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This document summarizes a key management protocol for ad hoc networks. It discusses: 1) Ad hoc networks have no infrastructure and are decentralized, with all nodes as peers. 2) Key challenges include implementing network services and security without a centralized authority. 3) The presented NSAUKDP protocol uses 5 phases - initialization, route request, key setup, authentication, and communication - to securely distribute symmetric keys between nodes to enable encrypted communication.

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Key management in ad hoc networks Presenter : saleh abu rahmah Supervisor: Dr. iman almomani
Ad hoc network Is a wireless network. It is on flay with no Infrastructure, all nodes are peers. Ad hoc advantages - easy to deploy. - Many devices such as PDA, Mobile, Laptop can benefit such networks Challenges - implement the network services Layer wired Ad hoc Media Access CSMA/CD MACA MACAW Network Proactive protocols: DV (Rip), LS (OSPF). Reactive protocols: AODVP, DSR Transport TCP TCP over wireless - Security: it's not easy to implement a centralized CA. Any node can join the network.
RREQ RREQ AODV A B C D E F RREQ It is A reactive routing protocol used in ad hoc networks. What is the difference between the proactive and reactive routing Protocols?
Novel secure and authenticated key distribution protocol The NSAUKDP provide symmetric key distribution between the source and Destination, and any two adjacent nodes in the path. S A B D Ksd Ksa Kab Ksa Kab Kbd Ksd Ksb The protocol uses five phases 1- initialization 2- Route Request phase. 3- Key Setup phase. 4- Authentication phase. 5- Communication phase
The initialization phase The node have to register itself to a CA before being deployed in the Network as follow. A->T : IDA , KA+ T-> : [IPA ,KA+ ]KCA- ,KCA+
S A D Route Request key setup And authentication phase: HNS=H(NS ) PacketS=[IPS ,KCS- ]KS- ,KS+ SREQ=broadcast[IDD , IDS ,PacketS,HNS] B PacketA=,[PacketS, IPA ,KCA- ]KA- ,KA+ SREQ=broadcast[IDD , IDA ,PacketA,HNS] PacketB=,[PacketS, IPB ,KCB- ]KB- ,KB+ SREQ=broadcast[IDD , IDB ,PacketB,HNS] S A B KSD ,KBD PacketD=[KSD ]KS+ ,[KBD ]KB+ ,H[KSD :HNS] DREP=IDS,PacketD,H[KBD ] KAB PacketB=[KSD ]KS+ ,[KAB ]KA+ ,H[KSD :HNS] DREP=IDS,PacketB,H[KAB ] KAS PacketB=[KSD ]KS+ ,[KSA ]KS+ ,H[KSD :HNS] DREP=IDS,PacketA,H[KSA ]
S A B D Ksd Ksa Kab Kbd Ksd Kbd Kab Ksa Esa (Esd (M)) Dsa (cipher) Eab (Esd (M)) Dab (cipher) Ebd (Esd (M)) Dbd (Dsd (cipher)) Communication phase

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Pres

  • 1. Key management in ad hoc networks Presenter : saleh abu rahmah Supervisor: Dr. iman almomani
  • 2. Ad hoc network Is a wireless network. It is on flay with no Infrastructure, all nodes are peers. Ad hoc advantages - easy to deploy. - Many devices such as PDA, Mobile, Laptop can benefit such networks Challenges - implement the network services Layer wired Ad hoc Media Access CSMA/CD MACA MACAW Network Proactive protocols: DV (Rip), LS (OSPF). Reactive protocols: AODVP, DSR Transport TCP TCP over wireless - Security: it's not easy to implement a centralized CA. Any node can join the network.
  • 3. RREQ RREQ AODV A B C D E F RREQ It is A reactive routing protocol used in ad hoc networks. What is the difference between the proactive and reactive routing Protocols?
  • 4. Novel secure and authenticated key distribution protocol The NSAUKDP provide symmetric key distribution between the source and Destination, and any two adjacent nodes in the path. S A B D Ksd Ksa Kab Ksa Kab Kbd Ksd Ksb The protocol uses five phases 1- initialization 2- Route Request phase. 3- Key Setup phase. 4- Authentication phase. 5- Communication phase
  • 5. The initialization phase The node have to register itself to a CA before being deployed in the Network as follow. A->T : IDA , KA+ T-> : [IPA ,KA+ ]KCA- ,KCA+
  • 6. S A D Route Request key setup And authentication phase: HNS=H(NS ) PacketS=[IPS ,KCS- ]KS- ,KS+ SREQ=broadcast[IDD , IDS ,PacketS,HNS] B PacketA=,[PacketS, IPA ,KCA- ]KA- ,KA+ SREQ=broadcast[IDD , IDA ,PacketA,HNS] PacketB=,[PacketS, IPB ,KCB- ]KB- ,KB+ SREQ=broadcast[IDD , IDB ,PacketB,HNS] S A B KSD ,KBD PacketD=[KSD ]KS+ ,[KBD ]KB+ ,H[KSD :HNS] DREP=IDS,PacketD,H[KBD ] KAB PacketB=[KSD ]KS+ ,[KAB ]KA+ ,H[KSD :HNS] DREP=IDS,PacketB,H[KAB ] KAS PacketB=[KSD ]KS+ ,[KSA ]KS+ ,H[KSD :HNS] DREP=IDS,PacketA,H[KSA ]