Copy protection of data
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United States of America Patent
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Jul 18, 2006
Grant Date -
N/A
app pub date -
Mar 18, 1998
filing date -
Mar 27, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A copyright protection scheme downloads data from a server, typically over the World Wide Web to a client for presentation to a user. The downloaded data is cryptographically protected, by encryption and hashing. When displayed by the client, storing and copying functions are selectively disabled in respect of the data, in order to prevent unauthorized copying.
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