Abstract

In recent research, very large-scale integration (VLSI) design and its implementation plays a major role. It has been considered as compact and contains additional techniques. However, it undergoes security threats like differential power analysis (DPA) attacks, confidential information leakage, suspicious data insertion, brute force attacks, and other severe attacks. Hence, the cryptographic techniques that have been implemented to enhance the security level for VLSI devices is the focus of this survey. The symmetric cryptographic technique of advanced encryption standard (AES) is considered suitable for this security enhancement and it is an advanced encryption process, and so the intelligible data are transmitted in an unintelligible form to confuse the attackers and the data is securely transmitted without any interruption. Different techniques to implement the AES approaches in VLSI devices are analyzed. The dynamic S-box technique is also analyzed for key-dependent processes. The key-dependent S-box of block ciphers is more secure than a general fixed S-box. The strength of the cipher is increased by the usage of an S-box. A dynamic S-box, generated to be key-dependent and with a discrete logarithmic approach, enhanced the S-box nonlinearity. Several measures analyzed regarding security and complexity of nonlinear transformation of S-box improved. Hence, the AES algorithm with dynamic S-box makes the system dynamic, more nonlinear, and with an unbreakable architecture. In this review, it also identified that to implement nonlinear transformation in AES, an S-box component has been used. This survey has been provided as guidelines for VLSI architecture implementation in a more secure way with cryptographic algorithm of AES and a dynamic S-box.

摘要

在最近的研究中，超大规模集成 (VLSI) 设计及其实现起着重要作用。它被认为是紧凑的并包含其他技术。但是，它会受到差分功率分析（DPA）攻击、机密信息泄露、可疑数据插入、暴力破解等严重攻击等安全威胁。因此，为提高 VLSI 设备的安全级别而实施的加密技术是本次调查的重点。高级加密标准（AES）的对称密码技术被认为适合这种安全增强，它是一种高级加密过程，因此可理解的数据以不可理解的形式传输以迷惑攻击者，并且数据安全传输而不会中断. 分析了在 VLSI 器件中实现 AES 方法的不同技术。动态 S-box 技术也被分析为关键相关的过程。分组密码的密钥相关 S-box 比一般的固定 S-box 更安全。通过使用 S-box 增加了密码的强度。一个动态的 S-box，生成为依赖于键并采用离散对数方法，增强了 S-box 的非线性。对S盒非线性变换的安全性和复杂性分析的若干措施进行了改进。因此，具有动态 S-box 的 AES 算法使系统动态化、非线性化，并具有牢不可破的架构。在这篇综述中，它还发现为了在 AES 中实现非线性变换，使用了 S-box 组件。