INFORMATION SECURITY MODEL USING TWOFISH ENCRYPTION AND DECRYPTION ALGORITHM

Abstract

Cryptography has gained more attention from researchers due to the need to enable the security of messages sent over an unsecure network. Message sender want to ensure that only authorized receiver is able to interpret the message sent. So, even if a message falls in the hands of another person other than the authorized recipient, the message is still secured. This proposed system shows how a symmetric key algorithm (Twofish) is used to encrypt messages to make it secure when sent over the network. In this paper, the Twofish algorithm with a 16 bits character key length is implemented using JAVA programmimg language. The result is efficient because it gives a different ciphertext each time encryption is performed.