A study of the secure digital music initiative
Download
1 / 20

A Study of the Secure Digital Music Initiative - PowerPoint PPT Presentation


  • 409 Views
  • Uploaded on

A Study of the Secure Digital Music Initiative Brandon Sutler Vineet Aggarwal Sachin Kamath University of Virginia CS 551 In The Red Corner… Recording Industry Association of America (RIAA) RIAA – Who? $15 Billion Industry RIAA Companies – 90% all albums recorded and sold in US.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'A Study of the Secure Digital Music Initiative' - Mercy


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
A study of the secure digital music initiative l.jpg
A Study of the Secure Digital Music Initiative

Brandon Sutler

Vineet Aggarwal

Sachin Kamath

University of Virginia

CS 551


In the red corner l.jpg
In The Red Corner…

Recording Industry Association of America (RIAA)


Riaa who l.jpg
RIAA – Who?

  • $15 Billion Industry

  • RIAA Companies – 90% all albums recorded and sold in US.

  • “Big 5” – BMG, Sony, Warner, Capitol, Universal

    • 75% of Market Share


In the blue corner l.jpg
In the Blue Corner…

The Consumers (You)


The problem l.jpg
The Problem

  • Proliferation of Digital Media

    • Distribution

    • Storage

  • Copyright Infringement

  • Consumer experience


Where s sdmi l.jpg

SDMI, Actually

SDMI, Ideally

Where’s SDMI?

RIAA

The Consumers


Sdmi introduction l.jpg
SDMI Introduction

  • Deliver secure digital music to consumers

  • Give good consumer experience

  • Protect artist’s right to make money

  • Protect label’s right to control industry


Discussion overview l.jpg
Discussion Overview

  • The big picture

  • SDMI’s plan

    • Watermarking Technology

  • Social implications

  • Conclusion


The big picture or what did we do l.jpg
The Big PictureOr, What Did We Do?

  • SDMI Specification

    • Phase I

      • Watermarking

        • SDMI

        • Verance, 4Centity

    • Phase II

  • Legal Issues

  • Consumer Acceptance


The sdmi protocol l.jpg
The SDMI Protocol

  • Step 1: Determine if music is SDMI Protected Content

  • Step 2: Decrypt

  • Step 3: Check trigger

  • Step 4: Play or Reject


Sdmi phase i screen l.jpg
SDMI Phase I Screen

  • Detect “trigger”

    • Based on watermarking technology

    • “millenium trigger”

  • Detect “Usage Rules”

    • Govern Copy, Move, Check-in/Check-out, Export, etc.

    • Not yet written!


Phase i triggers l.jpg

SDMI Protected Content

If trigger present

reject content

message to upgrade to Phase II displayed.

No trigger: content admitted

Unprotected Content

If trigger present

reject content

message to upgrade to Phase II displayed.

No trigger

“no more copies:” rejected

Otherwise, admitted

Phase I Triggers


Digital watermarks l.jpg
Digital Watermarks

  • Awarded job for SDMI

  • Electronic DNA©

  • Interwoven tag

    • Digital Noise

    • 15 second interval

  • Stored Information

    • Copy permissions, Identifier tag, Additional Info


Digital watermark spec l.jpg
Digital Watermark Spec.

Content Owner Tag (8 bits)

Additional Info (optional 60 bits)

Copy Permissions (4 bits)

- Copy once, never, unlimited…


Phase ii l.jpg
Phase II

Content

Phase II Mark present

Mark not present

Compressed

Not compressed

ADMIT

Supposed to be

ADMIT

Not supposed to be

ADMIT

NOT YET WRITTEN

REJECT


Legal issues l.jpg
Legal Issues

  • Possible antitrust violations

    • SDMI is a “specification, not an agreement”

    • Neutral industry standards that benefit consumers are not inherently illegal

But what is the benefit to the artists?


Legal issues17 l.jpg
Legal Issues

  • Fair Use

  • Backwards compatibility

    • Example

  • Default limit: four copies

  • No interoperability


Social issues l.jpg
Social Issues

  • RIAA inspections

  • Backwards compatibility

  • Non-compliance

  • Hacker tools would make circumventing copy protection routine

  • No interoperability

  • Consumer Cost:Benefit


Conclusions l.jpg
Conclusions

  • Although a decent attempt, SDMI will fail in the long run

    • Three points of failure:

      • Lack of consumer support

      • Legal challenge just around the corner

      • Failure to come up with “Phase II”

        • Too much, too fast



ad