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Computer Security: Chapter 3 - Privacy Enhancing Technologies (PET) includes about PET, Encryption Tools, Policy Tools, Filtering Tools, SPAM Filters, Cookie Cutters, Anonymity Tools, Autonomy Enhancing Technology, Seclusion Enhancing Technologies. | 3. Privacy Enhancing Technologies (PET) Bobby Vellanki Computer Science Dept. Yale University Oct . 2003 PET PET = Privacy Enhancing Technology – technology that enhances user control and removes personal identifiers Users want free Privacy Hundreds of new technologies developed Cf. Electronic Privacy Info Center - www.Epic.org 4 categories of PETs: Encryption Tools (e.g., SSL) Policy Tools (e.g., P3P, TRUSTe) Filtering Tools (e.g., Cookie Cutters, Spyware) Anonymity Tools (e.g., Anonymizer, iPrivacy) [cf. Bobby Vellanki] Encryption Tools Encryption tools Examples: SSL, PGP, Encryptionizer Thought of as a security tool to prevent unauthorized access to communications, files, and computers Users don’t see the need Necessary for privacy protection but not sufficient by themselves Pros: Inexpensive (free) / Easily accessible Cons: Encryption Software isn’t used unless it is built-in to the software Both parties need to use the same software Conclusions: Easy access All parties need to use the same tool Good start but not sufficient enough [cf. Bobby Vellanki] Policy Tools (1) P3P (Platform for Privacy Preferences) Developed by World Wide Web Consortium Usage: Users declare their privacy policy on their browsers Websites register their policy with Security agencies The website policy is compared with user policy and the browser makes automated decisions Benefits: Might help uncover privacy gaps for websites Can block cookies or prevent access to some sites Built into IE 6.0 and Netscape 7 as of July 2002 [cf. Bobby Vellanki] Policy Tools (2) Other Policy Tools TRUSTe Non-profit organization which ensures that websites are following their privacy policy Promotes fair information practices BBBonline (Better Business Bureau) Conclusions Users are unaware of Privacy Policies Not all websites have Policy tools Need automated checks to see if websites are following their privacy policy [cf. Bobby Vellanki] Filtering Tools Some Types 1) SPAM filtering 2) . | 3. Privacy Enhancing Technologies (PET) Bobby Vellanki Computer Science Dept. Yale University Oct . 2003 PET PET = Privacy Enhancing Technology – technology that enhances user control and removes personal identifiers Users want free Privacy Hundreds of new technologies developed Cf. Electronic Privacy Info Center - www.Epic.org 4 categories of PETs: Encryption Tools (e.g., SSL) Policy Tools (e.g., P3P, TRUSTe) Filtering Tools (e.g., Cookie Cutters, Spyware) Anonymity Tools (e.g., Anonymizer, iPrivacy) [cf. Bobby Vellanki] Encryption Tools Encryption tools Examples: SSL, PGP, Encryptionizer Thought of as a security tool to prevent unauthorized access to communications, files, and computers Users don’t see the need Necessary for privacy protection but not sufficient by themselves Pros: Inexpensive (free) / Easily accessible Cons: Encryption Software isn’t used unless it is built-in to the software Both parties need to use the same software Conclusions: Easy access All parties need .
