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Last active August 29, 2015 14:19
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From stackoverflow:

Marketing hype (and cost). This is not part of the spec.

From Wikipedia:

VeriSign uses the concept of classes for different types of digital certificates :

  • Class 1 for individuals, intended for email.
  • Class 2 for organizations, for which proof of identity is required.
  • Class 3 for servers and software signing, for which independent verification and checking of identity and authority is done by the issuing certificate authority.
  • Class 4 for online business transactions between companies.
  • Class 5 for private organizations or governmental security.

Related:

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