02 2025 档案

CryptoHack Export-grade
摘要：CryptoHack Parameter Injection 的加强版 connect socket.cryptohack.org 13379 Alice 与 Bob 使用遗留数据库进行计算，格式如下： Intercepted from Alice: {"supported": ["DH1536", 阅读全文
posted @ 2025-02-28 13:18 YipChip 阅读(82) 评论(0) 推荐(0)
CryptoHack Parameter Injection
摘要：题目链接 connect socket.cryptohack.org 13371 你可以截获并伪造 Alice 和 Bob 基于 DH 密钥交换协议的所有数据，格式如下： Intercepted from Alice: {"p": "?", "g": "?", "A": "?"} Send to B 阅读全文
posted @ 2025-02-28 11:22 YipChip 阅读(108) 评论(0) 推荐(0)
CryptoHack Modulus Inutilis
摘要：题目脚本 #!/usr/bin/env python3 from Crypto.Util.number import getPrime, inverse, bytes_to_long, long_to_bytes e = 3 d = -1 while d == -1: p = getPrime(10 阅读全文
posted @ 2025-02-28 00:50 YipChip 阅读(39) 评论(0) 推荐(0)
CryptoHack Bean Counter
摘要：题目脚本 from Crypto.Cipher import AES import os KEY = ? class StepUpCounter(object): def __init__(self, step_up=False): self.value = os.urandom(16).hex() 阅读全文
posted @ 2025-02-27 11:16 YipChip 阅读(26) 评论(0) 推荐(0)
CryptoHack Symmetry
摘要：题目脚本 from Crypto.Cipher import AES KEY = ? FLAG = ? @chal.route('/symmetry/encrypt/<plaintext>/<iv>/') def encrypt(plaintext, iv): plaintext = bytes.f 阅读全文
posted @ 2025-02-26 14:24 YipChip 阅读(22) 评论(0) 推荐(0)
CryptoHack Flipping Cookie
摘要：题目脚本 from Crypto.Cipher import AES import os from Crypto.Util.Padding import pad, unpad from datetime import datetime, timedelta KEY = ? FLAG = ? @cha 阅读全文
posted @ 2025-02-26 08:56 YipChip 阅读(18) 评论(0) 推荐(0)
Cypher Chapter 6:DIGITAL CRYPTOGRAPHY
摘要：PUZZLE1 0110 0100 0110 0001 0111 0100 0110 0001 SOLVE1 通过 ASCII 码表可知，明文为 data。 PUZZLE2 HELLO 0011 1111 0010 1010 0011 1110 0010 0000 0010 1011 SOLVE2 阅读全文
posted @ 2025-02-22 10:49 YipChip 阅读(14) 评论(0) 推荐(0)
Cypher Chapter 5: MECHANISED CRYPTOGRAPHY
摘要：Chapter 5: MECHANISED CRYPTOGRAPHY 恩格玛机示意图： 谜题围绕恩格玛机展开。 PUZZLE1 Input/output: ABCDEFGHIJKLMNOPQRSTUVWXYZ Scrambler I: ABCDEFGHIJKLMNOPQRSTUVWXYZ UWYGA 阅读全文
posted @ 2025-02-21 23:02 YipChip 阅读(58) 评论(0) 推荐(0)