1041_67. [历年真题] Gradient sky
出处: 2020-CSICTF-Misc-Gradient sky
题目描述: Gradient sky is a begginer level ctf challenge which is aimed towards rookies.
难度🌟: 2 通过数: 897 标签: CSICTF 图片 隐写 2020 Misc
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
1045_63. [历年真题] In Your Eyes
出处: 2020-CSICTF-Misc-In Your Eyes
题目描述: 'I talk of wondrous things I see, You picture purely out of imagination, You wonder how your light is spent, Days seem bright but you don't know for sure. I stand in your place and close my eyes, What do I see? (Open your windows to see the secret message)'
难度🌟: 6 通过数: 390 标签: CSICTF 图片 隐写 2020 Misc
writeup: 查看
1043_65. [历年真题] Panda
出处: 2020-CSICTF-Misc-Panda
题目描述: I wanted to send this file to AJ1479 but I did not want anyone else to see what's inside it, so I protected it with a pin.
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
1044_64. [历年真题] unseen
出处: 2020-CSICTF-Misc-unseen
题目描述: With his dying breath, Prof. Ter Stegen hands us an image and a recording. He tells us that the image is least significant, but is a numerical key to the recording and the recording hides the answer. It may seem as though it's all for nothing, but trust me it's not.
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
1042_66. [历年真题] Archenemy
出处: 2020-CSICTF-Misc-Archenemy
题目描述: ohn likes Arch Linux. What is he hiding?
1033_75. [历年真题] Esrever
出处: 2020-CSICTF-Reverse-Esrever
题目描述: I encrypted my flag so that nobody can see it, but now I realize I don't know how to decrypt it. Can you help me?
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?
1032_76. [历年真题] pydis2ctf
出处: 2020-CSICTF-Reverse-pydis2ctf
题目描述: I learnt Python in school but I have no clue what this is!