Comparison Of Blowfish And Twofish Algorithms For Image File Cryptography

Abstract

The issue of security and confidentiality of data and information is very important. One way to keep the data is by encryption and decryption techniques or also often called cryptography. Cryptography is the science and art of keeping data secure by turning it into an unrecognizable form. Cryptography can be applied to different types of files one of which is an image. Blowfish and twofish algorithms are used to discuss the level of each algorithm's density. The results showed that the average speed ratio of the blowfish algorithm and the twofish algorithm in milliseconds was 4355: 4267.