复旦大学：《信息安全》教学课件_14 防火墙 Firewall

复旦大学：《信息安全》教学课件_12-13 Software Security

• Cryptography • Authentication techniques • PKI

• Cryptography • Authentication techniques • PKI, CA, cert

• Definitions • Passwords – Unix Passwords – One time passwords • Challenge-response techniques – Basic protocol constructions – Also “one-time” • Authentication Involving TTP – Needham-Schroeder – Kerberos

• Definitions • Passwords – Unix Passwords – One time passwords • Challenge-response techniques

• What is “Information Security” • A brief history of Info sec • Threats、Attacks and Defenses

• Symmetric Cryptography • Asymmetric Cryptography

• Principles of Public-Key Cryptosystems • The RSA Algorithm

复旦大学：《信息安全》教学课件_03 Modern Block Ciphers