Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1990-09-10
1992-03-31
Buczinski, Stephen C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
200 4301, 235 27, 34082534, 380 42, 380 43, 380 48, H04K 100, H04L 902, H01H 2710, G07D 700
Patent
active
051014300
ABSTRACT:
In this method, a number N is assigned to transmitted and receiving stations comprising synchronous clocks (2), the coded message being obtained by calculating a time Tie from the time elapsed since the initialization of the clock of the transmitting station, a code Ae1 from N and from Tie in accordance with a first relationship, a code Ae2 from Ae1 in accordance with a second relationship, and the coded message M from N, Tie and Ae2, in accordance with a third relationship. The validation operation is performed by calculating a time Tir1 from the time elapsed since the initialization of the clock of the receiving station, a code Ar1 from the received coded message M, from N and from Tir1, by using the third relationship, a code Ar2 from the n highest order bits of Ar1, n being the number of bits of Ae1, a code Ar3 from Ar2 in accordance with the second relationship, a time Tir2 from M, from N and from Ar3, by using the third relationship, and a code Ar4 from N and from Tir2 by using the first relationship, and by verifying that Ar2 is equal to Ar4 and that the absolute value of the difference Tir2-Tir1 is less than a specified threshold.
REFERENCES:
patent: 4317957 (1982-03-01), Sendrow
patent: 4509093 (1985-04-01), Stellberger
Buczinski Stephen C.
Rockwell International Corporation
LandOfFree
Method and device for generating and for validating a digital me 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 device for generating and for validating a digital me, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for generating and for validating a digital me will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2265066