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SUMMARY:Using inaudible high-frequency sound to verify device proximity - 
 John Moore
DTSTART:20170919T121500Z
DTEND:20170919T124500Z
UID:TALK83081@talks.cam.ac.uk
CONTACT:Gemma Gordon
DESCRIPTION:Authenticating physical presence in a transaction or exchange 
 of data using NFC is well supported between smart-phone and static hardwar
 e such as a Point of Sale (POS) terminal. The same interaction between two
  smart-phones is more cumbersome due to the placement of the RFID chip wit
 hin phones. Furthermore\, Apple have restricted developer access to the NF
 C capability shipped within their phones. In this brief talk I will introd
 uce the technology used in an app called nibble.io which uses inaudible hi
 gh-frequency sound to verify device proximity.
LOCATION:Computer Laboratory\, William Gates Building\, Room FW11
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