2025no writeups on CTFtime
CrewCTF 2025
12 challenges with 15 published solutions between them. CTFtime lists this event but has no writeups filed against it, so it is absent from the index CTFtime feeds. These were found in public repositories instead. Each link is pinned to the commit it was read from.
The event on CTFtimeUncategorised9
The upstream scoreboard did not say, so neither do we.
Hate Notes
3 official solutionsProfessor View
2 official solutionsBarelyontime
1 official solutionGemichan
1 official solutionLove Notes
1 official solutionStart
1 official solutionToo Old
1 official solutionWriteup01
1 official solution
OSINT2
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
Lunch
1 official solutionRandy Where Is The Plane
1 official solution
Cryptography1
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
Oneliner
1 official solution