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Volumn 68, Issue 21, 1992, Pages 3121-3124

Quantum cryptography using any two nonorthogonal states

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EID: 11944254075     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.68.3121     Document Type: Article
Times cited : (2792)

References (17)
  • 1
    • 84927398545 scopus 로고    scopus 로고
    • The classic ``one-time pad'' technique encrypts a message with absolute security as the bitwise exclusive-or ( XOR_) of the message with a random secret key of the same length. The resulting cryptogram conveys no information to an eavesdropper except for its length, but the original message can be recovered by again XOR_ing the secret key. The method's security depends on never reusing the key. If the same key is used for a second message, an eavesdropper can learn the XOR_ of the messages by taking the XOR_ of the cryptograms. For redundant messages such as English, this is often enough to reveal both messages.
  • 2
    • 0019572642 scopus 로고
    • show how to generate a key- and message-dependent ``authentication tag,'' analogous to a check sum, whose value cannot be predicted by anyone ignorant of the key, and which thus certifies that the accompanying message has not been altered in transit. Like one-time-pad encryption, authentication uses up key bits and renders them unfit for reuse.
    • (1981) J. Comput. Syst. Sci. , vol.22 , pp. 265
    • Wegman, M.N.1    Carter, J.L.2
  • 3
    • 84927398544 scopus 로고    scopus 로고
    • So-called public-key cryptosystems allow users to agree on a secret key solely through public messages, and are widely used for that purpose, but they provide only conditional security: By sufficient computational effort the eavesdropper can always break the system and learn the key.
  • 15
    • 84927398541 scopus 로고    scopus 로고
    • M. Shirasaki, A. Haus, and D. Liu Wong, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1987), paper No. THO1, have described a similar interferometer, consisting of two half-interferometers joined by a fiber.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.