1. Protecting and Managing Electronic Content using Digital Battery
Timothy A. Budd, Oregon State University,
IEEE Computer , Volume: 34
Issue: 8 , Aug 2001 Pages:
Surender Reddy Adavalli

2. Digital Battery A de-grading program and a monitoring
program along with decryption algorithm
embedded in a secured place like smart card
is called as Digital Battery.

3. Overview
According to Budd, digital batteries can be used to protect electronic content from illegal access.
All music and video content should be encrypted
and can be decrypted using digital batteries only.
Users should pay for digital battery and not to
music and video content.
Artist gets paid depending on usage statistics obtained from battery.

4. Purpose of Digital Battery
Protection:
Uses cryptographic technique to decrypt
electronic content while it is played on device.
Management :
All the degraded batteries are collected and
processed for statistical analysis depending on
which artists and producers are paid.

5. Appreciative Comment Good diagrammatic representation of the concept
Traditional vs. Digital Battery Model
In traditional model, there is no control over product except legal defense.
In digital battery model, product can be controlled and managed.

6. Appreciative Comment Cont..
Presents an innovative concept which may initiate further research.
Concept can be used for security of intellectual property like software installations, which is more convincing than electronic content like music and video content.

7. Critical Comments Encryption techniques not discussed in detail.
Practical implementation not discussed
Problems with existing devices
Need to redesign all the consumer appliances like music and video players, print devices etc
As device architecture has to be changed manufacturers may suffer
Considered only artists and producers but not manufacturers

8. Question Electronic content is played on enormous number
of devices and if this new concept is introduced
consumer appliance manufacturers are not gaining
any thing. How can they be convinced and
compromised?
Thank You