Nowruz 1404
11 challenges with 16 published solutions between them. No writeups were ever filed against this event's listing, so its solutions were found in public repositories instead. Each link is pinned to the commit it was read from.
The event listingUncategorised6
The upstream scoreboard did not say, so neither do we.
EntretienGalactique
2 official solutionsAlso written up in: ARKANYOTA/write-ups, ARKANYOTA/write-ups
MessageLointain
2 official solutionsAlso written up in: ARKANYOTA/write-ups, ARKANYOTA/write-ups
Challenge 2
1 official solutionAlso written up in: ARKANYOTA/write-ups
EntretientGalactique
1 official solutionAlso written up in: ARKANYOTA/write-ups
Pix2Num
1 official solutionAlso written up in: ARKANYOTA/write-ups
SaturnCipher
1 official solutionAlso written up in: ARKANYOTA/write-ups
Cryptography3
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.
Also written up in: rerrorctf/writeups, rerrorctf/writeups, rerrorctf/writeups
EZ RSA
2 official solutionsAlso written up in: rerrorctf/writeups, rerrorctf/writeups
EZ XOR
1 official solutionAlso written up in: rerrorctf/writeups
Binary exploitation2
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
Seen Guessing
1 official solutionAlso written up in: rerrorctf/writeups
Seen Shop
1 official solutionAlso written up in: rerrorctf/writeups