Information Security 11.1 IP Security Chapter 16 復大软件学院
1 Information Security 11.1 IP Security Chapter 16
Review Cryptography Authentication techniques PKL CA. cert 復大软件学院
2 Review • Cryptography • Authentication techniques • PKI, CA, cert
Review Cryptography Authentication techniques PKL CA. cert 系统安全 应用安全 网络安全 安全协议 安全的密码算法 復大软件学院
3 Review • Cryptography • Authentication techniques • PKI, CA, cert. 安全的密码算法 安全协议 系统安全 应用安全 网络安全
IP Security have a range of application specific security mechanisms eg. S/mime, Pgp, Kerberos, Ssl/hTtps however there are security concerns that cut across protocol layers would like security implemented by the network for all applications Q: If security mechanisms in app layer have implemented. Security is needed in network level? Or vice versa? 復大软件学院
4 IP Security • have a range of application specific security mechanisms – eg. S/MIME, PGP, Kerberos, SSL/HTTPS • however there are security concerns that cut across protocol layers • would like security implemented by the network for all applications • Q: If security mechanisms in app layer have implemented. Security is needed in network level? Or vice versa?
IPSec general IP Security mechanisms provides authentication confidentiality key management applicable to use over LANS, across public private WaNs, for the Internet 復大软件学院
5 IPSec • general IP Security mechanisms • provides – authentication – confidentiality – key management • applicable to use over LANs, across public & private WANs, & for the Internet