1085_47. [历年真题] Tesla工业APP分析
出处: 2019-工业信息安全技能大赛-哈尔滨站-Tesla工业APP分析
题目描述: 某安全团队捕获间谍发送的工业APP，安全人员怀疑间谍以某种方式将机密信息传递出去，尝试分析该文件，找出flag。
难度🌟: 8 通过数: 90 标签: 哈尔滨站 Android 2019 工业信息安全技能大赛(ICSC) 工业控制(ICS) Reverse Crypto
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
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?
1037_71. [历年真题] The Climb
出处: 2020-CSICTF-Crypto-The Climb
题目描述: We are not lost, we're right here somewhere on this little blue line. Wait, why do I feel like I'm being watched?
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
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
989_105. [历年真题] 神秘文件
出处: 2017-赛客夏令营-Misc-神秘文件
题目描述: 一个颇为神秘的东西
难度🌟: 7 通过数: 83 标签: 2017 赛客夏令营 Crypto
writeup: 查看
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
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
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
writeup: 查看
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
writeup: 查看
949_137. [历年真题] lattice
出处: 2020-SCTF-Crypto-lattice
题目描述: flag格式为flag{.+}
941_144. [历年真题] crypto01
出处: 2016-西普杯京津冀信息安全挑战赛-Crypto-crypto01
题目描述: 注意看看hex哦，flag格式为flag{xxx}
难度🌟: 9 通过数: 26 标签: 2016 西普杯京津冀信息安全挑战赛 Crypto
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
896_175. [历年真题] rand
出处: 2020-网鼎杯-白虎组-Crypto-rand
题目描述: 张三最近喜欢上了随机数。