Granted Patent
Utility
US 4,731,843 · App. 06/814,677
Method and device of increasing the execution speed of cipher feedback mode of the DES by an arbitrary multiplier
Inventor:
Kurt Holmquist
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Dec 30, 1985
Inventor
Kurt Holmquist
Assignee (at issue)
PARADYNE CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.