Ensuring　data　integrity　and　confidentiality　is　critical　in　communication　systems.　Traditional　methods,　such　as　separate　encryption　and　signature　schemes,　often　lead　to　inefficiencies.　While　signcryption　methods　address　both　needs　simultaneously,　they　are　inadequate　for　data　outsourcing　systems　like　cloud　computing　due　to　the　requirement　for　original　files　during　data　verification.　Conversely,　remote　data　integrity　checking　(RDIC)　methods　eliminate　the　need　for　original　files　but　lack　confidentiality.　This　article　fills　the　gap　in　cloud　security　by　introducing　remote　signcryption　(RSC)　and　presenting　the　first　concrete　RSC　scheme.　We　demonstrate　the　application　of　this　novel　approach　in　cloud-assisted　Internet　of　Things　(IoT)　networks.　Our　work　includes　defining　the　security　for　an　RSC　scheme　and　proving　its　security　under　the　bilinear　Diffie-Hellman　(BDH)　hardness　assumption.　Implementing　our　proposed　scheme　on　real　data　from　trending　YouTube　video　statistics,　we　found　that　RSC　significantly　outperforms　existing　methods,　achieving　100　times　faster　speed　and　reducing　communication　costs　by　half　compared　to　RDIC　methods.　Notably,　even　with　5　MB　of　outsourced　data,　RSC　keeps　the　communication　cost　under　8　kB　during　data　recovery,　a　substantial　improvement　over　classical　signcryption　methods　that　require　over　5　MB.