Department of Mathematics and Computer Applications, PSG College of Technology, Coimbatore– 641 004, Tamilnadu, India.
This paper is an extended work of “Public Key Cryptosystem based on Number Theoretic Transforms” published in “International journal of Computational Mathematical Sciences”. The discussed public key cryptosystem is vulnerable to brute force attack. In this paper it is analyzed, how the brute force attack is possible in the developed cryptosystem and to resist such an attack the key agreement revised.
Cryptography, Number Theoretic Transforms, Encryption, Decryption, Key agreement, discrete logarithm problem, Integer Factorization problem
