As time and frequency distribution protocols are becoming increasingly common and widely deployed, concern about their exposure to various security threats is increasing. This document defines a set of security requirements for time protocols, focusing on the Precision Time Protocol (PTP) and the Network Time Protocol (NTP). This document also discusses the security impacts of time protocol pra...

Wireless Sensor Networks (WSNs) are used in many commercial, military, industrial, research and medical applications. Because of the limited resources of the sensor nodes in the wireless environment, these networks impose special security requirements besides to the security needs in traditional networks. This study presents the security problems in WSNs and discusses the security protocols bas...