puppetlabs/puppet · error · Puppet::Error

Unknown signature algorithm '%{ln}'

Error message

Unknown signature algorithm '%{ln}'

What it means

Error "Unknown signature algorithm '%{ln}'" thrown in puppetlabs/puppet.

Source

Thrown at lib/puppet/ssl/base.rb:143

  end

  def digest_algorithm
    # The signature_algorithm on the X509 cert is a combination of the digest
    # algorithm and the encryption algorithm
    # e.g. md5WithRSAEncryption, sha256WithRSAEncryption
    # Unfortunately there isn't a consistent pattern
    # See RFCs 3279, 5758
    digest_re = Regexp.union(
      /ripemd160/i,
      /md[245]/i,
      /sha\d*/i
    )
    ln = content.signature_algorithm
    match = digest_re.match(ln)
    if match
      match[0].downcase
    else
      raise Puppet::Error, _("Unknown signature algorithm '%{ln}'") % { ln: ln }
    end
  end

  private

  def wrapped_class
    self.class.wrapped_class
  end
end

View on GitHub (pinned to e227c27540)

When it happens

Trigger: Thrown at lib/puppet/ssl/base.rb:143 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of puppetlabs/puppet@e227c27540 (2026-08-21). Data as JSON: /api/errors/16ab22f54d919e6f. Report an issue: GitHub.