Unique Key Using Encryption and Decryption of Image

Abstract: Image data security is the essential portion in communication and multi media world. During storing and sharing, avoid third party access of data is the challenge one. Providing security of data is the clever work and art also. Many protection algorithms are used in recent years. Protection may be given of a data is converting the original in to some unknown form, signals, sketch etc., which is not understand by any one. Cryptography is the best technique of image data security. In Greek, crypto refers „hidden‟ and graphy refers „script‟. Cryptography has two processes namely encryption and decryption. Encryption achieves the conversion by possessing a key of original data into unreadable form called encoding. Restoring of encrypted data in to original is decoding or decryption. Key, code or password is the vital role in cryptography. This paper presents the performance of encryption and decryption of an image using a single key algorithm and tested on some images and shows fine results.

General terms: Cryptography, Security, Encoding, Decoding

Keywords: Image processing, Encryption, decryption, key, password