Abstract:
Information security is becoming more important
in data storage and transmission. Because of widely
used images in security process, it is the important
confidential image data from unauthorized access.
The original image was converted by using two
dimensional transform and encryption 3DES with
two keys. This system presented a transformation
algorithm based on the image cosine transformation
and a well known encryption and decryption
algorithm called 3DES. This paper also analyzed the
image encryption algorithms DCT and 3DES. The
original image is encrypted after the transformation
process. In this approach to reduce the computational
requirements for huge volume of images and
resulting high speed transformation and encryption
system.
