Title :
Quantum key distribution technologies
Author_Institution :
Basic Res. Labs., NTT Corp., Kanagawa
Abstract :
Since it was noted that quantum computers could break public key cryptosystems based on number theory, extensive studies have been undertaken on quantum cryptography (QC), which offers unconditionally secure communication based on quantum mechanics. This paper describes QC technologies, introduces a typical and widely used QC protocol BB84 and then describes a recently proposed scheme called the differential-phase-shift protocol
Keywords :
differential phase shift keying; protocols; quantum computing; quantum cryptography; telecommunication security; QC protocol BB84; differential-phase-shift protocol; number theory; public key cryptosystems; quantum computers; quantum cryptography; quantum key distribution; quantum mechanics; secure communication; Cryptographic protocols; Interference; Polarization; Prototypes; Public key cryptography; Quantum computing; Quantum mechanics; Security; Telegraphy; Telephony; Quantum cryptography (QC); quantum key distribution (QKD); secure communication;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.876606
