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certlint

X.509 certificate linter

certlint is currently at version 0.1.0. It does not yet build as a gem. For now, execute by running:

ruby -I lib bin/certlint or ruby -I lib bin/cablint

Required gems

  • public_suffix
  • open4
  • simpleidn

If using less than Ruby 2.3, you also need the unf gem.

Building certlint-x509helper

certlint requires that the program certlint-x509helper be in your path and executable.

See build-x509helper/README for instructions on building it.

Output

Messages will be output one per line. Each line will start with a single capital letter, a colon, and a space. The letters indicate the type of message:

B: Bug. Your certificate has a feature not handled by certlint. I: Information. These are purely informational; no action is needed. N: Notice. These are items known to cause issues with one or more implementations of certificate processing but are not errors according to the standard. W: Warning. These are issues where a standard recommends differently but the standard uses terms such as "SHUOLD" or "MAY". E: Error. These are issues where the certificate is not compliant with the standard. F: Fatal Error. These errors are fatal to the checks and prevent most further checks from being executed. These are extremely bad errors.