gtkhash: gtkhash (A utility for computing checksums) gtkhash: gtkhash: GtkHash is a GTK+ utility for computing message digests or checksums. gtkhash: Currently supported hash functions include MD5, MD6, SHA1, SHA256, gtkhash: SHA512, RIPEMD, TIGER and WHIRLPOOL. gtkhash: gtkhash: gtkhash: gtkhash: gtkhash: gtkhash: