2020from public repositories
Owasp.Latam.Tour 2020
7 challenges with 7 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
Classic
1 official solutionAlso written up in: cxzero/ctf-writeups
Https
1 official solutionAlso written up in: cxzero/ctf-writeups
MyOwnCrypto
1 official solutionAlso written up in: cxzero/ctf-writeups
sexyRSA
1 official solutionAlso written up in: cxzero/ctf-writeups
Also written up in: cxzero/ctf-writeups
teenRSA
1 official solutionAlso written up in: cxzero/ctf-writeups
Twinies
1 official solutionAlso written up in: cxzero/ctf-writeups