verify

# File lib/rubygems/package.rb, line 585
  def verify
    @files     = []
    @spec      = nil

    @gem.with_read_io do |io|
      Gem::Package::TarReader.new io do |reader|
        read_checksums reader

        verify_files reader
      end
    end

    verify_checksums @digests, @checksums

    @security_policy.verify_signatures @spec, @digests, @signatures if
      @security_policy

    true
  rescue Gem::Security::Exception
    @spec = nil
    @files = []
    raise
  rescue Errno::ENOENT => e
    raise Gem::Package::FormatError.new e.message
  rescue Gem::Package::TarInvalidError => e
    raise Gem::Package::FormatError.new e.message, @gem
  end