Title: On the implementation of cryptoalgorithms based on algebraic graphs over some commutative rings
Author(s):

	J.S.Kotorowicz (University of Maria Curie-Skłodowska, Plac M.C. Skłodowkiej 1, 20-031 Lublin, Poland) ,
	V.A.Ustimenko (University of Maria Curie-Skłodowska, Plac M.C. Skłodowkiej 1, 20-031 Lublin, Poland)

The paper is devoted to computer implementation of some graph based stream ciphers. We compare the time performance of this new algorithm with fast, but no very secure RC4, and with DES. It turns out that some of new algorithms are faster than RC4. They satisfy the Madryga requirements, which is unusual for stream ciphers (like RC4). The software package with new encryption algorithms is ready for the demonstration.

Key words: cryptography, directed graphs, stream ciphers
PACS: 02.10.Hh, 02.10.Ox