> not cribbing about small issues but shouldn't we be using a more secure has algorithm now a days ?

found the correct sigtool parameters :)

    --md5 [FILES]                          Generate MD5 checksum from stdin

                                           or MD5 sigs for FILES
    --sha1 [FILES]                         Generate SHA1 checksum from stdin
                                           or SHA1 sigs for FILES
    --sha256 [FILES]                       Generate SHA256 checksum from stdin
                                           or SHA256 sigs for FILES