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4.2. Certificate Extensions

This section describes standard certificate extensions and Internet-specific extensions.

Standard Extensions (4.2.1)

  • Authority Key Identifier
  • Subject Key Identifier
  • Key Usage
  • Certificate Policies
  • Policy Mappings
  • Subject Alternative Name
  • Issuer Alternative Name
  • Subject Directory Attributes
  • Basic Constraints
  • Name Constraints
  • Policy Constraints
  • Extended Key Usage
  • CRL Distribution Points
  • Inhibit anyPolicy
  • Freshest CRL

Private Internet Extensions (4.2.2)

  • Authority Information Access
  • Subject Information Access