The Article „The protection of the economic information in computer networks” emphasizes the importance of securing the economic information in computer networks, the Internet network respectively.

It is described one of the most used encryption algorithms such as the DES algorithm, also its improved alternative: the triple DES (3DES). In order to have a good understanding of the described algorithms, first there are presented the preliminary ideas from the cryptography domain, for example: the objectives aimed by a cryptographic algorithm, definitions, the criteria which must be accomplished so that the cryptographic system to be considered secure and efficient.

cryptographic system, computer networks, encryption algorithms