The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1987
Filed:
Jun. 17, 1985
Applicant:
Inventors:
Gordon Bremer, Clearwater, FL (US);
Thomas Armstrong, Clearwater, FL (US);
Kurt Holmquist, Largo, FL (US);
Richard K Smith, Seminole, FL (US);
Assignee:
Paradyne Corporation, Largo, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ; G07D / ; G08B / ;
U.S. Cl.
CPC ...
380-2 ; 34082534 ; 34082536 ; 380 24 ; 380 29 ;
Abstract
In a system in which data between a master and remote location is encrypted by using the DES algorithm, the status of security devices at the remote location is monitored from a centralized security station. A message indicative of the status of the security devices is used to generate an initializing vector (IV). This IV is then used to encrypt the data from the remote to the master.