Method and system for copy protection of displayed data content

Details Method and system for copy protection of displayed data content Method and system for copy protection of displayed data content

2006-01-31

2006-01-31

Caldwell, Andrew (Department: 2131)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C715S252000, C715S252000

Reexamination Certificate

active

06993662

ABSTRACT:
A method for altering text displayed in a formatted page, including locating a buffer of memory locations containing contents of a formatted page, locating a first text string between two markers within the buffer, the first string being an encrypted text string including N characters, replacing the first text string with a second text string, the second string being a decrypted text string including M characters, where M is less than N, and inserting N−M special fill characters in the N−M unfilled memory locations between the markers, so as to avoid the need to move the markers closer together.

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