"数字签名与身份认证技术概述：保障信息安全的关键"

于发送方的消息无法进行否认 and authenticity of messages received by legitimate recipients can be verified. (2) The legitimate sender cannot deny the messages sent. (3) Besides the legitimate sender, no one can forge or tamper with the messages.3.2 Hash Function • Hash Function, One-way Hash Function • Base" In the digital world of network communication and e-commerce, it is easy to encounter problems like repudiation, forgery, impersonation, and tampering. These issues can be effectively addressed using digital signatures. A digital signature is primarily used for signing digital information to prevent forgery or tampering. 3.1 Overview • In network communication and e-commerce, problems such as repudiation, forgery, impersonation, and tampering can easily occur. (Digital Signature) can effectively solve these problems. A digital signature is primarily used for signing digital information to prevent forgery or tampering. 3.1 Overview • A secure authentication system should satisfy the following conditions: (1) Legitimate recipients can verify the legitimacy and integrity of the received messages. (2) Legitimate senders cannot deny the messages sent. (3) Besides legitimate senders, no one can forge or tamper with messages. 3.2 Hash Function • Hash Function, One-way Hash Function • Base".."