System and method of multiple-level control of electronic devices
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United States of America Patent
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N/A
Issued Date -
Sep 9, 2004
app pub date -
Feb 20, 2004
filing date -
Feb 21, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method of multiple-level control of an electronic device are provided. Authorization information comprising data integrity and authentication information for each of a plurality of authorization levels is stored on an electronic device to be controlled. When controlled information associated with one of the plurality of authorization levels is received at the electronic device from a source, integrity of the received controlled information is checked and a determination as to whether the source is a party authorized at the one of the plurality of authorization levels is made, based on the data integrity and authentication information for the one of the plurality of authorization levels. The received controlled information is stored on the electronic device where the integrity of the received controlled information is verified and the source is a party authorized at the one of the plurality of authorization levels.
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