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math.AC2025
Key exchange protocol based on circulant matrix action over congruence-simple semiring
Alvaro Otero Sanchez
We present a new key exchange protocol based on circulant matrices acting on matrices over a congruence-simple semiring. We describe how to compute matrices with the necessary prop…
math.AC2025
Cryptoanalysis of a tropical triad matrix semiring key exchange protocol
Alvaro Otero Sanchez
This article analyzes a key exchange protocol based on the triad tropical semiring, recently proposed by Jackson, J. and Perumal, R. We demonstrate that the triad tropical semiring…