computer systems

Current situation of efficiency evaluation of security components of computer systems and networks is analyzed. It is founded that mentioned in the article effectiveness assessment methods are not sufficiently provided with fundamental theory and methodology and to great extent are subjective. Usage of generalized efficiency evaluation criterion is proposed. Methodology of usage of such criterion on the test case with block ciphers is overviewed.

The approach to the classification of communication media networks on chip, based on consideration of the place of insertion of these environments.