EntityQ568494· pop 27· linked from 203 articlessingle sign-onSign in to saveproperty of access control whereby a single login is used to gain access to any of several related systemsConnectionsOpenIDEntityHTTP cookieConceptKerberosEntityidentity managementEntityChinaCountryFacebookConceptLinuxEntityMicrosoft WindowsEntityMicrosoftEntityInternational Standard Book NumberEntityWikiConceptQ698EntityAndroidEntityQ11368EntityWayback MachineEntitycensorshipEntitycryptographyEntitydigital object identifierEntityiOSEntityInternational Standard Serial NumberEntityCategoriesFederated identityPassword authentication