Browse Prior Art Database

(BMP) Digital Contents Certification System based Watermarking technology

IP.com Disclosure Number: IPCOM000015794D
Original Publication Date: 2002-Jul-01
Included in the Prior Art Database: 2003-Jun-21
Document File: 3 page(s) / 70K

Publishing Venue

IBM

Abstract

Disclosed is a digital contents certification system using watermark (WM) technology.

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(BMP) Digital Contents Certification System based Watermarking technology

Disclosed is a digital contents certification system using watermark (WM) technology.

With rapid increase of the use of the digital contents (DC), their rights management has come up to a big problem, and WM technology has been focused on as a solution. This invention offers a business model for DC rights management using WM technology.

This invention is summarized as following items:
1. A content Certification Authority (CA) that issues contents certification tool (stand alone WM embedder).
2. A content CA that issues contents guarantee tool (stand alone WM detector).
3. A system and method to certificate contents owner and/or artificial alteration using the tool described in 1.
4. A system and method to guarantee contents owner and/or artificial alteration using the tool described in 2.

The detailed description of the above items 1 and 3 is, as follows (Fig 1.)

Fig 1. Contents CA and certification tool(Stand Alone WM embedder)

Content CA has WM key database(DB), Identification(ID) DB, and WM detector, and issues certification tool(Stand Alone WM embedder). Certification tool creator picks up one WM key and IDs from each DB, creates contents certification tool which comprehends WM embedding algorithm in it, and output the tool. WM detector detects an WM ID from the watermarked contents using WM key in WM key DB. Certification tool embeds WM into input contents using the WM key and ID in the tool.

The detailed description of the above items 2 and 4 is as follows (Fig 2.)

1

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Fig 2. Content CA and content guarantee tool (Stand Alone WM detector)

Contents CA has WM key DB, ID DB, and WM embedder, and issues contents guarantee tool (Stand Alon...