Advances in Cryptology – EUROCRYPT 2010

Volume 6110 of the series Lecture Notes in Computer Science pp 216-234

Efficient Device-Independent Quantum Key Distribution

  • Esther HänggiAffiliated withComputer Science Department, ETH Zurich
  • , Renato RennerAffiliated withInstitute for Theoretical Physics, ETH Zurich
  • , Stefan WolfAffiliated withComputer Science Department, ETH Zurich


An efficient protocol for quantum key distribution is proposed the security of which is entirely device-independent and not even based on the accuracy of quantum physics. A scheme of that type relies on the quantum-physical phenomenon of non-local correlations and on the assumption that no illegitimate information flows within and between Alice’s and Bob’s laboratories. The latter can be enforced via the non-signaling postulate of relativity if all measurements are carried out simultaneously enough.