Install caja-gtkhash by entering the following commands in the terminal:
sudo apt update sudo apt install caja-gtkhash
Description:
caja extension for computing checksums and more using gtkhash
The GtkHash extension for caja which allows users to compute message digests or checksums using the mhash library. Currently supported hash functions include MD5, MD6, SHA1, SHA256, SHA512, RIPEMD, TIGER and WHIRLPOOL.
Homepage: http://gtkhash.sourceforge.net
Version: 1.1.1-2
Section: universe/utils