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What is ElGamal Signature Scheme Cryptanalysis about?
This document summarizes an algorithm for cryptanalyzing ElGamal-type digital signature schemes using integer decomposition. It improves upon the Kuwakado-Tanaka algorithm by more efficiently finding a vector (γ1, γ2) to solve a congruence equation modulo q, allowing the algorithm to always find a solution and run in polynomial time, as long as two signatures have message nonces bounded by O(√q). The improved algorithm decomposes integers using the extended Euclidean algorithm, generalizes to work for any t
- Author
- gsunilcse
- Language
- EN