IdentifierIssues

From InternetIdentityWorkshop

Josh Hoyt

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Identifiers and Identity

What is an identifier?

Examples:

  • Name - Josh Hoyt
  • e-mail address - josh@janrain.com
  • XRI - =j3h
  • nickname - Josh
  • username - joshhoyt
  • SSN - 012-34-5678
  • title - Software Engineer, JanRain, Inc.
  • URI - http://josh.myopenid.com/
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Properties of identifiers

Scope

  • Time Extent (expiration)
  • Domain
    • Local (comunity)
    • Global
      • Centralized
      • Decentralized
  • Uniqueness
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What do you get from an identifier?

  • Correlation (good and bad)

People and machines can know they're referring to the same entity. This is desireable for certain classes of interactions and undesireable for others. (Good to have a persistent identifier for IRC, e.g.)

  • Human recognition

People want to know who did what. Digital identifiers provide that for digital identity.

  • Discoverability (who is ...)

Provide a clear way to ask questions or make statements about an entity.

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