Based on the following graph, describe the four-way handshake in IEEE 802.1X.802.11 AP802.11 StationMAC Address%3D5AMAC Address=DAA,Pairwise Master Key (PMK) IsKnown; Generate SNonce1. EAPOL-Key (ANonce)Pairwise Master Key (PMK) IsKnown; Generate ANonceDerive Pairwise Transient Key (PTK)using ANonce and SNonce2. EAPOL-Key (SNonce, MIC)Derive PTK using ANonce and SNonceSupply Group Transient Key (GTK)3. EAPOL-Key (MIC, Encrypted GTK)4. EAPOL-Key (MIC)Install PTK and GTKInstall PTKEncrypted data can now be sent / receivedPTK PRF-X (PMK,"Pairwise key expansion",Min(AA,SA) || Max(AA,SA)|| Min(ANonce,SNonce) || Max(ANonce,SNonce))

The 4-way handshake is the process of exchanging 4 messages between an access point (authenticator)…

Based on the following graph, describe the four-way handshake in IEEE 802.1X. 802.11 AP MAC Address=AA 802.11 Station MAC Address=SA Pairwise Master Key (PMK) Is Known; Generate ANonce Pairwise Master Key (PMK) Is Known; Generate SNonce 1. EAPOL-Key (ANonce) Derive Pairwise Transient Key (PTK) using ANonce and SNonce 2. EAPOL-Kev (SNonce. MIC) Derive PTK using ANonce and SNonce Supply Group Transient Key (GTK) 3. EAPOL-Key (MIC, Encrypted GTK) 4. EAPOL-Key (MIC) Install PTK and GTK Install PTK Encrypted data can now be sent / received PTK PRF-X (PMK,"Pairwise key expansion", Min(AA,SA) || Max(AA,SA) || Min(ANonce,SNonce) || Max(ANonce, SNonce))

Based on the following graph, describe the four-way handshake in IEEE 802.1X. 802.11 AP MAC Address=AA 802.11 Station MAC Address=SA Pairwise Master Key (PMK) Is Known; Generate ANonce Pairwise Master Key (PMK) Is Known; Generate SNonce 1. EAPOL-Key (ANonce) Derive Pairwise Transient Key (PTK) using ANonce and SNonce 2. EAPOL-Kev (SNonce. MIC) Derive PTK using ANonce and SNonce Supply Group Transient Key (GTK) 3. EAPOL-Key (MIC, Encrypted GTK) 4. EAPOL-Key (MIC) Install PTK and GTK Install PTK Encrypted data can now be sent / received PTK PRF-X (PMK,"Pairwise key expansion", Min(AA,SA) || Max(AA,SA) || Min(ANonce,SNonce) || Max(ANonce, SNonce))

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Based on the following graph, describe the four-way handshake in IEEE 802.1X.
802.11 AP
802.11 Station
MAC Address%3D5A
MAC Address=DAA,
Pairwise Master Key (PMK) Is
Known; Generate SNonce
1. EAPOL-Key (ANonce)
Pairwise Master Key (PMK) Is
Known; Generate ANonce
Derive Pairwise Transient Key (PTK)
using ANonce and SNonce
2. EAPOL-Key (SNonce, MIC)
Derive PTK using ANonce and SNonce
Supply Group Transient Key (GTK)
3. EAPOL-Key (MIC, Encrypted GTK)
4. EAPOL-Key (MIC)
Install PTK and GTK
Install PTK
Encrypted data can now be sent / received
PTK PRF-X (PMK,"Pairwise key expansion",
Min(AA,SA) || Max(AA,SA)|| Min(ANonce,SNonce) || Max(ANonce,SNonce))

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