... nd1748196857210675091509141182522307169712cdletterlencrypt:decrypt:8: Network Security 8-1 Chapter 8: Network Security Chapter goals:❒ understand principles of network security: ❍ cryptography and its many uses beyond“confidentiality”❍ ... authentication❍ message integrity❍ key distribution❒ security in practice:❍ firewalls❍ security in application, transport, network, linklayers8: Network Security 8-20RSA: Why is thatm = (m mod ... private keyfirst, followedby public keyResult is the same!8: Network Security 8-22 Chapter 8 roadmap8.1 What is network security? 8.2 Principles of cryptography8.3 Authentication8.4 Integrity8.5...