Foundations of the cryptography. Cryptography and coding. Mono-alphabetical cipher. Poly-alphabetical cipher. Public key systems. DES. RSA algorithm. Cryptography in telecommunication networks.
		Recommended literature:
		Grošek, O., Porubský, Š. : Šifrovanie. Algoritmy, metódy, prax. Grada, Praha, 1992. Simsom Garfinkel : PGP, šifrovaní pro každého. Computer Press, Praha, 1998