Message authentication

Details Message authentication Message authentication

2011-05-24

2011-05-24

Abrishamkar, Kaveh (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S171000, C713S178000, C380S259000, C380S281000, C380S283000, C380S284000

Reexamination Certificate

active

07949875

ABSTRACT:
For the authentication of messages communicated in a distributed system from an originator to a destination a keyed-hashing technique is used according to which data to be authenticated is concatenated with a private (secret) key and then processed to the cryptographic hash function. The data are transmitted together with the digest of the hash function from the originator to the destination. The data comprises temporal validity information representing the temporal validity of the data. For example the setup key of a communication is therefore only valid within a given time interval that is dynamically defined by the communication originator. After the time interval is exceeded the setup key is invalid and cannot be reused again.

REFERENCES:
patent: 5737419 (1998-04-01), Ganesan
patent: 5757920 (1998-05-01), Misra et al.
patent: 5781629 (1998-07-01), Haber et al.
patent: 5926549 (1999-07-01), Pinkas
patent: 5956404 (1999-09-01), Schneier et al.
patent: 6189098 (2001-02-01), Kaliski, Jr.
patent: 6198824 (2001-03-01), Shambroom
patent: 6230269 (2001-05-01), Spies et al.
patent: 6237095 (2001-05-01), Curry et al.
patent: 6363365 (2002-03-01), Kou
patent: 6367013 (2002-04-01), Bisbee et al.
patent: 6393566 (2002-05-01), Levine
patent: 6490682 (2002-12-01), Vanstone et al.
patent: 6591364 (2003-07-01), Patel
patent: 7315948 (2008-01-01), Peyravian et al.
patent: 0 874 300 (1998-10-01), None
patent: WO 99 57846 (1999-11-01), None
Bellare, M., et al., “Keying Hash Functions For Message Authentication”, Proceedings of the Annual International Cryptology Conference (CRYPTO), DE, Berlin, Springer, vol. Conf. 16, 1996, pp. 1-15, XP000626584.

Affiliated with

Also associated with

Rating

Message authentication does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2673331