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math.GR2025
Preimages for Zémor's Cayley hash function
Eilidh McKemmie, Amol Srivastava
In 1991, Zémor proposed a hash function which provides data security using the difficulty of writing a given matrix as a product of generator matrices. Tillich and Zémor subsequent…
math.GR2025
Low-genus primitive monodromy groups with a nonunique minimal normal subgroup
Spencer Gerhardt, Eilidh McKemmie, Danny Neftin
Let be a Riemann surface, and let be an indecomposable (branched) covering of genus and degree whose monodromy group has more than one m…