Fecha de publicación: 07/12/2017 Fuente: Wipo "IOT" Disclosed are a method and an apparatus for providing a P2P data security service in an IoT environment. The method for providing a P2P data security service in an IoT environment according to the present invention is a method for providing a P2P data security service between devices in an IoT platform connected to multiple devices through a network, and comprises the steps of: authenticating a first device, using a certificate and a unique key of the first device; when the authenticating of the first device is completed, establishing a security channel through an exchange of end-to-end (E2E) session keys and assigning a group ID and a group key to the first device; and assigning the group ID and the group key to a second device requested by the first device.