AES crypto service with a low quality PRNG results in trivial key selection.

Full writeup [https://ctf.rip/write-ups/crypto/kashictf-2025/#randominator](https://ctf.rip/write-ups/crypto/kashictf-2025/#randominator)

Original writeup (https://ctf.rip/write-ups/crypto/kashictf-2025/#randominator).