Title :
An Image Encryption and Authentication Scheme
Author :
Qiu, Jing ; Wang, Ping
Author_Institution :
Coll. of Comput. & Inf. Sci., Southwest Univ., Chongqing, China
Abstract :
In this paper, a fast image encryption and authentication scheme is presented. In the proposed scheme, a 512-bit message authentication code generated by a keyed hash function is embedded into the image by reversible data embedding technique. Then the embedded image is masked by the pseudo random sequence in feedback mode. The embedded message authentication code not only plays the role of authentication but also contributes to the image encryption. The algorithm can effectively resist against chosen-plaintext attack or known-plaintext attack. Theoretical analysis and computer simulation indicate that our algorithm is efficient and highly secure.
Keywords :
authorisation; cryptography; embedded systems; image processing; message authentication; random sequences; chosen-plaintext attack; embedded message authentication code generation; image authentication scheme; image encryption; keyed hash function; known-plaintext attack; pseudorandom sequence; reversible data embedding technique; Authentication; Chaos; Correlation; Encryption; Histograms; Message authentication; Authenticated encryption; Image encryption; Reversible data embedding;
Conference_Titel :
Computational Intelligence and Security (CIS), 2011 Seventh International Conference on
Conference_Location :
Hainan
Print_ISBN :
978-1-4577-2008-6
DOI :
10.1109/CIS.2011.178