Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1994-01-18
1996-12-03
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 21, H04L 900, H04L 908
Patent
active
055816142
ABSTRACT:
Apparatus and methods are provided for encrypting and decrypting information having a header portion and a body portion. The decrypting method includes the steps of reading a current month from a clock, extracting an odd/even month indication from the header portion, generating a first key based on the current month if the odd/even indication is odd and the current month is odd or if the odd/even indication is even and the current month is even, otherwise generating the first key based on a month previous to the current month read from the clock if the odd/even indication is odd and the current month is even or if the odd/even indication is even and the current month is odd, and using the first key for decrypting the encrypted body portion to generate a decrypted body portion.
REFERENCES:
patent: Re29259 (1977-06-01), Sabsay
patent: 2875270 (1959-02-01), Wendt et al.
patent: 2977434 (1961-03-01), Shanahan
patent: 3504286 (1970-03-01), Jacobaeus
patent: 3659046 (1972-04-01), Angeleri et al.
patent: 3777053 (1973-12-01), Wittig et al.
patent: 3890461 (1975-06-01), Vogelman et al.
patent: 4012583 (1977-03-01), Kramer
patent: 4100575 (1978-07-01), Morio et al.
patent: 4205343 (1980-05-01), Barrett
patent: 4215366 (1980-07-01), Davidson
patent: 4337483 (1982-06-01), Guillou
patent: 4393404 (1983-07-01), Cox et al.
patent: 4405829 (1983-09-01), Rivest et al.
patent: 4425586 (1984-01-01), Miller
patent: 4488179 (1984-12-01), Kruger et al.
patent: 4494143 (1985-01-01), Lovick et al.
patent: 4516166 (1985-05-01), Tellone
patent: 4530048 (1985-07-01), Proper
patent: 4531021 (1985-07-01), Bluestein et al.
patent: 4595950 (1986-06-01), Lofberg
patent: 4600921 (1986-07-01), Thomas
patent: 4600989 (1986-07-01), Schwartz et al.
patent: 4636854 (1987-01-01), Crowther et al.
patent: 4663659 (1987-05-01), Blatter
patent: 4689022 (1987-08-01), Peers et al.
patent: 4694489 (1987-09-01), Frederiksen
patent: 4706121 (1987-11-01), Young
patent: 4736422 (1988-04-01), Mason
patent: 4748668 (1988-05-01), Shamir et al.
patent: 4796223 (1989-01-01), Sugita et al.
patent: 4802215 (1989-01-01), Mason
patent: 4803551 (1989-02-01), Park
patent: 4805020 (1989-02-01), Greenberg
patent: 4825467 (1989-04-01), Rist et al.
patent: 4829569 (1989-05-01), Seth-Smith et al.
patent: 4866770 (1989-09-01), Seth-Smith et al.
patent: 4890319 (1989-12-01), Seth-Smith et al.
patent: 4890321 (1989-12-01), Seth-Smith et al.
patent: 4903297 (1990-02-01), Rist et al.
patent: 4937866 (1990-06-01), Crowther et al.
patent: 4944006 (1990-07-01), Citta et al.
patent: 4985783 (1991-01-01), Falck
patent: 4993066 (1991-02-01), Jenkins
patent: 4995080 (1991-02-01), Bestler et al.
patent: 5023908 (1991-06-01), Weiss
patent: 5027288 (1991-06-01), Suzuki et al.
patent: 5034819 (1991-07-01), Tsukagoski
patent: 5081678 (1992-01-01), Kaufman et al.
patent: 5101508 (1992-03-01), Owaki
patent: 5144664 (1992-09-01), Esserman et al.
patent: 5146495 (1992-09-01), Son
patent: 5170252 (1992-12-01), Gear et al.
patent: 5172413 (1992-12-01), Bradley et al.
patent: 5222136 (1993-06-01), Rasmussen et al.
patent: 5321750 (1994-06-01), Nadan
patent: 5335277 (1994-08-01), Harvey et al.
patent: B14706121 (1993-12-01), Young
Japanese Patent Abstract, Publication No. 4-78065(A), Publication Date 1992, p. 1.
Japanese Patent Abstruct, Publication No. 61-288672(A), Publication Date 1986 p. 1.
Veith, Richard H. Televisions Teletext, Jan. 1, 1983, pp. 1-6, North-Holland; R. H. Veith, Television's Teletext pp. 9, 12, 17, 19, 32, 46, 136, 137, 139.
Mankovitz Roy J.
Ng Yee K.
Cangialosi Salvatore
Index Systems, Inc.
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