GROUP RING CRYPTOSYSTEM OF A CYCLIC GROUP OVER THE RESIDUE PAIRS RING
S. K. ROSOSHEK *
Faculty of Mathematics and Mechanics, Tomsk State University, Tomsk, Russia
*Author to whom correspondence should be addressed.
Several years ago, the theoretical cryptoscheme of group ring KG was developed by the author, where K is an arbitrary ring and G is an arbitrary group. In this paper, its practical modification is developed and this theoretical scheme is implemented for a finite cyclic group and residue pairs ring. For practical purposes a trade-off between efficiency and security of the cryptosystem is offered.
Keywords: Public key cryptosystem, group ring, automorphism