Electronic shopping method, electronic shopping system and docum

Details Electronic shopping method, electronic shopping system and docum Electronic shopping method, electronic shopping system and docum

1996-08-01

1998-05-19

Gregory, Bernarr Earl

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 9, 380 21, 380 23, 380 24, 380 30, 380 49, 380 50, 705 26, 705 35, 705 39, 705 40, 705 44, H04L 900, H04L 930, H04L 932

Patent

active

057546568

ABSTRACT:
An electronic shopping method is provided by both an apparatus 10 and an apparatus 30 to hold a key K(A, C) in common, and both the apparatus 30 and an apparatus 40 to hold a key K(B, C) in common. The apparatus 10 transmits a cipher text C1 which is obtained by enciphering a written order P of the products to be purchased using a key K, a cipher text C2 which is obtained by enciphering the key K using the key K(A, C), and authentication information C3 relating to a part P2 of the written order P to the apparatus 30 and the like. The apparatus 40 deciphers the key K on the basis of the cipher text C2, transmits a cipher text C4 which is obtained by enciphering the key K using the key K(B, C) to the apparatus 30. The apparatus 30 deciphers the key K on the basis of the cipher text C4, deciphers the written order P on the basis of the cipher text C1, authenticates the part P2by referring the authentication information C3, and transmits a fifth cipher text C5 which is obtained by enciphering the authentication information C3 and the part P2 using the key K(B, C) to the apparatus 40. The apparatus 40 deciphers the part P2, and authenticates the part P2 by referring to the authentication information C3.

REFERENCES:
patent: 5416842 (1995-05-01), Aziz
patent: 5583940 (1996-12-01), Vidrascu et al.
patent: 5588060 (1996-12-01), Aziz
patent: 5590197 (1996-12-01), Chen et al.
patent: 5604803 (1997-02-01), Aziz
patent: 5633933 (1997-05-01), Aziz
patent: 5668877 (1997-09-01), Aziz

Affiliated with

Also associated with

Rating

Electronic shopping method, electronic shopping system and docum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic shopping method, electronic shopping system and docum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic shopping method, electronic shopping system and docum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1861388