alicef@gentoo.org Alice Ferrazzi Assign bugs to me. mrueg@gentoo.org Manuel RĂ¼ger CC him on bugs. sign is a file signing and signature verification utility. It's main purpose is to be a simple and convenient extension to a tar/gz/bzip2 line of tools to check file integrity and authenticity. It's small and simple, it does just one thing and hopefully does it well.