Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2008-04-08
2008-04-08
Tran, Ellen (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S163000, C707S793000, C707S793000, C707S793000
Reexamination Certificate
active
07356701
ABSTRACT:
In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
REFERENCES:
patent: 4641274 (1987-02-01), Swank
patent: 4864616 (1989-09-01), Pond et al.
patent: RE34954 (1995-05-01), Haber et al.
patent: 5532920 (1996-07-01), Hartrick et al.
patent: 5579501 (1996-11-01), Lipton et al.
patent: 5594227 (1997-01-01), Deo
patent: 5765152 (1998-06-01), Erickson
patent: 5778395 (1998-07-01), Whiting et al.
patent: 5781901 (1998-07-01), Kuzma
patent: 5914938 (1999-06-01), Brady et al.
patent: 5915025 (1999-06-01), Taguchi et al.
patent: 5931947 (1999-08-01), Burns et al.
patent: 5940507 (1999-08-01), Cane et al.
patent: 5978791 (1999-11-01), Farber et al.
patent: 5990810 (1999-11-01), Williams
patent: 6041411 (2000-03-01), Wyatt
patent: 6052688 (2000-04-01), Thorsen
patent: 6122631 (2000-09-01), Berbec et al.
patent: 6148342 (2000-11-01), Ho
patent: 6205533 (2001-03-01), Margolus
patent: 6272492 (2001-08-01), Kay
patent: 6308325 (2001-10-01), Dobbek
patent: 6374266 (2002-04-01), Shnelyar
patent: 6415280 (2002-07-01), Farber et al.
patent: 6415302 (2002-07-01), Garthwaite et al.
patent: 6430618 (2002-08-01), Karger et al.
patent: 6526418 (2003-02-01), Midgley et al.
patent: 6532542 (2003-03-01), Thomlinson et al.
patent: 6535867 (2003-03-01), Waters
patent: 6549992 (2003-04-01), Armangau et al.
patent: 6557102 (2003-04-01), Wong et al.
patent: 6584466 (2003-06-01), Serbinis et al.
patent: 6601172 (2003-07-01), Epstein
patent: 2003/0028761 (2003-02-01), Platt
patent: 2003/0140051 (2003-07-01), Fujiwara et al.
patent: 0774715 (1997-05-01), None
patent: 1 049 988 (2002-09-01), None
patent: 1 049 989 (2003-05-01), None
patent: 99/09480 (1999-02-01), None
patent: WO 01/18633 (2001-03-01), None
patent: WO 01/61563 (2001-08-01), None
Kaliski, “PKCS #1: RSA Encryption,” Mar. 1998, The Internet Society, Request for Comments 2313, pp. 1-19, http://www.ietf.org/rfc/rfc2313.txt.
Berners-Lee et al., “Universal Document Identifiers,” available at http://www.webhistory.org/www-talk.1992/0032.html (Mar. 11, 1992).
Bowman et al., “Harvest: A Scalable, Customizable Discovery and Access System, ” Technical Report CU-CS-732-94, Dept. of Comp. Science, Univ. of Colorado (Aug. 1994).
Browne et al., “Location-Independent Naming for Virtual Distributed Software Repositories,”available at www.netlib.org/utk/papers/lefn/main.html (Nov. 11, 1994).
Crespo et al., “Archival Storage for Digital Libraries,” Procs. of the Third ACM Conf. on Digital Libraries, pp. 69-78 (ISBN: 0-89791-965-3) (1998).
Heckel, “A Technique for Isolating Differences Between Files, ” Communications of the ACM, vol. 21, No. 4 (Apr. 1978).
Kantor, FWKCS™ Contents—Signature System, Version 1.18 (Sep. 11, 1992).
Rabin, “Fingerprinting by Random Polynomials, ” Center for Research in Computing Technology, Harvard University, Technical Report TR-15-81 (1981).
Rivest, “The MD5 Message-Digest Algorithm,” Network Working Group, Request for Comments: 1321, MIT Lab. for Comp. Science and RSA Data Security , Inc. (Apr. 1992).
Sollins, “Functional Requirements for Uniform Resource Names,” Network Working Group, Request for Comments: 1737, MIT Lab. For Comp. Science (Dec. 1994).
Tridgell et al., The Rsync Algorithm, Jun. 18, 1996, Department of Computer Science Australian National University Canberra, pp. 1-6.
Williams, “An Introduction to Digest Algorithms,” available at ftp.rocksoft.com:/pub/rocksoft/., (Sep. 1994).
Chaum et al., “Utraceable Electronic Cash”, Advances in Cryptology CRYPTO '88, Springer-Verlag, pp. 319-327 (1998).
Feige et al., “Zero-Knowledge Proofs of Identity,” Journal of Cryptology 1:77-94 (1998).
Margolus, Crystalline Computation, Chapter 18 of Feynman and Computation (A. Hey., ed.), Perseus Books, pp. 267-305 (1999).
National Institute of Standards and Technology, NIST FIPS PUB 180-1, “Secure Hash Standard”, U.S. Department of Commerce (Apr. 1995).
Nowicki, “NFS: Network File System Protocol Specification” Network Working Group RFC 1094, Sun Microsystems, Inc. (Mar. 1989).
Preface from FWKCS(TM) Contents—Signature System, Version 2.05, Copyright Frederick W. Kantor (Apr. 26, 1996).
Rabin, “Efficient Dispersal of Information for Security,” Load Balancing, and Fault Tolerance, Journal of the ACM, vol. 36, No. 2, pp. 335-348 (Apr. 1989).
Rivest, “The MD4 Message Digest Algorithm,” Network Working Group RFC 1186, MIT Laboratory for Computer Scienece (Oct. 1990).
Karger et al., “Consistent Hashing and Random Trees: Distributed Caching Protocols for Relieving Hot Spots on the World Wide Web,” Laboratory for Computer Science and Department of Mathematics, MIT, Cambridge, MA.
Knight, Jr. Thomas F.
Margolus Norman H.
Pratt Gill A.
Burnside Acquisition, LLC
Fish & Richardson P.C.
Tran Ellen
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