Fingerprinting: Bounding Soft-Error-Detection Latency and Bandwidth

  • Authors:
  • Jared C. Smolens;Brian T. Gold;Jangwoo Kim;Babak Falsafi;James C. Hoe;Andreas G. Nowatzyk

  • Affiliations:
  • Carnegie Mellon University;Carnegie Mellon University;Carnegie Mellon University;Carnegie Mellon University;Carnegie Mellon University;Carnegie Mellon University

  • Venue:
  • IEEE Micro
  • Year:
  • 2004

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Abstract

Fingerprinting summarizes the history of internal processor state updates into a cryptographic signature. The processors in a dual modular redundant pair periodically exchange and compare fingerprints to corroborate each other's correctness. relative to other techniques, fingerprinting offers superior error coverage and significantly reduces the error-detection latency and bandwidth.