Granted Patent
Utility
US 5,483,598 · App. 08/086,746
Message encryption using a hash function
Inventors:
Charles W. Kaufman, Radia J. Perlman
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Jul 1, 1993
Inventors
Charles W. Kaufman
Radia J. Perlman
Assignee (at issue)
Digital Equipment Corporation, Patent Law Group
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.