Directoryless public key cryptographic system and method

Details Directoryless public key cryptographic system and method Directoryless public key cryptographic system and method

2008-01-01

2008-01-01

Revak, Christopher (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S170000, C713S182000, C726S002000, C380S255000, C380S277000, C380S282000, C380S283000

Reexamination Certificate

active

10451003

ABSTRACT:
A method of operating an identity based directoryless key-code cryptographic communication system having two users A and B and a universal authority U, involving the generation of a public modulus M, being the product of two primes P and Q, and the operation of a publicly available secure one way hash function, #. User A presents his identity to U who uses #, M, P and Q to generate a decryption key, r, which is only made available to A. User B, who wishes to transmit a message to A, can encrypt data by using the #, M and A's identity. User A can recover the data by using r.

REFERENCES:
patent: 5150411 (1992-09-01), Maurer
patent: 5218637 (1993-06-01), Angebaud et al.
patent: 5315658 (1994-05-01), Micali
patent: 6687822 (2004-02-01), Jakobsson
patent: 6760752 (2004-07-01), Liu et al.
patent: 2003/0076954 (2003-04-01), Vanstone et al.
patent: 2003/0091192 (2003-05-01), Chen et al.
patent: 0482233 (1992-04-01), None
patent: 0973293 (1999-07-01), None
patent: 973293 (2000-01-01), None
Shamir, 1998, Department of Applied Mathematics, p. 47-52.
Maurer and Yacobi, 1991, Lecture Notes in Computer Science, vol. 547.
Chen, Kefer. “Authenticated Encryption Scheme Based On Quadratic Residue”. Electronic Letters. vol. 34, Issue 22. Oct. 1998. pp. 2115 and 2116. Found on the World Wide Web at: http://ieeexplore.ieee.org/iel4/2220/15941/00741318.pdf?tp=&arnumber=741318&isnumber=15941.
A. Fiat, et al., “How To Prove Yourself: Practical Solutions to Identification and Signature Problems,” Lecture Notes in Computer Science, 186-194, no date provided.

Affiliated with

Also associated with

Rating

Directoryless public key cryptographic system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Directoryless public key cryptographic system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directoryless public key cryptographic system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3941713