Privacy-enhancing tools
P3P: P3P (Platform for Privacy Preference Project)
A framework for automated privacy discussions
1. Web sites disclose their privacy practices in standard machine-readable
formats;
2. Web browsers automatically retrieve P3P privacy policies and compare
them to users’ privacy preferences;
3. Sites and browsers can then negotiate about privacy terms.
☞ developed by the W3C (World-Wide Web Consortium), 2002 &
2005
Slide 61
http://www.zurich.ibm.com/~gka/ePrivacy/ePrivacy-B.pdf
• P3P (Platform for Privacy Preference Project)
• User sets privacy preferences
• Web server transmits privacy policies
• Software determines if web site meets users’ requirements
• Participation by web site is voluntary