Eliptic Curve Based Threshold Proxy Signature Scheme with Known Signers
Fundamenta Informaticae
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Cryptography in its present state relies increasingly on complex mathematical theories, e.g., elliptic curves, group theory, etc. We address in this article the problem of proxy signatures and we set this problem in the framework of Lie algebras. We show how to use a chosen maximal set of differentiable automorphisms in order to carry out the task of proxy signing. We also show possible attacks and the way to protect against them.