new

# File lib/rubygems/security.rb, line 791
    def initialize(key, cert_chain)
      Gem.ensure_ssl_available
      @algo = Gem::Security::OPT[:dgst_algo]
      @key, @cert_chain = key, cert_chain

      # check key, if it's a file, and if it's key, leave it alone
      if @key && !@key.kind_of?(OpenSSL::PKey::PKey)
        @key = OpenSSL::PKey::RSA.new(File.read(@key))
      end

      # check cert chain, if it's a file, load it, if it's cert data, convert
      # it into a cert object, and if it's a cert object, leave it alone
      if @cert_chain
        @cert_chain = @cert_chain.map do |cert|
          # check cert, if it's a file, load it, if it's cert data, convert it
          # into a cert object, and if it's a cert object, leave it alone
          if cert && !cert.kind_of?(OpenSSL::X509::Certificate)
            cert = File.read(cert) if File::exist?(cert)
            cert = OpenSSL::X509::Certificate.new(cert)
          end
          cert
        end
      end
    end