简介：Inubiquitouscomputing,datashouldbeabletobeaccessedfromanylocation,andthecorrectnessofdatabecomesvitalduringthecommunication.Supposethatmanyuserssigndifferentmessagesrespectively,beforeforwardingorsendingthesemessages,thentheverifiermustspendalotofcomputingtimetoverifytheirsignatures.Consequently,theaggregatesignatureschemeisaneffectivemethodofimprovingefficiencyinthiskindofsystems,whichprovidestheconveniencefortheverifier.Inthispaper,weproposeanewcertificatelessaggregatesignatureschemewhichisefficientingeneratingasignatureandverification.ThisschemeisprovablysecureundertheextendedcomputationalDiffie-Hellmanassumption.
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