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技术挑战大赛腾讯极客挑战赛第一期:解开一道即将尘封十几年的封印

主办方:腾讯安全平台部
  • 开始

    1
    2020/06/23
    17:00
  • 报名

    2
    06/23~07/09
    17:0000:00
  • 比赛

    3
    06/23~07/09
    17:0000:00
  • 结束

    4
    2020/07/09
    00:00

赛事简介

腾讯极客挑战赛是由腾讯安全平台部发起的一项属于技术人的赛事,旨在为技术爱好者提供一个相互切磋、展示自我的舞台。这是一项长期的持续性赛事,每期比赛形式有所不同,包括但不限于解迷题、游戏闯关、排位赛等,涵盖研发、安全、算法等各个技术领域。

本期赛题

题目是一位来自腾讯安全平台部的技术人龙哥送给儿子的一岁生日礼物。

如同关卡一样层层嵌套,涵盖了从小学、中学、大学各个阶段知识内容,并包含了数学、算法、代码、安全这四个领域的知识。每解开一层,都可以收到龙哥准备的一份奖励,比如一个玩具车、一个游戏机、一次旅行、一台电脑......

参赛规则

参赛对象:

面向全社会开放,高等院校、科研单位、互联网企业等人员均可参赛。

注:本期为外部赛,腾讯员工不参与评奖和排名。

笞题规则:

  1. 解题后题目将显示通关公钥,将通关公钥在公众号中留言回复。(请不要直接贴解题思路和私钥,复制别人的公钥将视为无效)
  2. 优先按通过题目数量来排名,若解题数一致的情况下,留言回复时间越靠前则排名越靠前。
  3. 比赛起止时间为6月23日17:00至7月8日24:00。

注意事项:

  1. 建议每通过一题(共八题)都立刻留言回复,以保留最早的笞题时间。
  2. 一次提交多道题目时,只需要把当前解出的最后一题密钥贴出即可证明之前的题目都是解出来的。
  3. 请独立完成,不要在比赛结束前分享自己的解法。

你能试着解开这个封印吗?

python3运行环境,代码请保存为UTF8格式文件,若提示缺失AES库,则通过pip工具安装AES库,Linux:pip3 install pycrypto, Windows: pip install pycryptodome:

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from Crypto.Cipher import AES
import base64
import time
import gzip
from hashlib import md5
import sys
import io
sys.stdout = io.TextIOWrapper(sys.stdout.detach(), encoding='utf-8', line_buffering=True)

def Decrypt(key:str, text:str) -> str:
  if len(key) < 32: key += ' ' * (32 - len(key))
  elif len(key) > 32: key = key[0:32]
  cipher = AES.new(bytes(key,encoding='utf-8'), AES.MODE_CBC, bytes(AES.block_size))
  return str(gzip.decompress(bytes.strip(cipher.decrypt(base64.b64decode(text)))), encoding='utf-8')


def Pass(id, priv_key):
  prefix = str(id) + str(int(time.time()))
  pub_key = prefix + md5(bytes(prefix + priv_key, 'utf8')).hexdigest()
  print('恭喜通过第%d关,通关公钥:%s' % (id, pub_key))

key=input('1+1=')
exec(Decrypt(key,'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'))

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