2024from public repositories
SPCS 2024
7 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 liveCryptography7
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
4 Quater
2 official solutionsAlso written up in: tranminhprvt01/CTF-writeups, tranminhprvt01/CTF-writeups
Attack on AES
1 official solutionAlso written up in: tranminhprvt01/CTF-writeups
Also written up in: tranminhprvt01/CTF-writeups
I want to go to London
1 official solutionAlso written up in: tranminhprvt01/CTF-writeups
Letter in a bottle
1 official solutionAlso written up in: tranminhprvt01/CTF-writeups
One Time Pad
1 official solutionAlso written up in: tranminhprvt01/CTF-writeups
Unrevealed secret
1 official solutionAlso written up in: tranminhprvt01/CTF-writeups