Pointcheval–Stern signature algorithm
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In cryptography, the Pointcheval–Stern signature algorithm is a digital signature scheme based on the closely related ElGamal signature scheme. It changes the ElGamal scheme slightly to produce an algorithm which has been proven secure in a strong sense against adaptive chosen-message attacks, assuming the discrete logarithm problem is intractable in a strong sense.[1][2]
David Pointcheval and Jacques Stern developed the forking lemma technique in constructing their proof for this algorithm. It has been used in other security investigations of various cryptographic algorithms.
References
[edit]- ↑ D Pointcheval and J Stern. Security proofs for signature schemes. in U Maurer, ed. Adv in Crypt – Eurocrypt '96, 387–398, Springer-Verlag, 1996. Lect Notes in Comp Sci, nr 1070
- ↑ Pointcheval, David; Stern, Jacques (2000). "Security Arguments for Digital Signatures and Blind Signatures" (PDF). Journal of Cryptology. 13 (3): 361–396. doi:10.1007/s001450010003. S2CID 1912537. Archived from the original (PDF) on 2014-12-05. Retrieved 2014-11-28.
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