A new soft decision tracing algorithm for binary fingerprinting codes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The performance of fingerprinting codes has been studied under the well-known marking assumption. In a realistic environment, however, a pirated copy will be distorted by an additional attack. Under the assumption that the distortion is modeled as AWGN, a soft decision method for a tracing algorithm has been proposed and the traceability has been experimentally evaluated. However, the previous soft decision method works directly with a received signal without considering the communication theory. In this study, we calculate the likelihood of received signal considering a posterior probability, and propose a soft decision tracing algorithm considering the characteristic of Gaussian channel. For the estimation of channel, we employ the expectation-maximization algorithm by giving constraints under the possible collusion strategies. We also propose an equalizer to give a proper weighting parameter for calculating a correlation score.

Original languageEnglish
Title of host publicationAdvances in Information and Computer Security - 6th International Workshop, IWSEC 2011, Proceedings
Pages1-15
Number of pages15
Volume7038 LNCS
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event6th International Workshop on Security, IWSEC 2011 - Tokyo, Japan
Duration: Nov 8 2011Nov 10 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7038 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other6th International Workshop on Security, IWSEC 2011
CountryJapan
CityTokyo
Period11/8/1111/10/11

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ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Kuribayashi, M. (2011). A new soft decision tracing algorithm for binary fingerprinting codes. In Advances in Information and Computer Security - 6th International Workshop, IWSEC 2011, Proceedings (Vol. 7038 LNCS, pp. 1-15). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7038 LNCS). https://doi.org/10.1007/978-3-642-25141-2_1