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math.GR2024
Exponent-Critical Groups
Simon R. Blackburn, William Cocke, Andrew Misseldine +1
We define and investigate the property of being `exponent-critical' for a finite group. A finite group is said to be exponent-critical if its exponent is not the least common multi…
math.GR2011
Cryptanalysis of three matrix-based key establishment protocols
Simon R. Blackburn, Carlos Cid, Ciaran Mullan
We cryptanalyse a matrix-based key transport protocol due to Baumslag, Camps, Fine, Rosenberger and Xu from 2006. We also cryptanalyse two recently proposed matrix-based key agreem…