Abstract
In this paper, instruction set extensions for a reduced instruction set pc processor ar given to enhance the software performance of the information secret writing normal (DES), the triple DES, the international encoding algorithmic program (IDEA), and the advanced secret writing normal (AES) algorithms. The most computationally intensive operations of every algorithmic program are off-loaded to a group of freshly outlined directions. the extra hardware needed to support these directions is integrated into the processor’s knowledge path. for every of the targeted algorithms, comparisons ar given between ancient package implementations and new implementations that cash in of the extended instruction set design. Results show that the use of the planned directions considerably reduces program code size, and improves secret writing and coding output.