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Oh_No_Hastad

Hard Crypto

Author: careless_finch

This challenge is a simple attack which is Hastad's Broadcast attack so bascially CRT (chinese remainder is used to solving congruent equations) as e=3 we need to solve these these set of equations

we can solve it by using either using CRT from sympy or normal CRT

script

Amrita InCTF 2026

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