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重庆邮电大学学报(自然科学版) 2005
An improved digital watermarking scheme combining with PKC Keywords: watermarking,false,accusation,PKC,tamper,resistance,system Abstract: Digitalwatermarkingistheenablingtechnologytoproveownershiponsuchcopyrightedproductassoftware,documents,music,andvideo,monitortheusageofthem,andeventracethembacktotheuserwithembeddingofuniquebuyeridentification(ID)asapartofwatermarkintothem.Thisthreadofdetectionwilldeterusersfromreleasingunauthorizedcopies.Aproblemariseswhenthesellerisdishonesty,hehasachancetousethedigitalwatermarkingwiththebuyerIDmaliciouslyandmakethebuyerreceivefalseaccusation.Inthispaper,animproveddigitalwatermarkingschemeisintroducedtopreventfalseaccusationtoanhonestbuyer,whichiscombinedwiththeadvantageofPKC(publickeycertificate)sothatitfitstheonlinetransactionandhelpstorealizesecureecommerce.Inaddition,theextendedapplicationofthisschemeisdiscussed.
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