A Proof of the Security of Quantum Key Distribution
arXiv:quant-ph/0511175
Abstract
We prove the security of theoretical quantum key distribution against the most general attacks which can be performed on the channel, by an eavesdropper who has unlimited computation abilities, and the full power allowed by the rules of classical and quantum physics. A key created that way can then be used to transmit secure messages such that their security is also unaffected in the future.
64 pages; Accepted for publication in J. of Cryptology; replaces quant-ph/9912053; short version appeared in STOC'2000 pages 715-724