Hash Chain Links Resynchronization Methods in Video Streaming Security Performance Comparison

TL;DR

This paper compares various hash chain resynchronization methods in video streaming, proposing a hybrid redundancy code technique and evaluating their performance in terms of delay and overhead.

Contribution

It introduces a hybrid resynchronization method using Redundancy Code and provides a comprehensive performance comparison with existing techniques.

Findings

Hybrid RC method reduces synchronization delay.

Performance varies with video use case and device capabilities.

Hybrid approach shows improved overhead efficiency.

Abstract

Hash chains provide a secure and light way of security to data authentication including two aspects: Data Integrity and Data Origin Authentication. The real challenge of using the hash chains is how it could recover the synchronization state and continue keeping the hash link in case of packet loss? Based on the packet loss tolerance and some accepted delay of video delivery which are representing the permitted tolerance for heavy loaded applications, we propose different mechanisms for such synchronization recovery. Each mechanism is suitable to use according to the video use case and the low capabilities of end devices. This paper proposes comparative results between them based on the status of each one and its overhead. Then, we propose a hybrid technique based Redundancy Code (RC). This hybrid algorithm is simulated and compared analytically against the other techniques (SHHC, TSP, MLHC and TSS). Moreover, a global performance evaluation in terms of delay and overhead is conducted for all techniques.