Lightweight cryptography (LWC) is a compact and advancing cryptography protocol. Internet of Things (IoT) is a cutting edge technology which is developed for resource constrained devices for communicating and sharing of information among fellow devices over internet. IoT smart objects are smallest tiny devices and it has limited processing and storage capacities and that often runs on small, low power, battery. IoT devices have many issues and challenges due to inherent properties of IoT and one of the major challenges is security. Success of IoT depends on how smart devices countermeasure the different security attacks. There are many cryptographic algorithms with different services are exist. Each one has some unique properties as well as limitations or constraints. After studying these cryptographic algorithms, the authors decided to propose a new lightweight block cipher, PriPresent. Also, this paper depicts the comparison results of proposed cipher with existing cipher over different metrics.

轻量级加密（LWC）是一种紧凑且先进的加密协议。物联网（IoT）是一项最先进的技术，专门为资源受限的设备开发，用于通过Internet在其他设备之间进行通信和共享信息。物联网智能对象是最小的微型设备，并且处理和存储容量有限，并且通常使用小巧，低功耗的电池供电。物联网设备由于物联网的固有特性而面临许多问题和挑战，而主要挑战之一就是安全性。物联网的成功取决于智能设备如何应对各种安全攻击。存在许多具有不同服务的密码算法。每个人都有一些独特的属性以及限制或约束。在研究了这些密码算法之后，作者决定提议一种新的轻量级分组密码PriPresent。另外，本文还描述了所提出的密码与现有密码在不同度量上的比较结果。