High-Speed Prefix-Preserving IP Address Anonymization for Passive Measurement Systems

Free registration required

Executive Summary

Passive network measurement and packet header trace collection are vital tools for network operation and research. To protect a user's privacy, it is necessary to anonymize header fields, particularly IP addresses. To preserve the correlation between IP addresses, prefix-preserving anonymization has been proposed. The limitations of this approach for a highperformance measurement system are the need for complex cryptographic computations and potentially large amounts of memory. The authors propose a new prefix-preserving anonymization algorithm, Top-hash Subtree-replicated Anonymization (TSA), that features three novel improvements: precomputation, replicated subtrees, and top hashing.

  • Format: PDF
  • Size: 408.19 KB