Henry Carter

Co-authored papers

2017

• Phonion: Practical protection of metadata in telephony networks

  Proceedings on Privacy Enhancing Technologies

  Stephan Heuser, Bradley Reaves, Praveen Kumar Pendyala, Henry Carter, Alexandra Dmitrienko, William Enck, Negar Kiyavash, Ahmad-Reza Sadeghi, and Patrick Traynor

  DOI PDF

  Phonion routes traditional voice calls across multiple carriers to provide unlinkable communication with good voice quality.

2015

• Boxed Out: Blocking Cellular Interconnect Bypass Fraud at the Network Edge

  Proceedings of the USENIX Security Symposium

  Bradley Reaves, Ethan Shernan, Adam Bates, Henry Carter, and Patrick Traynor

  PDF

  Audio degradation signatures left by VoIP-to-GSM gateways enable network-edge detection of SIMbox interconnect bypass fraud, which costs operators over $2 billion annually.