International Journal of Engineering and Technology

Information sharing through digital media is a vital and challenging one. Those challenges are addressed with the help of cryptographic and stenographic techniques. In general, strength of the symmetric key cryptographic algorithms is based on keys. The objective of this paper is to propose an approach to avoid image distortion due to transmission noise while transferring the image to the receiver for generating the key. For key generation a structure similar to alphabetical trie is used, which is generated from a unique character set. Triple DES algorithm is used for experimental purpose, which is well known for its block of randomized key bits based security and easy implementation.