Ievdina A. The construction of reconfigurable hardware-software tools of strengthening the protection of the information based on symmetric block encryption algorithms

Dissertation is dedicated to the research and development of construction principles of reconfigurable hardware-software tools for implementing the methods of strengthening cryptographic protection based on symmetric block encryption algorithms. The possible methods of strengthening information security based on block cipher algorithms are investigated in the paper. The appropriateness of reconfigurable coprocessor on FPGA for implementing those methods is substantiated. The generalized reconfigurable crypto processor structure on the basis of construction principles of block cipher algorithms is proposed. In this structure the components that independent from certain algorithms were singled out. Those components can be pre-designed, debugged and tested in advance. A typical block diagrams to implement all identified methods of strengthening information security were developed. The method of reconfigurable crypto processors synthesis, which implements tools of strengthening cryptographic protection, was developed. This method allows user to harmonize the strengthening method with characteristics of available computing facilities. The method is able to speed up the process of creating configurations to be loaded into the FPGA. Some strengthening tools based on block cipher algorithms for certain types of reconfigurable coprocessor were realized as an experimental system. Components of this system can be used for practical realization of the proposed method.