SLIDE 1
Agenda
- Introduction
- Content based media security
- What is DRM?
- How do DRM systems work?
- DRM models
- Mobile DRM
- Concluding remarks
Security and digital rights management Kati Tuomainen - - PowerPoint PPT Presentation
Security and digital rights management Kati Tuomainen - - PowerPoint PPT Presentation
Security and digital rights management Kati Tuomainen khtuomai@cc.hut.fi Agenda Introduction Content based media security What is DRM? How do DRM systems work? DRM models Mobile DRM Concluding remarks Introduction
SLIDE 2
SLIDE 3
Introduction
- Computer security protects information on the
computers
- Network security protects information while it is
being transmitted over the network
- Content security protects intellectual rights at
application or presentation layers utilizing security mechanisms generally used in computer and network security
SLIDE 4
Security services
- Confidentiality
- Integrity
- Authentication
- Antipiracy protection
- Access control
- Nonrepudiation
- Availability
SLIDE 5
Content based media security
- Characteristics of the information to be protected
vary
- Protection is tied to a higher level of the content
- sematic information is added to assure intended
use
SLIDE 6
DRM 1/2
- Digital management of user rights to content or of
the content owners rights to the use of the content
- Linking specific user rights you wish to control to
the media
– Viewing – Duplication – Access – Distribution rights – ....
SLIDE 7
DRM 2/2
- DRM links content to users and their rights
- Content is seen as the intellectual property or
work
- Users are all the parties involved in the content
distribution chain
- Rights are the permissions, constraints, and
- bligations a user has
SLIDE 8
Content value chain
SLIDE 9
DRM building blocks
- Encryption
- Digital signatures
- Digital watermarking and fingerprinting
- Metadata
- Security protocols
SLIDE 10
DRM distribution models
- Download
- Peer-to-peer
- Multicast
- DVB
SLIDE 11
DRM models
- Subscribtion based
- Promotion
- Pay per view
- Micropayment
- Floating licences
- superdistribution
SLIDE 12
Mobile DRM
- Mobile environments place their own
requirements on DRM systems
- MDRM can be based on
– Rights enforcement – System architectures – Usage rules – DRM models – Content variety or value – Security levels
SLIDE 13
Concluding remarks
- The challenge in creating DRM systems is to find
the balance between the protection of the information, and the cost, as well as usability
- The goal of DRM is to facilitate electronic