Localization　technology　in　wireless　sensor　networks　has　great　significance　for　theoretical　study　and　practical　applications.　However,　most　current　localization　schemes　have　failed　to　pay　enough　attention　to　security　issues.　In　this　paper,　we　propose　a　novel　secure　localization　algorithm　named　signcryption-based　secure　localization　scheme　(SSLS)　that　allows　sensors　to　ensure　the　confidentiality　and　integrity　of　their　location　information.　Analysis　shows　that　SSLS　can　enhance　the　security　and　robustness　of　localization　through　the　signcryption　mechanism　while　simulation　results　help　to　verify　the　performance　of　SSLS　in　that　distance　measurement　errors　can　be　limited　within　a　small　range.　(C)　2012　Published　by　Elsevier　B.V.　Selection　and/or　peer　review　under　responsibility　of　ICMPBE　International　Committee.