SYNTHESIZED REPORT ON THE COMPARISON OF LUT AND SPLITTING METHOD FOR DECRYPTION UNIT FOR AES

Abstract

Any encryption or decryption method will have certain key based on which the encoding and decoding will be performed. This is done to avoid access of data by unauthorized personal. Without the decoding key, encoded data is junk. Similarly, Federal Information Processing Standard (FIPS) developed Advanced Encryption Standard, which was used for saving digital data especially in magnetic tape like debit cards and credit cards, so that it provides security for the details and also this can be used in security of PDA’s which need to work very efficiently with high speed encoding and decoding and also need to consume less area as possible. It can be built using purely hardware or purely software i.e. using programming language such as Verilog. Decryption and Encryption has main part, Mix Columns and Inverse Mix columns, on which the whole AES operation depends. Here synthesis is performed for the decryption unit of the AES, which can be performed in two methods i.e. Look-up Table and Splitting method. Comparison of two methods is done by synthesizing the program in Spartan -3E of Xilinx ISE 14.1 Suite.