Secure data downloading, recovery and upgrading
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United States of America Patent
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Apr 30, 2002
Grant Date -
Feb 28, 2002
app pub date -
May 18, 1998
filing date -
May 18, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention provides an improved method and system for secure down-loading, recovery, and upgrading of data. A client device receives information from a server device using a reliable software modules stored in permanent memory in the client device. The reliable software modules perform software and data integrity tests, and locate and retrieve data for recovery or upgrade of the client device. The client device confirms the trustworthiness of the received information device by comparing digital signatures or digests for the information it receives with known digital certificates in the reliable software module.
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