LachlanS7 LachlanS7

A mathematician’s solution to ROT128

There’s not much to say here other than this challenge is BASED.

I store all of my private data in all of my programs. I mean, why not? It is safe, right…

I have finally created my own, completely secure, cipher. I am so confident that I will even allow you to encrypt your own data with it.

Frequency analysis with entropy

Ok. So buffer overflows exist, but if I put my data in a different function, my private data will be safe from buffer overflows.

The inner workings of ISBNs

A write up for the ÅngstromCTF crypto challenge substitution