Cryptography – Particular algorithmic function encoding
Patent
1995-09-28
1999-09-07
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
380 29, 380 46, H04L 900
Patent
active
059498838
ABSTRACT:
Encryption frequently needs to be used in communication networks which span different geographical regions which can be considered to be trusted to different extents. According to one embodiment, the invention uses both a strong encryption algorithm and a weak encryption algorithm. A device in the high-trusted region can encrypt using the strong algorithm and can decrypt using either the strong or weak algorithm. A device in the low-trusted region can decrypt with either the strong or the weak algorithm but can encrypt only with the weak algorithm.
REFERENCES:
patent: 3962539 (1976-06-01), Ehrsam et al.
patent: 4882779 (1989-11-01), Rahtgen
patent: 5142578 (1992-08-01), Matyas et al.
patent: 5179591 (1993-01-01), Hardy et al.
patent: 5222136 (1993-06-01), Rasmussen et al.
patent: 5416841 (1995-05-01), Merrick
patent: 5497420 (1996-03-01), Garneau et al.
patent: 5504816 (1996-04-01), Hamilton et al.
patent: 5504933 (1996-04-01), Makoto
patent: 5509077 (1996-04-01), Moehrmann
patent: 5638448 (1997-06-01), Nguyen
patent: 5651068 (1997-07-01), Klemba et al.
patent: 5659618 (1997-08-01), Takahashi et al.
patent: 5689566 (1997-11-01), Nguyen
patent: 5850443 (1998-12-01), Van Oorschot et al.
Technical Report No. 1979-1 entitled, "Secrecy, Authentication, and Public Key Systems", pp. 142-145, dated Jun. 1979, by Ralph Charles Merkle, Information Systems Laboratory, Stanford University.
Accredited Standards Committee on Financial Services, Standard X9.17 (Ansi), entitled "Financial Institution Key Management (Wholesale)," published by the American Bankers Association, Apr. 4 1985.
Cangialosi Salvatore
Entrust Technologies Ltd.
LandOfFree
Encryption system for mixed-trust environments does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Encryption system for mixed-trust environments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encryption system for mixed-trust environments will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1812235