A Modern Method for Constructing the S-Box of Advanced Encryption Standard

• 作者: W. Eltayeb Ahmed
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: Advanced ENCRYPTION Standard S-BOX Extended Euclidean Algorithm GREATEST Common DIVISOR XOR Operation
• 年，卷（期）: 2019,（4）
• 页码范围: 234-244
• 页数: 11页
• 分类号: O1

摘要

The substitution table (S-Box) of Advanced Encryption Standard (AES) and its properties are key elements in cryptanalysis ciphering. We aim here to propose a straightforward method for the non-linear transformation of AES S-Box construction. The method reduces the steps needed to compute the multiplicative inverse, and computes the matrices multiplication used in this transformation, without a need to use the characteristic matrix, and the result is a modern method constructing the S-Box.