Title :
A Real-Time Selective Video Encryption Using Context-Key Control
Author :
Sun, Hung-Min ; Leu, Muh-Chyi
Author_Institution :
Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In recent years, as video technologies have been broadly used in TV, communication and multimedia, video security has been gaining in importance. This paper proposes a real-time selective video encryption using context-key control. The new context-key control encryption in this scheme is modified from ElGamal encryption. Using context-key control, our scheme can perform a low exponent operation and secure encryption. We apply our encryption scheme to perform selective encryption on video DCT coefficients. In our performance and security analysis, our scheme is a secure and efficient video encryption scheme, and can be well applied to the video protection.
Keywords :
cryptography; discrete cosine transforms; video signal processing; ElGamal encryption; context-key control; real-time selective video encryption; security analysis; video DCT coefficients; video protection; video security; Communication system control; Computer security; Context; Cryptography; Discrete cosine transforms; Frequency domain analysis; Information security; National security; Video compression; Videoconference; Discrete Cosine Transform (DCT); context-key; low exponent; selective video encryption;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.217
