Copy protection of data

Details Copy protection of data Copy protection of data

2008-04-29

2008-04-29

Hewitt, II, Calvin Loyd (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S050000, C705S051000, C705S059000

Reexamination Certificate

active

10435378

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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