Soft multimedia content authentication using the distance-preserving hash function

Dahua Xie; C.-C. Jay Kuo

doi:10.1117/12.571515

25 October 2004 Soft multimedia content authentication using the distance-preserving hash function

Dahua Xie, C.-C. Jay Kuo

Proceedings Volume 5600, Multimedia Systems and Applications VII; (2004) https://doi.org/10.1117/12.571515
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

A new paradigm of one-way hash function, called the distance-preserving hash function (DP hash function), is proposed and a soft multimedia content authentication scheme is developed accordingly in this work. The DP hash function has a distinct characteristic from regular hash functions. That is, when it is equipped with a correct key, the difference between two outputs reflects the distance between the corresponding inputs. However, if a wrong key value is used, the DP hash function reduces to a regular one-way hash function. We examine the theoretical aspect of the DP hash function and propose a practical way for its construction. The DP hash value of the multimedia feature vector is used as the authenticator for the corresponding content. By comparing the DP hash of received data and the received DP hash (authenticator), users can obtain the error between the received data and the original data. This error information indicates a degree of authenticity and allows users to render a soft decision rather than an "authentic or non-authentic" hard decision. Such a soft decision is helpful in applications where a small amount of distortion in the target data is acceptable, such as digital audio and video.

Citation Download Citation

Dahua Xie and C.-C. Jay Kuo "Soft multimedia content authentication using the distance-preserving hash function", Proc. SPIE 5600, Multimedia Systems and Applications VII, (25 October 2004); https://doi.org/10.1117/12.571515

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available