new

# File lib/rubygems/security/signer.rb, line 33
  def initialize key, cert_chain, passphrase = nil
    @cert_chain = cert_chain
    @key        = key

    unless @key then
      default_key  = File.join Gem.default_key_path
      @key = default_key if File.exist? default_key
    end

    unless @cert_chain then
      default_cert = File.join Gem.default_cert_path
      @cert_chain = [default_cert] if File.exist? default_cert
    end

    @digest_algorithm = Gem::Security::DIGEST_ALGORITHM
    @digest_name      = Gem::Security::DIGEST_NAME

    @key = OpenSSL::PKey::RSA.new File.read(@key), passphrase if
      @key and not OpenSSL::PKey::RSA === @key

    if @cert_chain then
      @cert_chain = @cert_chain.compact.map do |cert|
        next cert if OpenSSL::X509::Certificate === cert

        cert = File.read cert if File.exist? cert

        OpenSSL::X509::Certificate.new cert
      end

      load_cert_chain
    end
  end