加密说明

加密方式

• 算法：AES/ECB/PKCS5Padding
• 密钥长度：128位（16字节）
• 编码方式：Base64

加密流程

1. 将请求参数组装为 JSON 字符串
2. 使用 AES 算法加密 JSON 字符串
3. 将加密结果进行 Base64 编码
4. 将编码后的字符串作为 data 字段值

解密流程

1. 对 data 字段进行 Base64 解码
2. 使用 AES 算法解密
3. 得到原始 JSON 字符串

Java 示例

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;

public class AESUtil {
    public static String encrypt(String content, String aesKey) throws Exception {
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        SecretKeySpec keySpec = new SecretKeySpec(aesKey.getBytes("UTF-8"), "AES");
        cipher.init(Cipher.ENCRYPT_MODE, keySpec);
        byte[] encrypted = cipher.doFinal(content.getBytes("UTF-8"));
        return Base64.getEncoder().encodeToString(encrypted);
    }

    public static String decrypt(String encryptedContent, String aesKey) throws Exception {
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        SecretKeySpec keySpec = new SecretKeySpec(aesKey.getBytes("UTF-8"), "AES");
        cipher.init(Cipher.DECRYPT_MODE, keySpec);
        byte[] decoded = Base64.getDecoder().decode(encryptedContent);
        byte[] decrypted = cipher.doFinal(decoded);
        return new String(decrypted, "UTF-8");
    }
}

Python 示例

from Crypto.Cipher import AES
from Crypto.Util.Padding import pad, unpad
import base64

def encrypt(content, aes_key):
    cipher = AES.new(aes_key.encode('utf-8'), AES.MODE_ECB)
    padded = pad(content.encode('utf-8'), AES.block_size)
    encrypted = cipher.encrypt(padded)
    return base64.b64encode(encrypted).decode('utf-8')

def decrypt(encrypted_content, aes_key):
    cipher = AES.new(aes_key.encode('utf-8'), AES.MODE_ECB)
    decoded = base64.b64decode(encrypted_content)
    decrypted = cipher.decrypt(decoded)
    unpadded = unpad(decrypted, AES.block_size)
    return unpadded.decode('utf-8')

PHP 示例

<?php
class AESUtil {
    public static function encrypt($content, $aesKey) {
        $encrypted = openssl_encrypt($content, 'AES-128-ECB', $aesKey, OPENSSL_RAW_DATA);
        return base64_encode($encrypted);
    }

    public static function decrypt($encryptedContent, $aesKey) {
        $decoded = base64_decode($encryptedContent);
        return openssl_decrypt($decoded, 'AES-128-ECB', $aesKey, OPENSSL_RAW_DATA);
    }
}