Follow Me on Youtube Channel
zarigatongy

http://youtube.com/zarigatongy
PPP Challenge Handshake
Authentication Protocol
CHAP

http://www.youtube.com/zarigatongy
3 Way Handshake
Peer

Authenticator

1. Sends Challenge Message

2. Peer Sends value calculated using one way Hash
Functio...
Packet Format
Exactly
one
Challenge-Handshake
Authentication Protocol packet is encapsulated
in the Information field of a...
Packet Format :: Code
The Code field is one octet and identifies the
type of CHAP packet
challenge

Response Success

Fail...
Packet Format :: Identifier
Used in Matching Challenges and Responses

http://www.youtube.com/zarigatongy
Packet Flow :: Challenge

http://www.youtube.com/zarigatongy
Packet Flow :: Response

http://www.youtube.com/zarigatongy
Packet Flow :: Success

http://www.youtube.com/zarigatongy
More Protocol Tutorials
•
•
•
•
•
•
•
•

SSL Protocol Click here
DHCPv6 Protocol Click Here
CHAP Protocol Click Here
ISCSI...
Upcoming SlideShare
Loading in …5
×

PPP Challenge Handshake Authentication Protocol

120 views
88 views

Published on

PPP Challenge Handshake Authentication Protocol

Published in: Education, Technology, Design
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
120
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

PPP Challenge Handshake Authentication Protocol

  1. 1. Follow Me on Youtube Channel zarigatongy http://youtube.com/zarigatongy
  2. 2. PPP Challenge Handshake Authentication Protocol CHAP http://www.youtube.com/zarigatongy
  3. 3. 3 Way Handshake Peer Authenticator 1. Sends Challenge Message 2. Peer Sends value calculated using one way Hash Function 3 .The authenticator checks the response against its own calculation of the expected hash value. If the values match, the authentication is acknowledged; otherwise the connection SHOULD be terminated. 4. Perform Step 1 to 3 at Random Interval http://www.youtube.com/zarigatongy
  4. 4. Packet Format Exactly one Challenge-Handshake Authentication Protocol packet is encapsulated in the Information field of a PPP Data Link Layer frame where the protocol field indicates type hex c223 (Challenge-Handshake Authentication Protocol) http://www.youtube.com/zarigatongy
  5. 5. Packet Format :: Code The Code field is one octet and identifies the type of CHAP packet challenge Response Success Failure http://www.youtube.com/zarigatongy
  6. 6. Packet Format :: Identifier Used in Matching Challenges and Responses http://www.youtube.com/zarigatongy
  7. 7. Packet Flow :: Challenge http://www.youtube.com/zarigatongy
  8. 8. Packet Flow :: Response http://www.youtube.com/zarigatongy
  9. 9. Packet Flow :: Success http://www.youtube.com/zarigatongy
  10. 10. More Protocol Tutorials • • • • • • • • SSL Protocol Click here DHCPv6 Protocol Click Here CHAP Protocol Click Here ISCSI Protocol Tutorial Click Here BGP Tutorial Click Here RADIUS Protocol Click Here PPP Protocol Click Here PPPoE Protocol Click Here http://youtube.com/zarigatongy

×