Title :
An asymmetric image encryption based on matrix transformation
Author :
Shuangyuan, Yang ; Zhengding, Lu ; Shuihua, Han
Author_Institution :
Sch. of Comput. Sci., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In this paper, it is shown how to adapt a certain matrix transformation to create a novel asymmetric block encryption scheme. The proposed scheme is especially useful for encryption of large amounts of data, such as digital images. First, a pair of keys are given by using the matrix transformation; second, the image is encrypted in its transformation domain. This scheme can be conveniently realized and locate possible changed regions.
Keywords :
image coding; matrix multiplication; public key cryptography; asymmetric block encryption; asymmetric image encryption; digital images; matrix transformation; Computer science; Cryptography; Data security; Digital images; Discrete cosine transforms; Internet; Pixel; Privacy; Protection; Public key;
Conference_Titel :
Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8593-4
DOI :
10.1109/ISCIT.2004.1412451
