Fading Coder

Elliptic Curve Cryptography (ECC) presents several attack scenarios depending on curve parameters. This analysis covers discrete logarithm computation, Smart's attack, and the Pohlig-Hellman algorithm with practical implementations. Discrete Logarithm Function The discrete_log() function provides a...

Problem 1 – Linear Combination Recovery The flag is split into two parts m1 and m2. We are given a linear relation a * m1 - b * m2 = 1 where the coefficients a and b are known and coprime. Reducing modulo b gives m1 ≡ inverse(a, b) (mod b) Because m1 might be40000 larger than the modulus, we iterate...