check_root

# File lib/rubygems/security/policy.rb, line 132
  def check_root(chain, time)
    raise Gem::Security::Exception, 'missing signing chain' unless chain

    root = chain.first

    raise Gem::Security::Exception, 'missing root certificate' unless root

    raise Gem::Security::Exception,
          "root certificate #{root.subject} is not self-signed " +
          "(issuer #{root.issuer})" if
      root.issuer.to_s != root.subject.to_s # HACK to_s is for ruby 1.8

    check_cert root, root, time
  end