Secure data communication system

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer

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Details

H04L 900

Patent

active

061192333

ABSTRACT:
A secure data communication system is shown for transferring digital data from one computer directly to another. The system includes specially adapted switches interconnected by high bandwidth private data lines. Subscribers use low cost, highly specialized computer mailboxes that connect to the switches over the public telephone network and are connected to subscribers' computers. Each mailbox has a unique identification number burned on a PROM located therein. Switches verify the identification of a mailbox both through the unique identification number and by a series of callbacks to the mailbox's registered telephone number to ensure that the mailbox is properly located. A network scheduler receives pending transaction requests and calculates a time when the sending and receiving mailbox are both available for the transfer. The data may be compressed and/or encrypted during the transfer.

REFERENCES:
patent: 4876717 (1989-10-01), Barron et al.
patent: 5333152 (1994-07-01), Wilber
patent: 5369686 (1994-11-01), Dutra et al.
patent: 5379340 (1995-01-01), Overend et al.
patent: 5436960 (1995-07-01), Campana, Jr.
patent: 5440618 (1995-08-01), Riegel et al.
patent: 5483352 (1996-01-01), Fukuyama et al.
patent: 5583658 (1996-12-01), Takezawa et al.
patent: 5836010 (1998-11-01), Kim et al.
patent: 5844970 (1998-12-01), Hsu et al.
patent: 5872841 (1999-02-01), King et al.
patent: 5909215 (1999-06-01), Berstis et al.
patent: 5909487 (1999-06-01), Mainker et al.
patent: 5940751 (1999-08-01), Kaplan et al.
Simmons, Gustavus. "How to (Selectively) Broadcast a Secret" Proceedings of the 1985 Symposium on Security and Privacy, IEEE 1985, pp. 108-113, Apr. 1985.
Horback, Glen. "Callback Security Unit Protects Switched Data Communications Systems" Computer Technology Review, Fall 1985, pp. 25-31, Sep. 1985.
Lahti, B.P. Modern Digital Communication System, Oxford University Press. Oxford, England 1998 p. 368, 421-2, 432, May 1998.
Smith, Jim. "Call-back schemes ward off unwanted acces by telephone" Electronics. Mar. 8, 1984, pp. 131-135.

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