Analysis of Avalanche Effect in Plaintext of DES using Binary Codes
Akash Kumar Mandal, Archana Tiwari, Chhatrapati Shivaji · 2012
With the fast progression of digital data exchange in electronic way, information security is becoming more important in data storage and transmission. Cryptography has come up as a solution which plays a vital role in information security system against malicious attacks. This security mechanism uses some algorithms to scramble data into unreadable text which can be only being decoded or decrypted by party those possesses the associated key. These algorithms consume a significant amount of computing resources such as CPU time, memory and computation time. In this paper a most widely used symmetric encryption technique i.e. Data Encryption Standard (DES) have been implemented using MATLAB software. After the implementation, this encryption technique was analyzed based on a parameter called Avalanche effect, using binary codes. Avalanche Effect due to one bit variation in plaintext keeping the key constant after mapping it in a binary code, Experimental results shows that the proposed algorithm exhibit significant high Avalanche Effect which improves the level of the security.