Unconditional security at a low cost
Abstract
Description
By simulating four quantum key distribution (QKD) experiments and analyzing one decoy-state QKD experiment, we compare two data post-processing schemes based on security against individual attack by Lütkenhaus, and unconditional security analysis by Gottesman-Lo-Lütkenhaus-Preskill. Our results show that these two schemes yield close performances. Since the Holy Grail of QKD is its unconditional security, we conclude that one is better off considering unconditional security, rather than restricting to individual attacks.
Accepted by International Conference on Quantum Foundation and Technology: Frontier and Future 2006 (ICQFT'06)
Accepted by International Conference on Quantum Foundation and Technology: Frontier and Future 2006 (ICQFT'06)