文档介绍：公选课论文
学生姓名:
xxxxxxx
学号:
xxxxxxxxxxxxx
所在系部:
电气信息系
专业班级:
软件一班
日期:
二○一二年五月
数字签名技术在互联网安全中的作用
摘要
网络通信促进和加速社会信息化的发展,但是网络环境下的信息安全并不令人乐观,信息在传输的过程中出现了安全问题,信息可能被盗取并修改,给社会带来了麻烦。正是在这种情况下,数字签名技术便应运而生了。
数字签名(Digital Signature)技术是不对称加密算法的典型应用;数据发送方用自己的私钥对数据进行加密处理,完成对数据的合法“签名”,数据接收方则利用对方的公钥来解读收到的“数字签名”,并将解读结果用于对数据完整性的检验,以确认签名的合法性。本质上数字签名是个加密的过程,数字签名验证是个解密的过程。
随着社会科技的发展,普通的数字签名已经不能适应社会的需求。接踵而至的有人对数字签名提出了新方案,并将数字签名用到特殊的途径。本文将简单的介绍一下数字签名技术的发展,作用和实现原理。
关键词: 数字签名加密算法数据完整性私钥公钥(小4号宋体)
Abstract
munication to promote and accelerate the development of social informatization, the information security work environment is not optimistic, the information in the transmission process security issues, information may be stolen and modify, brought trouble. It is in this context, the digital signature technology will emerge as the times require.
Digital signature ( Digital Signature ) technology is a typical application of asymmetric encryption algorithm; the sender of data with its private key to encrypt the data processing, the data of the legitimate" signature", the data receiver is to use each other's public key to interpret received a "digital signature", and interpretation of results for data integrity verification, in order to confirm the validity of the signature. The essence of digital signature is an encryption process, digital signature verification is a decryption process.
With the development of science and technology, the ordinary digital signature has been unable to meet the demand of the society. Come one after another one to put forward a new scheme of digital signature and digital signature, use special ways. This paper will briefly introduce the digital signature technology development, function and Realization principle.
Keywords: Digital signature Encryption algorithm Data integrity Public and private key
1 引言
所谓"数字签名"就是通过某种密码运算生成一系列符号及代码组成电子密码进行签名,来代替书写签名或印章,对于这种电子式的签名还可进行技术验证,其验证的准确度是一般手工签名和图章的验证而无法比拟的。"数字签名"是目前电子商务、电子政务中应用最普遍、技术最成熟的、可操作性最强的一种电子签名