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
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
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
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
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?
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?
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
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