求
+    key长度必须8字节(64bit)
+
+aes加解密，key长度有要求
+    key长度必须16字节(128bit), 24字节(192bit), 32字节(256bit)
+"""
+
+def aes_encrypt(plain_text):
+    cipher = AES.new(des_key, AES.MODE_CBC, iv)
+    encrypted = cipher.encrypt(pad(plain_text.encode("utf-8"), AES.block_size))
+    return base64.b64encode(encrypted)
+
+
+def aes_decrypt(cipher_text):
+    cipher = AES.new(des_key, AES.MODE_CBC, iv)
+    decrypt_byte_data = base64.b64decode(cipher_text)
+    decrypted = unpad(cipher.decrypt(decrypt_byte_data), AES.block_size)
+    return decrypted.decode("utf-8")
+
+
+source_data = "你好，世界！"
+des_key = "1234567890abcdef".encode("utf-8")
+iv = "abcdef1234567890".encode("utf-8")
+if __name__ == "__main__":
+    enc_data = aes_encrypt(source_data)
+    print(enc_data)
+    print(aes_decrypt(aes_encrypt(source_data)))