Optimal equivocation in secrecy systems a special case of distortion-based characterization

Paul Cuff

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations


Recent work characterizing the optimal performance of secrecy systems has made use of a distortionlike metric for partial secrecy as a replacement for the more traditional metric of equivocation. In this work we use the log-loss function to show that the optimal performance limits characterized by equivocation are, in fact, special cases of distortion-based counterparts. This observation illuminates why equivocation doesn't tell the whole story of secrecy. It also justifies the causal-disclosure framework for secrecy (past source symbols and actions revealed to the eavesdropper).

Original languageEnglish (US)
Number of pages3
StatePublished - 2013
Event2013 Information Theory and Applications Workshop, ITA 2013 - San Diego, CA, United States
Duration: Feb 10 2013Feb 15 2013


Other2013 Information Theory and Applications Workshop, ITA 2013
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Information Systems

Cite this