Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Reexamination Certificate
2005-09-20
2005-09-20
Morse, Gregory (Department: 2134)
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
C380S045000, C380S044000, C380S043000, C380S281000
Reexamination Certificate
active
06947556
ABSTRACT:
Methods, systems and computer program products are provided which provide for controlling access to digital data in a file by encrypting the data with a first key, encrypting the first key with a second personal key generated from a password/passphrase associated with the file and further encrypting the encrypted first key with a control key which is managed by the system. In certain embodiments, user authentication may also be provided by issuing a ticket which is utilized to create, access and administer the files in the system.
REFERENCES:
patent: 4238854 (1980-12-01), Ehrsam et al.
patent: 4757533 (1988-07-01), Allen et al.
patent: 5150407 (1992-09-01), Chan
patent: 5235641 (1993-08-01), Nozawa et al.
patent: 5495533 (1996-02-01), Linehan et al.
patent: 5499298 (1996-03-01), Narasimhalu et al.
patent: 5563946 (1996-10-01), Cooper et al.
patent: 5638448 (1997-06-01), Nguyen
patent: 5699428 (1997-12-01), McDonnal et al.
patent: 5719941 (1998-02-01), Swift et al.
patent: 5734819 (1998-03-01), Lewis
patent: 5751814 (1998-05-01), Kafri
patent: 5787169 (1998-07-01), Eldridge et al.
patent: 5805712 (1998-09-01), Davis
patent: 5841871 (1998-11-01), Pinkas
patent: 5995624 (1999-11-01), Fielder et al.
patent: 6011847 (2000-01-01), Follendore, III
patent: 6023506 (2000-02-01), Ote et al.
patent: 6105131 (2000-08-01), Carroll
patent: 6678731 (2004-01-01), Howard et al.
Konheim, Allen G. “Cryptography, A Primer,” pp. 348-363 (1981).
Steiner et al.Kerberos: An Authentication Service For Open Network Systems, Jan. 12, 1988.
Schneier, Bruce,Applied Cryptography: Protocols, Algorithms, and Source Code in C, pp. 51-55 and 417-425 (Dec. 1995).
Matyas, Jr. Stephen Michael
Peyravian Mohammad
Roginsky Allen Leonid
Zunic Nevenko
Morse Gregory
Myers Bigel & Sibley & Sajovec
Tran Ellen C
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