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Файл:4-1 Електрона комерція / IPsec_eng.ppt
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- •Chapter 13 IPsec
- •IPsec (IP Security)
- •Types of IPsec VPNs
- •LAN-to-LAN and Site-to-Site
- •Remote-Access IPsec
- •IPsec Protocol Suite
- •IKE’s Responsibilities
- •Composition of IKE
- •IPsec Tunnel Creation
- •IKE Main Mode, Aggressive
- •Goals of Main Mode and
- •Types of Negotiations by IKE
- •Goals of Quick Mode
- •IKE Main Mode Message 1
- •IKE Main Mode Message 2
- •Diffie-Hellman Algorithm
- •Diffie-Hellman Algorithm (cont.)
- •IKE Main Mode Message 3
- •IKE Main Mode Message 4
- •Session Keys Generated by the Initiator
- •Session Keys Generated
- •IKE Main Mode Message 5
- •IKE Main Mode Message 6
- •Completion of IKE Phase I (Main Mode) using Preshared Key
- •IKE Phase 2 (Quick Mode)
- •IKE Quick Mode Message 1
- •IKE and IPsec Lifetime
- •IKE Quick Mode Message 2
- •Generation of IPsec
- •IKE Quick Mode Message 3
- •Main Mode Using
- •Session Keys Generated
- •Session Keys Generated
- •IKE Main Mode Message 5
- •IKE Main Mode Message 6
- •Aggressive Mode of IKE Phase 1 using Preshared Key Authentication
- •IKE Aggressive Mode Message 1
- •IKE Aggressive Mode Message 2
- •IKE Aggressive Mode Message 3
- •IKE Device Authentication
- •Contents of a Digital Certificate
- •Using Digital Certificates
- •IKE Main Mode Using
- •Encryption Methods in IPsec
- •DES Encryption using
- •3DES Encryption
- •Integrity Checking Mechanism
- •Integrity Checking Using Hashes
- •Use of Hashes in ESP and AH
- •Packet Encapsulation in IPsec
- •Packet Format Using AH in
- •Packet Format Using ESP in
- •ESP Header Format
- •AH Header Format
- •IKE Enhancements for Remote-Access Client IPsec
- •Extended Authentication and
- •Negotiation of X-Auth During
- •Start of X-Auth with Exchange of Attribute Payloads Using ISAKMP Messages
- •Completion of X-Auth with Exchange of Attribute Payloads Using ISAKMP
- •Mode Configuration During
- •Exchanging Attribute Payloads Between
- •NAT Transparency
- •Tagging on a UDP Header to Traverse PAT
Packet Format Using AH in
Tunnel and Transport Modes
Packet Format Using ESP in
Tunnel and Transport Modes
ESP Header Format
AH Header Format
IKE Enhancements for Remote-Access Client IPsec
Extended Authentication and
Mode Config in IKE
Negotiation of X-Auth During
IKE Negotiation
Start of X-Auth with Exchange of Attribute Payloads Using ISAKMP Messages
Completion of X-Auth with Exchange of Attribute Payloads Using ISAKMP
Messages
Mode Configuration During
IKE Negotiation
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