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math.GR2008★ 2 cited
An authentication scheme based on the twisted conjugacy problem
Vladimir Shpilrain, Alexander Ushakov
The conjugacy search problem in a group is the problem of recovering an from given and . The alleged computational hardness of this problem in s…
cs.CR2008★ 2 cited
Zero-knowledge authentication schemes from actions on graphs, groups, or rings
Dima Grigoriev, Vladimir Shpilrain
We propose a general way of constructing zero-knowledge authentication schemes from actions of a semigroup on a set, without exploiting any specific algebraic properties of the set…