THE HARDWARE IMPLEMENTATION AND EVALUATION OF A CRYPTOGRAPHIC DEVICE USING THE VIGENERE ALGHORITHM

Abstract

The issues of hardware implementation of a cryptodevice based on the Vigenère algorithm have been studied. The mathematical substantiation of the algorithm is presented, a permanent memory device for storing the Vigenère square and a block diagram of the algorithm for loading text symbols and a cryptokey are developed. A block diagram of a cryptodevice based on the Vigenère algorithm is designed and its performance and hardw­a­r­e costs are estimated from the point of view of FPGA resources.