Fun with Adler-32
As is often the case when reading code written by someone else, I stumbled upon some curious DIY password generation snippet that used the Adler-32 checksum function to extend users passwords in a very weird, counter-intuitive and not-exactly-safer manner. Having never really toyed with this algorithm in a context where it is assumed to be a cryptographically secure hashing function (protip: it wasn’t designed for this purpose), I decided to make a simple use-case, in form of a simple CTF challenge, to get a better idea of the consequences of using it as such.