DATA HIDING METHOD VIA REVISION RECORDS ON A COLLABORATION PLATFORM
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United States of America Patent
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Issued Date -
Nov 12, 2015
app pub date -
Oct 23, 2014
filing date -
May 9, 2014
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Abstract
The present invention provides a data hiding method via revision records on a collaboration platform, which first creates a collaborative database including a plurality of articles and revision records. A user puts as input a cover document, a secret message, and a key on a collaboration platform. Based on four characteristics of multi-user collaborative-writing processing, the collaborative-writing platform is used, together with a key, to hide a secret message into the cover document automatically while simulating a collaborative-writing process and generate a stego-document where the secret message is hidden. Only authorized users with the key can extract the right secret message from the stego-document i.e. the message-hidden document successfully.
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