1. 1. Kaluznin L.A. Introduction to general algebra. М.: Nauka. 1973. 447 p.
2. 2. Sergienko I.V., Kryvyi S.L., Provotar O.I. Algebraic aspects of informational technologies. K.:Interservice. 2018. 411 p.
3. 3. Cooke D.J., Bez H.E. Computer mathematics. Cambridge University Press. Cambridge. 1984. 384 p.
4. 4. Menezes A., van Oorschot P., Vanstons S. Handbook of Applied Cryptography. CRC Press. 1996. 661 p.
5. 5. Coblitz N. A course of number theory and cryptography. М.: ТВП. 2001. 260 p.