Network security architecture system utilizing seals

Details Network security architecture system utilizing seals Network security architecture system utilizing seals

2005-06-28

2005-06-28

Smithers, Matthew (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Having particular address related cryptography

C380S277000, C380S281000

Reexamination Certificate

active

06912655

ABSTRACT:
An efficient multicast key management is achieved by using seals. A security server generates a seal. In one embodiment, the seal contains a key. In another embodiment, the seal contains information for generating a key. An application server requests the seal from the security server and broadcasts the seal to a plurality of recipients. A recipient wishing to encrypt or decrypt a data stream transmits the received seal to the security server to be opened. If the recipient is authorized, the security server transmits a permit to the authorized recipient. In one embodiment, the recipient generates a key from the permit. In another embodiment, the permit is the key. If the recipient is a sender, the recipient encrypts data using the key and broadcasts the same encrypted data stream to all receivers. If the recipient is a receiver, the recipient decrypts an encrypted data stream using the key. In one embodiment, a seal with a corresponding offset value is sent periodically in a data stream. In another embodiment, multiple instances of identical seals are opened only once. In yet another embodiment, a seal is appended to each datagram packet. In a further embodiment, a seal is appended to any data stream.

REFERENCES:
patent: 4607137 (1986-08-01), Jansen
patent: 4679236 (1987-07-01), Davies
patent: 4853962 (1989-08-01), Brockman
patent: 4878246 (1989-10-01), Pastor et al.
patent: 4991087 (1991-02-01), Burkowski et al.
patent: 5081677 (1992-01-01), Green et al.
patent: 5115467 (1992-05-01), Esserman et al.
patent: 5120939 (1992-06-01), Claus et al.
patent: 5199073 (1993-03-01), Scott
patent: 5351293 (1994-09-01), Michener et al.
patent: 5393062 (1995-02-01), Cember
patent: 5602915 (1997-02-01), Campana et al.
patent: 5748736 (1998-05-01), Mittra
patent: 5960086 (1999-09-01), Atalla
patent: 6041408 (2000-03-01), Nishioka et al.
patent: 6088449 (2000-07-01), Atalla
patent: 6195751 (2001-02-01), Caronni et al.
patent: 6275859 (2001-08-01), Wesley et al.
patent: 6330671 (2001-12-01), Aziz
patent: 4243908 (1994-06-01), None
patent: 032107 (1981-07-01), None
patent: 0447063 (1991-09-01), None
patent: 0602335 (1994-06-01), None
patent: 2223614 (1990-04-01), None
patent: A 9200876 (1993-12-01), None
patent: WO 95/09498 (1995-04-01), None
patent: WO 97/16902 (1997-05-01), None
McGovern, T., “Varying Encryption Keys for a Single Call,” Motorola Technical Developments, vol. 24, Mar. 1995, pp. 61-62.
Merkel, R.C., “Secure Communications Over Insecure Channels,” Communications of the ACM, vol. 21, No. 4, Apr. 1978, pp. 294-299.
Radlo, E.J., “Cryptography in Cyberspace,” New Matter, vol. 20, No. 3, Jul. 24, 1995, pp. 44-48.
Schneier, B., Applied Cryptography: protocols, algorithms, and source code in C, John Wiley & Sons, Inc., 1stEd., 1994, pp. 42-65.
Tsubakiyama, H. and Kogo, K., “Security for Information Data Broadcasting System with Conditional-Access Control,” IEEE, 1993, pp. 164-170.
Wadzinske, “Key Pointer Rekeying,” Motorola Technical Developments, vol. 25, Jul. 1995, p. 136.

Affiliated with

Also associated with

Rating

Network security architecture system utilizing seals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Network security architecture system utilizing seals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Network security architecture system utilizing seals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3460485