2013weight 20.00MadProps
HackIM 2013
4 challenges with 5 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.
Full task list on CTFtimeCryptography3
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
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
- crypto
- vernam
- otp
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
- crypto
- rsa
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, john_pollard
Uncategorised1
The upstream scoreboard did not say, so neither do we.
Web200
2 official solutionsAlso written up in: BatmansKitchen/ctf-writeups, BatmansKitchenCTF/ctf-writeups