Securing JPEG2000 code-streams
JPEG2000 is an emerging international standard for still image compression and is becoming the solution of choice for many digital imaging fields and applications. Part 8 of the standard, named JPSEC, is concerned with all the security aspects of JPEG2000 image code-streams, with emphasis presently on access control and authentication. An important aspect of JPEG2000 is its “compress once, decompress many ways” property [Taubman and Marcellin, 2000], i. e., it allows extraction of transcoded sub-images (e.g., images with various resolutions, pixel fidelities, tiles and components) from a single compressed image code-stream. This paper presents our proposals to the JPSEC Working Group on an authentication scheme and an access control scheme for JPEG2000 image code-streams. Both schemes are fully compatible with the core part of the JPEG2000 standard. The authentication scheme possesses the so called “sign once, verify many ways” property. That is, it allows users to verify the authenticity and integrity of any transcoded sub-images extracted from a single code-stream protected with a single signature. The access control has the “encrypt once, access many ways” property. That is, it allows users access to transcoded sub-images from a single encrypted JPEG2000 code-stream.
Information Security and Trust
Security in the 21st Century
D.T. LEE, S. SHIEH and D. TYGAR
City or Country
DENG, Robert H.; Wu, Yongdong; and MA, Di.
Securing JPEG2000 code-streams. (2005). Security in the 21st Century. 229-253. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/841