Abstract:
Cryptograph is crucial to communicating medium.
The use of cryptography today becomes widespread, not just in
military situation but for commercial and private purposes. So
the electronic messages and documents which are sent to
communicating transaction necessarily have to be efficient
secure system and be equivalent of signature , authentication
and identification found in paper document world. The main
focus of this paper is to implement a cryptosystem that provides
faster and efficient security system in electronic communication
based on the use of combination of both secret-key (Blowfish)
algorithm and public key(NTRU) algorithm, called digital
envelope.
