Location-sensitive remote database access control

Details Location-sensitive remote database access control Location-sensitive remote database access control

1992-09-30

1993-09-07

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 25, H04K 900

Patent

active

052436527

ABSTRACT:
A communication system includes a remote mobile node which acquires time-correlated data of its actual position from a global positional system (GPS), and securely transmits the information as a position history to a central facility. The mobile node includes encrypted programming material such as copyrighted video. At the central facility, a comparison is made between the received position history and predetermined signature data representing acceptable time-position histories. If a positive match is detected, a decryption key associated with the matched history is forwarded to the mobile node for decoding of the encrypted programming material.

REFERENCES:
patent: 4860352 (1989-08-01), Laurance et al.
patent: 4993067 (1991-02-01), Leopold

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