34,518 research outputs found

    Repeatable classical one-time-pad crypto-system with quantum mechanics

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    Classical one-time-pad key can only be used once. We show in this Letter that with quantum mechanical information media classical one-time-pad key can be repeatedly used. We propose a specific realization using single photons. The reason why quantum mechanics can make the classical one-time-pad key repeatable is that quantum states can not be cloned and eavesdropping can be detected by the legitimate users. This represents a significant difference between classical cryptography and quantum cryptography and provides a new tool in designing quantum communication protocols and flexibility in practical applications. Note added: This work was submitted to PRL as LU9745 on 29 July 2004, and the decision was returned on 11 November 2004, which advised us to resubmit to some specialized journal, probably, PRA, after revision. We publish it here in memory of Prof. Fu-Guo Deng (1975.11.12-2019.1.18), from Beijing Normal University, who died on Jan 18, 2019 after two years heroic fight with pancreatic cancer. In this work, we designed a protocol to repeatedly use a classical one-time-pad key to transmit ciphertext using single photon states. The essential idea was proposed in November 1982, by Charles H. Bennett, Gilles Brassard, Seth Breidbart, which was rejected by Fifteenth Annual ACM Symposium on Theory of Computing, and remained unpublished until 2014, when they published the article, Quantum Cryptography II: How to re-use a one-time pad safely even if P=NP, Natural Computing (2014) 13:453-458, DOI 10.1007/s11047-014-9453-6. We worked out this idea independently. This work has not been published, and was in cooperated into quant-ph 706.3791 (Kai Wen, Fu Guo Deng, Gui Lu Long, Secure Reusable Base-String in Quantum Key Distribution), and quant-ph 0711.1642 (Kai Wen, Fu-Guo Deng, Gui Lu Long, Reusable Vernam Cipher with Quantum Media).Comment: It was submitted to PRL in 2004. We designed a protocol to use repeatedly a one-time-pad to transmit ciphertext using single photons. The idea was proposed by Bennett, Brassard, Breidbart in 1982. Unknowing their work, we rediscovered this idea independently. We publish it here in memory of Prof. Fu-Guo Deng (1975.11.12-2019.1.18), who died after two years heroic fight with pancreatic cance

    Perbedaan Sikap antara Li Ping dan Bao Xiruo

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    Skripsi ini menganalisi sebuah novel berjudul Pendekar Pemanah Rajawali karangan Jin Yong. Di dalam novel ini terdapat dua orang tokoh pembantu yang sangat mempengaruhi kedua tokoh utama dalam novel, yaitu Li Ping dan Bao Xiruo. Li Ping adalah ibu dari Guo Jing, sedangkan Bao Xiruo adalah ibu dari Yang Kang. Tujuan dari penulisan ini adalah untuk mengetahui perbedaan pengajaran antara Li Ping, ibu dari Guo Jing dan Bao Xiruo, ibu dari Yang Kang. Studi ini menggunakan teori penokohan yang diterapkan dalam tokoh Li Ping dan Bao Xiruo untuk mempelajari lebih lanjut sikap-sikap yang mereka miliki, teori konflik juga ditujukan dalam tokoh Li Ping dan Bao Xiruo untuk lebih memahami sikap yang mereka miliki

    Guo Poem

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    Guo Poem was created in response to an assigned design problem called Art (Wear) Off the Wall. The purpose was to develop a design that transitions from a wall art piece to a 3D wearable. My original inspiration for surface design was from the Metropolitan Museum exhibition, China: Through the Looking Glass, which included artifacts with Chinese elements. Addition research included other examples of Chinese calligraphy on cloth. I realized that Chinese characters have many different styles and some characters have a shape that might fit on the body. The character Guo in the Zhuan style was selected for the shape, as it could allow openings for the arms to go through. A black cotton and spandex fabric and gold paint were chosen to create the effect of a seal cutting on stone tablet which is another traditional format of Chinese calligraphy

    Student Chamber Music Concert, October 24, 1989

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    This is the concert program of Student Chamber Music Concert performance on Tuesday, October 24, 1989 at 8:30 p.m., at the Boston University Concert Hall, 855 Commonwealth Avenue, Boston, Massachusetts. Works performed were Quintet in A Major, "Die Forelle", D. 667 by Franz Schubert, Jazz Quartet by Claude Bolling, Achieved is a Glorious Work from "The Creation" by Joseph Haydn, Quartet for Tubas by Frank Lynn Payne, Quartet in D minor, "Der Tod und das Mädchen", D. 810 by Franz Schubert, Clarinet Quintet, Op. 115 by Johannes Brahms, Quintet No. 3 by Victor Ewald, and Sarabande by Claude Debussy. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Student Chamber Music Concert, October 24, 1989

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    This is the concert program of Student Chamber Music Concert performance on Tuesday, October 24, 1989 at 8:30 p.m., at the Boston University Concert Hall, 855 Commonwealth Avenue, Boston, Massachusetts. Works performed were Quintet in A Major, "Die Forelle", D. 667 by Franz Schubert, Jazz Quartet by Claude Bolling, Achieved is a Glorious Work from "The Creation" by Joseph Haydn, Quartet for Tubas by Frank Lynn Payne, Quartet in D minor, "Der Tod und das Mädchen", D. 810 by Franz Schubert, Clarinet Quintet, Op. 115 by Johannes Brahms, Quintet No. 3 by Victor Ewald, and Sarabande by Claude Debussy. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund
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