We would like to share a free flag with you! According to Shamir you need five shares, but we will only give you three ;) And we keep the modulus we used secret, all you get to know is that it is a random 1024-bit prime. The flag was converted to an integer via a function called bytes_to_long().

This challenge has been provided by https://squeamishossifrage.eu/. Visit the site for more Crypto challenges! (after finishing the MCH2022 CTF of course ;-) )