Performance and analysis of NTRU and Advanced NTRU cryptosystems

Authentication and Confidentiality is the main goal of the public key cryptosystems deal when communication takes place between both the parties. The mostly used cryptographic methods are broadly classified as symmetric and asymmetric. The DES comes under the category of symmetric key cryptosystem whereas RSA, NTRU[1] belongs to the category of asymmetric key cryptosystem. NTRU ( Nth degree truncated polynomial ring units ) is again extended to Advanced NTRU.This paper describes and represents a comparative study on both the cryptosystems by using variable sized text files as input and the results were analyzed in an effective way. This has given an overall idea about the performance of the cryptosystem.