H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/70
H04L 9/22 (2006.01)
Patent
CA 1189925
INVENTORS: HANS BALDINGER and PETER HARTMANN INVENTION: METHOD AND APPARATUS FOR FORMING SECRET CODES ABSTRACT OF THE DISCLOSURE During the secret data transmission the problem exists of transmission of keys between the subscribers with- out utilizing the same enciphered transmission system. To generate a new key from the momentarily existing key by means of the existing ciphering equipment, however while incorporating at least one additional element, there is employed the point in time when the new key is produced to- gether with the existing key. This time point can be agreed upon between the subscribers ahead of time or by means of an enciphered tranmission path. At each station of a key signal generator there is removed a pseudo-random signal and infed by means of a gate to a key storage or memory. The gate is released or rendered conductive, starting from an externally determined point in time, for a number of bits which at least correspond to the capacity of the key storage.
361831
Baldinger Hans
Hartmann Peter
Johnson & Hicks
Patelhold Patentverwertungs- & Elektro-Holding Ag
LandOfFree
Method and apparatus for forming secret codes 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 apparatus for forming secret codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for forming secret codes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1238735