# Robust Node ID Assignment for Mobile P2P Networks

## TL;DR

This paper introduces PJ-Sec, a robust node ID assignment mechanism for mobile P2P networks that enhances security against adversarial attacks through collaborative ID generation and formal security analysis.

## Contribution

It proposes a novel collaborative node ID assignment method for mobile P2P networks, ensuring security and resistance to attacks.

## Key findings

- PJ-Sec resists common attack vectors in mobile P2P networks.
- Formal analysis confirms PJ-Sec's security properties.
- The mechanism facilitates secure peer joining in dynamic environments.

## Abstract

The advancement of portable mobile wireless devices such as smart-phones, PDA, etc., brought mobile peer-to-peer (P2P) as an extension of traditional P2P networks to provide efficient, low-cost communication among them in a cellular network. It is challenging to assign a unique identifier to each user, as an adversary can target to disrupt the P2P system, by carefully selecting user IDs or obtaining many pseudo-IDs. This work proposes a robust node-ID assignment mechanism for secure peer joining in mobile P2P system called PJ-Sec. PJ-Sec facilitates to generate nodeID for a joining peer by a collaborative effort of an existing peer (within the vicinity) and pre-selected vicinity head. PJ-Sec is formally analyzed using AVISPA model checker and found to be attack resistant.