Citation

Goh,, A and Poh, , GS and Ngo,, DCL (2003) Loss-tolerant stream authentication via configurable integration of one-time signatures and hash-graphs. COMMUNICATIONS AND MULTIMEDIA SECURITY , 2828 . pp. 239-251. ISSN 0302-9743

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Abstract

We present a stream authentication framework featuring preemptive one-time signatures and reactive hash-graphs, thereby enabling simultaneous realisation of near-online performance and packet-loss tolerance. Stream authentication is executed on packet aggregations at three levels ie: (1) GM chaining of packets within groups, (2) WL star connectivity of GM authenticator nodes within meta-groups, and (3) signature m-chaining between meta-groups. The proposed framework leverages the most attractive functional attributes of the constituent mechanisms ie: (1) immediate verifiability of one-time signatures and WL star nodes, (2) robust loss-tolerance of WL stars, and (3) efficient loss-tolerance of GM chains; while compensating for various structural characteristics ie: (1) high overhead of one-time signatures and WL stars, and (2) loss-intolerance of the GM chain authenticators. The resultant scheme can be operated in various configurations based on: (1) ratio of GM chain to WL star occurence, (2) frequency of one-time signature affixation, and (3) redundancy and spacing of signature-chain.

Item Type:	Article
Subjects:	Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions:	Faculty of Information Science and Technology (FIST)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	24 Aug 2011 01:36
Last Modified:	24 Aug 2011 01:36
URII:	http://shdl.mmu.edu.my/id/eprint/2614

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