Invention Grant
US08494162B2 Hardcopy document security 有权
硬拷贝文档安全

Hardcopy document security
Abstract:
A method for securing data in hardcopy documents. The method includes obtaining a page image having a private data item; generating an encrypted version of the private data item; obtaining a decoder identification (ID) value of a decoder; generating, using an encoder, a symbol having the encrypted version of the private data item and the decoder ID value; and generating a hardcopy document by recording the symbol on a physical medium, where the hardcopy document is transported to a subsystem having the decoder, and where the subsystem decrypts the encrypted version of the private data item after extracting the encrypted version of the private data item from the symbol.
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