:..,,,;ithasmainlyappliedintheidentityrecognition,dataintegrity,,somenewsignaturetypeshadbeenproposed,suchasthethresholdsignature,blindsignature,proxysignature,identitybasedsignature,groupsignature,;,theredoesnotneedtheringadministrator,’,ringsignaturehasaspecialstatusintheprivacyprotection,ithasbeenwidelyappliedinthesystemofthee-government,e-voting,e-auction,:,itrequiresthehashfunctionsaretherealrandomhashfunction,however,,;,,ourstudyfocusesontheringsignatureinthestandardmodel,andweobtainedthefollowingresearchresults:
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