217_444. [历年真题] apl
出处: 2018-网鼎杯-第4场-Crypto-apl
题目描述: 如遇到大写请转换为小写，flag格式为flag{.*}
207_453. [历年真题] hafuhafu
出处: 2018-网鼎杯-第3场-Crypto-hafuhafu
难度🌟: 5 通过数: 36 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
1038_70. [历年真题] Mein Kampf
出处: 2020-CSICTF-Crypto-Mein Kampf
题目描述: We have intercepted the enemy's communications, but unfortunately, some data was corrupted during transmission. Can you recover the message?
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
23_541. [历年真题] 破解加密数据
出处: 2019-工业信息安全技能大赛-山东站-破解加密数据
题目描述: flag形式为 flag{}
难度🌟: 4 通过数: 97 标签: 山东站 RSA 2019 工业信息安全技能大赛(ICSC) 工业控制(ICS) Crypto
writeup: 查看
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
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
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
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
writeup: 查看
929_152. [历年真题] rosb
出处: 2020-第五空间智能安全大赛-Crypto-rosb
题目描述: easy RSA
难度🌟: 4 通过数: 81 标签: RSA 第五空间智能安全大赛 2020 Crypto
writeup: 查看
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
writeup: 查看
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
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
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
writeup: 查看
242_431. [历年真题] Polybius
出处: 2020-BJDCTF-Crypto-Polybius
难度🌟: 3 通过数: 83 标签: BJDCTF 2020 Crypto
writeup: 查看