# File lib/gpgme.rb, line 812
    def self.from_str(buf, copy = true)
      rdh = Array.new
      err = GPGME::gpgme_data_new_from_mem(rdh, buf, buf.length)
      exc = GPGME::error_to_exception(err)
      raise exc if exc
      rdh[0]
    end