Contents transmission control method with user authentication fu

Details Contents transmission control method with user authentication fu Contents transmission control method with user authentication fu

1997-09-09

2000-09-05

Hayes, Gail O.

Cryptography

Communication system using cryptography

Symmetric key cryptography

713155, 713174, H04L 900

Patent

active

061154725

ABSTRACT:
A user sets n=0, his mail account A and password S, then computes V.sub.0 =E(A,S), W.sub.0 =E(A,V.sub.0), V.sub.1 =E(A,A.sym.1), W.sub.1 =E(A,V.sub.1) and M.sub.0 =E(W.sub.1, V.sub.0), and initially registers W.sub.0, W.sub.1, M.sub.0 and A by e-mail in a mail server. At a visiting site the user sends a service request and A to the mail server form an arbitrary terminal connected to the Internet, and the mail server reads out the authentication session number n corresponding to the identifier A and sends it back to the user. The user computes V.sub.n-1 =E(A,S.sym.(n-1)), V.sub.n+1 =E(A,S.sym.(n+1)), W.sub.n+1 =E(A,V.sub.n+1). V.sub.n =E(A,S.sym.n) and M.sub.n =E(W.sub.n+1, V.sub.n) and sends V.sub.n-1, W.sub.n+1 and M.sub.n to the mail server. The mail server computes E(A,V.sub.n-1) and E(W.sub.n, V.sub.n-1) and if they agree with preregistered W.sub.n-1 and M.sub.n-1, respectively, the mail server accepts the user as valid and sends a mail message of the user.

REFERENCES:
patent: 5239294 (1993-08-01), Flanders et al.
patent: 5506905 (1996-04-01), Markowski et al.
patent: 5604803 (1997-02-01), Aziz
patent: 5721779 (1998-02-01), Funk
patent: 5794221 (1998-08-01), Egendorf
Leslie Lamport, "Password Authentication with Insecure Communication," Communications of the ACM, vol. 24, No. 11, Nov. 1981, pp. 770-772.
Akihiro Shimizu, "A Dynamic Password Authentication Method Using a One-Way Function," Systems and Computers in Japan, vol. 22, No. 7, 1991, New York, pp. 32-40.

Affiliated with

Also associated with

Rating

Contents transmission control method with user authentication fu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Contents transmission control method with user authentication fu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contents transmission control method with user authentication fu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2220627