digest

# File lib/rubygems/package.rb, line 278
  def digest entry # :nodoc:
    algorithms = if @checksums then
                   @checksums.keys
                 else
                   [Gem::Security::DIGEST_NAME].compact
                 end

    algorithms.each do |algorithm|
      digester =
        if defined?(OpenSSL::Digest) then
          OpenSSL::Digest.new algorithm
        else
          Digest.const_get(algorithm).new
        end

      digester << entry.read(16384) until entry.eof?

      entry.rewind

      @digests[algorithm][entry.full_name] = digester
    end

    @digests
  end