Cryptography – Particular algorithmic function encoding – Public key
Patent
1992-09-30
1994-09-27
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
Public key
380 28, H04L 928, H04L 930
Patent
active
053512987
ABSTRACT:
A public key cryptographic system uses Lucas functions as the basis for encoding and decoding messages. An encoding device and a decoding device are linked by a communication channel. The first device is able to be actuated by some message to be transmitted, M, as well as an encryption key, E, so as to form a cryptogram, C, so that C can be sent over the communication channel to a decoding device. The encryption key, E, is a pair of positive whole numbers, e and N, which match the decryption key, D, of the second decoding device. The message M must usually be broken down into blocks, M.sub.i, such that each is greater than or equal to zero and less than or equal to N-1. N is a composite number--i.e. it is made up of at least two prime numbers, p and q, such that N=p.multidot.q. The cryptographic transformation done by the encoding device can be described using the notation of Lucas functions. It is, for each ith block of message M which produces a matching ith block of the cryptogram C:
REFERENCES:
patent: 4218582 (1980-08-01), Hellman et al.
patent: 4731841 (1988-03-01), Rosen et al.
patent: 5146500 (1992-09-01), Maurer
patent: 5159632 (1992-10-01), Crandall
patent: 5166978 (1992-11-01), Quisquater
LandOfFree
Cryptographic communication method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cryptographic communication method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryptographic communication method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1270646