Author(s): Adam Bates, Kevin Butler, Micah Sherr, Clay Shields, Patrick Traynor and Dan Wallach

Download: Paper (PDF)

Date: 7 Feb 2012

Document Type: Briefing Papers

Additional Documents: Slides

Associated Event: NDSS Symposium 2012


In many democratic countries, CALEA wiretaps are used by law enforcement agencies to perform investigations and gather evidence. This paper proposes a lightweight accountable wiretapping architecture for secure auditing of existing CALEA systems. Based on publicly available wiretap reporting statistics, we conservatively estimate that our architecture can support tamper-evident logging for the US’ ongoing CALEA wiretaps using three commodity PCs.