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SUMMARY:Relativity\, Quantum Theory and Cryptography - Professor Adrian Ke
 nt\, Department of Applied Mathematics and Theoretical Physics\, Universit
 y of Cambridge
DTSTART:20180601T164500Z
DTEND:20180601T181000Z
UID:TALK102154@talks.cam.ac.uk
CONTACT:Benjamin Pingault
DESCRIPTION:The goal of cryptography is to control access to information. 
 For example\, we may want a secret message to be readable by allies but no
 t by adversaries\, or an encrypted prediction to be unveiled only if we ch
 oose to supply a key.\n\nIn recent decades\, we learned how to use fundame
 ntal physical laws to guarantee cryptographic security.  Quantum cryptogra
 phy exploits the\ndistinctive properties of information encoded in quantum
  systems\, such\nas atoms or weak light pulses.  Relativistic cryptography
  uses the fact that information cannot be sent faster than light speed.\n\
 nI will show how some simple but perfectly secure cryptosystems can be bui
 lt using these principles and describe the current state of the art of phy
 sics-based cryptography.
LOCATION:Wolfson College\, Gatsby Room
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