For your first assignment, break ChaCha20!

nc babycha.chal.irisc.tf 10100

babycha.tar.gz

By: sera

guess the password lol

nc accessible-sesasum-indicum.chal.irisc.tf 10104

accessible-sesamum-indicum.tar.gz

By: skat

Hash the world

nc dhash.chal.irisc.tf 10101

dhash.tar.gz

By: sera

I've found this secret communication system running on a server. Unfortunately it uses AES so there's not much I can do.

nc integral-communication.chal.irisc.tf 10103

integral-communication.tar.gz

By: lambda

ECDSA Private Key Recovery

nc manykey.chal.irisc.tf 10102

manykey.tar.gz

By: sera

A very festive key exchange I found

nc beach.chal.irisc.tf 10106

beach.tar.gz

By: sera

RC4 isn't safe, but good thing I'm not reusing the rc4 key!

nc attack-of-the-kleins.chal.irisc.tf 10105

attack-of-the-kleins.tar.gz

Hint!

You may need to run your script more than once if you're sure it's correct

By: nope