2022from public repositories
Posts Ctf Sdctf 2022
5 challenges with 8 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised3
The upstream scoreboard did not say, so neither do we.
Encrypt
2 official solutionsAlso written up in: deut-erium/WriteUps, deut-erium/ctf-writeups-2022
Solve2
2 official solutionsAlso written up in: deut-erium/WriteUps, deut-erium/ctf-writeups-2022
Tasty Crypto Roll
2 official solutionsAlso written up in: deut-erium/WriteUps, deut-erium/ctf-writeups-2022
Cryptography2
Recover a plaintext or a key from something that was supposed to protect it. In practice: identify the scheme, find the parameter the author got wrong, exploit it.
Solve it with:Cipher identifier and automatic decoderVigenere cipher solver with automatic key recoveryRSA decryption and attack runnerWiener’s attack on small RSA private exponentsIn-browser hash cracker with rule transformsLearn: Classical ciphers and frequency analysisLearn: RSA and the parameters that break it
2022 05 10 SDCTF 2022 Tasty Crypto Roll
1 official solutionAlso written up in: deut-erium/WriteUps
2022 05 10 SDCTF Tasty Crypto Roll
1 official solutionAlso written up in: deut-erium/ctf-writeups-2022