Cryptography – Key management – Having particular key generator
Patent
1995-07-19
1998-11-03
Tu, Trinh L.
Cryptography
Key management
Having particular key generator
380 3, 380 23, 380 44, G06F 1214, G11B 2328, H04K 100
Patent
active
058322108
ABSTRACT:
A transmission unit transmits the identical transmitting information including a communication number information. A communication number counting unit increments the communication number information every time the identical transmitting information is transmitted, sets the communication number information which is greater than the incremented last communication number information to an initial communication number information when a renewed transmitting information is transmitted, and increments the initial communication number every time the renewed transmitting information is transmitted. An information discrimination unit discriminates whether or not a receiving transmission information conforms with a registration transmitting information. A communication number information comparison unit compares a receiving communication number information with a registration communication number information. A control unit adds a predetermined value to the receiving communication number information when the receiving transmission information conforms with the registration transmitting information and the received communication number information is greater than the registration communication number information.
REFERENCES:
patent: 4955049 (1990-09-01), Ghisler
patent: 5317636 (1994-05-01), Vizcaino
patent: 5450491 (1995-09-01), McNair
patent: 5506905 (1996-04-01), Markawski et al.
patent: 5557676 (1996-09-01), Naslund et al.
Akiyama Ryota
Tsuji Yoshikazu
Fujitsu Limited
Tu Trinh L.
LandOfFree
Device and method for controlling communication does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for controlling communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for controlling communication will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-700498