ADD file via upload

AES.py

@@ -0,0 +1,54 @@
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import pad, unpad
+from Crypto.Random import get_random_bytes
+import binascii
+
+
+def aes_encrypt(plaintext, key):
+    try:
+        if len(key) != 16:
+            raise ValueError("密钥必须为16字节")
+        plaintext_bytes = plaintext.encode('utf-8')
+        key_bytes = key.encode('utf-8')
+        padded_plaintext = pad(plaintext_bytes, AES.block_size)
+        iv = get_random_bytes(AES.block_size)
+        cipher = AES.new(key_bytes, AES.MODE_CBC, iv)
+        ciphertext = cipher.encrypt(padded_plaintext)
+        return iv, ciphertext
+    except Exception as e:
+        return None, str(e)
+
+
+def aes_decrypt(iv, ciphertext, key):
+    try:
+        if len(key) != 16:
+            raise ValueError("密钥必须为16字节")
+        key_bytes = key.encode('utf-8')
+        cipher = AES.new(key_bytes, AES.MODE_CBC, iv)
+        padded_plaintext = cipher.decrypt(ciphertext)
+        plaintext_bytes = unpad(padded_plaintext, AES.block_size)
+        return plaintext_bytes.decode('utf-8')
+    except Exception as e:
+        return str(e)
+
+
+def main():
+    plaintext = "陈跨国方式点卡"
+    key = "1234567890abcdef"
+
+    print(f"明文: {plaintext}")
+    print(f"密钥: {key}")
+
+    iv, ciphertext = aes_encrypt(plaintext, key)
+    if ciphertext:
+        print(f"IV (hex): {binascii.hexlify(iv).decode()}")
+        print(f"密文 (hex): {binascii.hexlify(ciphertext).decode()}")
+
+        decrypted_text = aes_decrypt(iv, ciphertext, key)
+        print(f"解密后的明文: {decrypted_text}")
+    else:
+        print(f"加密失败: {ciphertext}")
+
+
+if __name__ == "__main__":
+    main()