Format

Send to

Choose Destination
Phys Rev Lett. 2000 Jul 10;85(2):441-4.

Simple proof of security of the BB84 quantum key distribution protocol

Author information

1
AT&T Labs Research, Florham Park, New Jersey 07932, USA.

Abstract

We prove that the 1984 protocol of Bennett and Brassard (BB84) for quantum key distribution is secure. We first give a key distribution protocol based on entanglement purification, which can be proven secure using methods from Lo and Chau's proof of security for a similar protocol. We then show that the security of this protocol implies the security of BB84. The entanglement purification based protocol uses Calderbank-Shor-Steane codes, and properties of these codes are used to remove the use of quantum computation from the Lo-Chau protocol.

PMID:
10991303
DOI:
10.1103/PhysRevLett.85.441

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center