Title
A Perceptual Audio Hashing Algorithm: A Tool for Robust Audio Identification and Information Hiding
Abstract
Assuming that watermarking is feasible (say, against a limited set of attacks of significant interest), current methods use a secret key to generate and embed a watermark. However, if the same key is used to watermark different items, then each instance may leak partial information and it is possible that one may extract the whole secret from a collection of watermarked items. Thus it will be ideal to derive content dependent keys, using a perceptual hashing algorithm (with its own secret key) that is resistant to small changes and otherwise having randomness and unpredictability properties analogous to cryptographic MACs.The techniques here are also useful for synchronizing in streams to find fixed locations against insertion and deletion attacks. Say, one may watermark a frame in a stream and can synchronize oneself to that frame using keyed perceptual hash and a known value for that frame. Our techniques can be used for identification of audio clips as well as database lookups in a way resistant to formatting and compression. We propose a novel audio hashing algorithm to be used for audio watermarking applications, that uses signal processing and traditional algorithmic analysis (against an adversary).
Year
DOI
Venue
2001
10.1007/3-540-45496-9_5
Information Hiding
Keywords
Field
DocType
keyed perceptual hash,audio watermarking application,information hiding,database lookups,content dependent key,own secret key,audio clip,secret key,novel audio,whole secret,perceptual audio hashing algorithm,robust audio identification,current method,signal processing
Digital watermarking,Computer science,Cryptography,Information hiding,Watermark,Speech recognition,Theoretical computer science,Hash function,Disk formatting,Perceptual hashing,Audio watermark
Conference
ISBN
Citations 
PageRank 
3-540-42733-3
51
4.96
References 
Authors
4
2
Name
Order
Citations
PageRank
Mehmet Kivanç Mihçak126523.84
Ramarathnam Venkatesan21326111.13