消息认证是保障通信双方能确认所接收信息的完整性与来源真实性的重要机制。 Message authentication is a critical mechanism that allows communicating parties to verify both the integrity and
一、 动物的注意力 动物需要在复杂环境下有效关注值得注意的点。 心理学框架：人类根据随意线索（主观）和不随意（客观）线索选择注意点。 当我们走进一个拥挤的街道时，四周有很多人、车、广告牌、商店等各式各样的东西。我们的视野很广，但并不是所有的信息都能同时被注意到。假设你正准备去某家餐厅吃饭，在这个场景
1. Introduction | 简介 RC4 is a widely used stream cipher designed by Ron Rivest in 1987. It operates by generating a pseudorandom keystream that is XOR
1. Introduction | 简介 Advanced Encryption Standard (AES) is a widely used symmetric encryption algorithm that provides high security and efficiency. AE
1. Introduction | 简介 Triple DES (3DES) is an extended version of the Data Encryption Standard (DES), designed to enhance security by applying the DES
1. Introduction | 简介 Simplified DES (SDES) is a simplified version of the Data Encryption Standard (DES), designed to help understand the DES encrypti
Introduction | 简介 Symmetric encryption is a widely used cryptographic technique where the same secret key is employed for both encryption and decrypti
一、非监督学习的定义 | The definition of unsupervised learning 非监督学习的核心思想是： 不依赖标签，仅通过输入数据本身的分布结构来发现潜在的规律、结构或模式。
