965_125. [历年真题] 栅栏解救
出处: 2016-第五届山东省网络安全竞赛-Crypto-栅栏解救
题目描述: flag被栅栏围起来了，赶紧把它解救出来吧，flag格式为flag{xxx}
难度🌟: 2 通过数: 1011 标签: 2016 第五届山东省网络安全竞赛 Crypto
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966_124. [历年真题] 滴答滴答
出处: 2016-第五届山东省网络安全竞赛-Crypto-滴答滴答
题目描述: 滴答滴答滴答。请将结果转换为大写，flag格式为flag{xxx}
难度🌟: 2 通过数: 642 标签: 2016 第五届山东省网络安全竞赛 Crypto
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967_123. [历年真题] 回转十三位
出处: 2016-第五届山东省网络安全竞赛-Crypto-回转十三位
题目描述: 根据密文获得明文，flag格式为flag{xxx}
难度🌟: 3 通过数: 491 标签: 2016 第五届山东省网络安全竞赛 Crypto
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240_432. [历年真题] sign in
出处: 2020-BJDCTF-Crypto-sign in
难度🌟: 2 通过数: 487 标签: BJDCTF 2020 Crypto
writeup: 查看
1036_72. [历年真题] little RSA
出处: 2020-CSICTF-Crypto-little RSA
题目描述: The flag.zip contains the flag I am looking for but it is password protected. The password is the encrypted message which has to be correctly decrypted so I can useit to open the zip file. I tried using RSA but the zip doesn't open by it. Can you help me get the flag please?
难度🌟: 3 通过数: 428 标签: CSICTF RSA 2020 Crypto
writeup: 查看
208_454. [历年真题] Not_only_base
出处: 2018-网鼎杯-第3场-Crypto-Not_only_base
题目描述: not only base
难度🌟: 2 通过数: 356 标签: 2018 Crypto 网鼎杯
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882_186. [历年真题] boom
出处: 2020-网鼎杯-青龙组-Crypto-boom
题目描述: Boom there have a game. https://pan.baidu.com/s/1cbXhylOY3scsFwJwGoBpfw 提取码：(5w89) https://share.weiyun.com/5FBXctl
难度🌟: 3 通过数: 337 标签: 青龙组 2020 Crypto 网鼎杯
writeup: 查看
246_425. [历年真题] rsa_output
出处: 2020-BJDCTF-Crypto-rsa_output
题目描述: rsa modulo-related attacks
难度🌟: 3 通过数: 258 标签: BJDCTF 2020 Crypto
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243_429. [历年真题] base??
出处: 2020-BJDCTF-Crypto-base??
题目描述: 这是base??
难度🌟: 3 通过数: 179 标签: BJDCTF 2020 Crypto
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1039_69. [历年真题] Quick Math
出处: 2020-CSICTF-Crypto-Quick Math
题目描述: Ben has encrypted a message with the same value of 'e' for 3 public moduli - n1 = 86812553978993 n2 = 81744303091421 n3 = 83695120256591 and got the cipher texts - c1 = 8875674977048 c2 = 70744354709710 c3 = 29146719498409. Find the original message. (Wrap it with csictf{})
难度🌟: 4 通过数: 162 标签: CSICTF 2020 Crypto
writeup: 查看
219_443. [历年真题] shanghai
出处: 2018-网鼎杯-第4场-Crypto-shanghai
难度🌟: 3 通过数: 158 标签: 2018 Crypto 网鼎杯
writeup: 查看
245_427. [历年真题] EasyRSA
出处: 2020-BJDCTF-Crypto-EasyRSA
题目描述: 来做做数学题吧！
难度🌟: 5 通过数: 157 标签: BJDCTF 2020 Crypto
writeup: 查看
244_428. [历年真题] rsa
出处: 2020-BJDCTF-Crypto-rsa
题目描述: where's the e? hint: e=52361
难度🌟: 4 通过数: 144 标签: BJDCTF 2020 Crypto
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900_171. [历年真题] simple
出处: 2020-网鼎杯-朱雀组-Crypto-simple
难度🌟: 4 通过数: 143 标签: 朱雀组 2020 Crypto 网鼎杯
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883_183. [历年真题] you raise me up
出处: 2020-网鼎杯-青龙组-Crypto-you raise me up
题目描述: you raise me up. https://pan.baidu.com/s/127CeUOsrZIrEExcmrL2tBQ 提取码：(c6eh) https://share.weiyun.com/5aL4Cmj
难度🌟: 3 通过数: 137 标签: 青龙组 2020 Crypto 网鼎杯
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1035_73. [历年真题] Rivest Shamir Adleman
出处: 2020-CSICTF-Crypto-Rivest Shamir Adleman
题目描述: These 3 guys encrypted my flag, but they didn't tell me how to decrypt it.
难度🌟: 4 通过数: 131 标签: CSICTF 2020 Crypto
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209_451. [历年真题] track_hacker
出处: 2018-网鼎杯-第3场-Crypto-track_hacker
难度🌟: 3 通过数: 130 标签: 2018 Crypto 网鼎杯
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1040_68. [历年真题] Modern Clueless Child
出处: 2020-CSICTF-Crypto-Modern Clueless Child
题目描述: I was surfing the crimson wave and oh my gosh I was totally bugging. I also tried out the lilac hair trend but it didn't work out. That's not to say you are any better, you are a snob and a half. But let's get back to the main question here- Who am I? (You don't know my name)
难度🌟: 4 通过数: 117 标签: CSICTF 2020 Crypto
writeup: 查看
241_430. [历年真题] 编码与调制
出处: 2020-BJDCTF-Crypto-编码与调制
难度🌟: 3 通过数: 108 标签: BJDCTF 2020 Crypto
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968_122. [历年真题] 算法逆向
出处: 2016-第五届山东省网络安全竞赛-Crypto-算法逆向
题目描述: 根据给出的密文和加密程序破解出明文
难度🌟: 5 通过数: 105 标签: 2016 第五届山东省网络安全竞赛 Crypto
writeup: 查看