密码学基础09-10 Authentication 身份认证 復大辱软件学院
1 密码学基础 09-10 Authentication －身份认证
内容间的联系 应用密码学基础 密码学 基本理论成熟 密码解决方案 应用相当广泛 PK、数字证书 身份认证、安全协议等 復大辱软件学院
2 内容间的联系 密码学 基本理论-成熟 应用密码学基础 密码解决方案 应用相当广泛 PKI、数字证书； 身份认证、安全协议等
Outline of talk · Definitions Passwords Unix Passwords One time passwords Challenge-response techniques 復大辱软件学院
3 Outline of Talk • Definitions • Passwords – Unix Passwords – One time passwords • Challenge-response techniques
Definitions Authentication a claimant tries to show a verifier that the claimant is as declared identification Different from message authentication which enables the recipient to verify that messages have not been tampered with in transit data integrity) and that they originate from the expected sender(authenticity) 復大辱软件学院
4 Definitions Authentication: • A claimant tries to show a verifier that the claimant is as declared – identification • Different from message authentication – which enables the recipient to verify that messages have not been tampered with in transit (data integrity) and that they originate from the expected sender (authenticity)
Definitions Authentication ·消息认证/报文的鉴别 身份认证 Message authentication has no timeliness Entity authentication happens in real time 双向和单向认证 復大辱软件学院
5 Definitions Authentication • 消息认证/报文的鉴别 • 身份认证 – Message authentication has no timeliness – Entity authentication happens in real time • 双向和单向认证