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News about the privacy document

News about the privacy document. 6 th TF-LSD Meeting Limerick 2.6.2002 Peter Gietz peter@daasi.de. Status. No comments other than the discussion at last meeting These comments were on crawler detection and crawler policy, which were included in new chapter 3:

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News about the privacy document

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  1. News about the privacy document 6th TF-LSD Meeting Limerick 2.6.2002 Peter Gietz peter@daasi.de

  2. Status • No comments other than the discussion at last meeting • These comments were on crawler detection and crawler policy, which were included in new chapter 3: • Generic description of the White Pages Indexing System • Privacy enhancing technologies were renamed to Privacy Preserving technologies

  3. 3.1. Motivation • Replacement of the X.500 based Nameflow service • Problems: no chaining and no knowledge information

  4. 3.2. Overall Architecture • 3.2.1. The Common Indexing Protocol and ist implementations • Very short description of CIP and of the DESIRE II and the LIMS implementation • Generic description of the componants • 3.2.2. Referrals contain the data given away by the indexing system • Detailed analysis of the fields of an LDAP URL • Short discussion on different posibilities to use them

  5. Referrals • Two types of answers in a referral: • Ldap://datahost:888/c=NL??sub?(mail=xyz) • Ldap://datahost:888/c=NL, o=Univ. XY, ou=Department of Physics, cn=Mister X?base?

  6. 3.3. Data Sourcrs • Different modes of data subject‘s consent: • Consent with signature on paper • Consent via email • Consent implied by non objection

  7. 3.4. Indexing schema • Minimalset of attributes • Common name • Surname • Given name • Organization • Organizational unit • Mail • country

  8. 3.5. Crawler access to the data • Server side sizelimits can be overcome by crawlers • Spammers could use such crawlers

  9. 3.5.1. Crawler detection • Distinct features of a crawler: • Big number of search requests • Regular patterns in sending requests • Short timeperiod in between requests • IP address known to belong to a spammer • IP address maps to a domain outside the community • Crawler doesn‘t bind to authenticate itself

  10. 3.5.2. Crawler policy • Crawler policy defines: • which part of the name space to crawl • Which attributes should be crawled • Which object classes to include in the search filter • How many levels should be crawled • Etc.

  11. 3.6. Protection of the Index Objects • PGP-MIME encryption

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