1 / 7

Securing Communication with Directory Services and Ring Establishment in Peer Networks

This document outlines the process of Alice registering in a directory service using her public key (PKey) to establish a secure communication framework. The service manages user connections via a once-per-user policy, ensuring trust either through the directory or user certificates. It details how Alice sends a message (M1) to node I1, which is decrypted and routed through subsequent nodes while establishing rules for message handling, ultimately facilitating a secure rendezvous with Bob. This framework underscores the importance of trust and security in decentralized networks.

toya
Télécharger la présentation

Securing Communication with Directory Services and Ring Establishment in Peer Networks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Alice registers herself in the directory service. • Under the key: H(Alice’s IP) • H(IP)  IP , Alice’s PKey • The directory service stores her for others nodes to use her under a relay • A once-per user policy is enforced • Either the directory service is trusted or each user also has some kind of certificate (or something) • You probably need to trust someone…. Bootup

  2. Looking up random Nodes

  3. Looking up random Nodes…

  4. Alice sends message M1 to I1 • I1 decrypts M1 with its PK • Inside M1, the message M2 is included Ring Establishment Messages • M1 establishes a rule on I1 • Whatever I give you from now on, try and decrypt with SK1 • See if there is something for you in the message and forward rest to I2 • Else forward to I2

  5. Alice has built her (blue) ring

  6. In node “In” a rule is established: • If you receive something from an outsider, forward in the ring Entry Point

  7. Alice and Bob share a secret: RAB • Bob will use H(Alice, RAB) to lookup Alice • Alice needs a way to inform Bob of her in-proxy, “In” Enter The Rendezvous Service Rendezvousing

More Related