Internet of Things (IoT) is a new concept in Information and Communications Technology and its structure is based on smart objects communications. It contributes to controlling, managing, and administrating devices through the Internet. IoT is emerging as a key component of the Internet and a vital infrastructure for millions of interconnected objects. Thus, the security of IoT is highly important. Scalable applications and services are vulnerable to various attacks and information leakage, demanding greater levels of security and privacy. For instance, hacking personal information is a challenge in this regard. The present study is an investigation of symmetric, asymmetric and hybrid encryption algorithms for IoT security. Asymmetric key encryption to ensure secure communication between multiple users and thereby avoiding distributing key on an insecure channel. All algorithms are compared based on security factors. Results indicate that Elliptic Curve Cryptography (ECC) has a better performance than other algorithms in the study. ECC to generate smaller, faster and reliable cryptography keys. Also, ECC decreases the memory requirements and the execution encryption/decryption time. This study helps to understand the importance of several security factors in IoT and advancements in cryptography algorithms.

物联网（IoT）是信息和通信技术中的一个新概念，其结构基于智能对象通信。它有助于通过Internet控制，管理和管理设备。物联网正在成为互联网的关键组成部分，并成为数百万个互连对象的重要基础架构。因此，物联网的安全性非常重要。可扩展的应用程序和服务容易受到各种攻击和信息泄漏的影响，要求更高级别的安全性和隐私性。例如，在这方面，黑客个人信息是一个挑战。本研究是针对物联网安全性的对称，非对称和混合加密算法的研究。非对称密钥加密可确保多个用户之间的安全通信，从而避免在不安全的信道上分发密钥。根据安全因素比较所有算法。结果表明，椭圆曲线密码术（ECC）具有比本研究中其他算法更好的性能。ECC生成更小，更快和更可靠的加密密钥。而且，ECC减少了内存需求和执行加密/解密时间。这项研究有助于了解物联网中几个安全因素的重要性以及加密算法的进步。ECC减少了内存需求和执行加密/解密时间。这项研究有助于了解物联网中几个安全因素的重要性以及加密算法的进步。ECC减少了内存需求和执行加密/解密时间。这项研究有助于了解物联网中几个安全因素的重要性以及加密算法的进步。