Cryptography – Communication system using cryptography – Data stream/substitution enciphering
Reexamination Certificate
2006-02-28
2006-02-28
Revak, Christopher (Department: 2131)
Cryptography
Communication system using cryptography
Data stream/substitution enciphering
C380S277000
Reexamination Certificate
active
07006629
ABSTRACT:
A method and system for processing a data set. More particularly, the present invention provides a method and system for encrypting or decrypting a data set so that the data set remains entirely in the ASCII printable range. The method and system of the present invention allow a key of any length to be selected. Once selected, the key is formatted to the length of the data set and then masked so that predetermined bits are set to zero. An exclusively-OR result is then formed with the data set and the masked key to yield an encrypted data set.
REFERENCES:
patent: 4418425 (1983-11-01), Fennel, Jr. et al.
patent: 4558176 (1985-12-01), Arnold et al.
patent: 4776011 (1988-10-01), Busby
patent: 4984270 (1991-01-01), LaBounty
patent: 5003596 (1991-03-01), Wood
patent: 5124117 (1992-06-01), Tatebayashi et al.
patent: 5377270 (1994-12-01), Koopman, Jr. et al.
patent: 5512977 (1996-04-01), Imai
patent: 5764768 (1998-06-01), Spelman et al.
patent: 5768390 (1998-06-01), Coppersmith et al.
patent: 6141421 (2000-10-01), Takaragi et al.
patent: 6269164 (2001-07-01), Pires
Hoffman Warnick & D'Alessandro LLC
Revak Christopher
Steinberg William H.
LandOfFree
Method and system for processing a data set does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for processing a data set, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for processing a data set will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680824