通过DES算法解密和获取数据的功能

from Crypto.Cipher import DES from Crypto.Util.Padding import unpad import base64 import requests import json import urllib3 # 禁用 InsecureRequestWarning urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning) def des_decrypt(encrypted_data): key = b'IFROMC86' # DES 密钥为 8 字节 encrypted_data_bytes = base64.b64decode(encrypted_data) # 将 base64 编码的数据解码为字节 cipher = DES.new(key, DES.MODE_ECB) # 创建 DES 解密器，使用 ECB 模式 decrypted_data_bytes = cipher.decrypt(encrypted_data_bytes) # 解密数据 decrypted_data_bytes_unpadded = unpad(decrypted_data_bytes, DES.block_size) # 移除 PKCS7 填充 decrypted_data_str = decrypted_data_bytes_unpadded.decode('utf-8') # 将解密后的字节转换为字符串 return json.loads(decrypted_data_str) # 解析 JSON 数据并返回 def get_data_info(): headers = { "Accept": "application/json, text/plain, */*", "Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6", "Authorization": "Bearer undefined", "Cache-Control": "no-cache", "Connection": "keep-alive", "Content-Type": "application/json;charset=UTF-8", "Origin": "https://kd.nsfc.cn", "Pragma": "no-cache", "Referer": "https://kd.nsfc.cn/finalSearchList?s=%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0", "Sec-Fetch-Dest": "empty", "Sec-Fetch-Mode": "cors", "Sec-Fetch-Site": "same-origin", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 Edg/121.0.0.0", "sec-ch-ua": "\"Not A(Brand\";v=\"99\", \"Microsoft Edge\";v=\"121\", \"Chromium\";v=\"121\"", "sec-ch-ua-mobile": "?0", "sec-ch-ua-platform": "\"Windows\"" } url = "https://kd.nsfc.cn/api/baseQuery/completionQueryResultsData" data = { "code": "F02", "fuzzyKeyword": "", "complete": True, "isFuzzySearch": False, "conclusionYear": "2018", "dependUnit": "", "keywords": "", "pageNum": 2, "pageSize": 10, "personInCharge": "", "projectName": "", "projectType": "218", "subPType": "", "psPType": "", "ratifyNo": "", "ratifyYear": "", "order": "enddate", "ordering": "desc", "codeScreening": "", "dependUnitScreening": "", "keywordsScreening": "", "projectTypeNameScreening": "" } data = json.dumps(data, separators=(',', ':')) response = requests.post(url, headers=headers, data=data, verify=False) return response.text # 示例代码注释掉了加密数据部分。加密数据通常是一个很长的字符串，包含多种字符