Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1997-02-12
1999-07-20
Hayes, Gail O.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 23, 380 49, 39518801, 3408253, 34082531, 34082534, H04K 100, H04L 900, G06F 704, G07D 700
Patent
active
059265493
ABSTRACT:
The present invention relates to a process for verifying the preservation of the integrity of an unprotected request sent by an anonymous client to a server, in which only one public key, that of the server, is used. This process is remarkable in that the anonymous client sends, along with his request, a flag which specifies whether or not the server must offer an absolute guarantee of non-repetition of the requests received as well as a unique number, that is, a number which never repeats or has a low probability of repetition, consisting either of a random number with a low probability of repetition or the concatenation of a time indicator and a random number with a certainty of non-repetition, the verification of said integrity being performed during the reception of the response to the request, for which reason the global response includes the response to the request plus the result of a one-way compression function applied to the request, flag and unique number combination, the integrity of the global response moreover being protected either by means of the public key of the server used as a signature key, or by means of a private key established using the public key of the server as an encryption key.
REFERENCES:
patent: 5214700 (1993-05-01), Pinkas et al.
patent: 5774552 (1998-06-01), Grimmer
patent: 5841871 (1998-11-01), Pinkas
IEEE Journal On Selected Areas In Communication, vol. 7, No. 4, May 1989, New York, US, pp. 505-516 XP000007991, N. Nakao et al.: "Proposal on a Secure Communications Service Element (SCSE) In The OSI Application Layer" Paragraph III.B, Paragraph III.C.
IEEE Journal On Selected Areas In Communication, vol. 7, No. 4, May 1989, New York, US, XP000007972, pp. 517-524 C. Mitchell et al.: "CCITT/ISO Standards For Secure Message Handling", Paragraph II.A, Paragraph IV.B.
Bull S.A.
Hayes Gail O.
Kondracki Edward J.
Sayadian Hrayr A.
LandOfFree
Process for verifying the preservation of the integrity of an un does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for verifying the preservation of the integrity of an un, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for verifying the preservation of the integrity of an un will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1329434