Blind 384-bit digital signature scheme

Authors:
Alexandr Moldovyan;Nikolay Moldovyan;Evgenia Novikova
Affiliations:
Laboratory of Cryptology, St. Petersburg Institute for Informatics and Automation (SPIIRAS), Saint-Petersburg, Russia;Laboratory of Cryptology, St. Petersburg Institute for Informatics and Automation (SPIIRAS), Saint-Petersburg, Russia;Laboratory of Computer Security Problems, St. Petersburg Institute for Informatics and Automation (SPIIRAS), Saint-Petersburg, Russia
Venue:
MMM-ACNS'12 Proceedings of the 6th international conference on Mathematical Methods, Models and Architectures for Computer Network Security: computer network security
Year:
2012

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Abstract

The blind digital signature protocols play important role in e-commerce applications. In this paper the new blind digital signature scheme with 384-bit signature length is proposed. The latter is achieved by using finite subgroup of the multiplicative group of the finite ring of residues modulo n, where n is a product of two large primes. It is shown that proposed signature satisfies unlinkability and unforgeability properties.