I created a text file with “just4root” as the contents of the file to look at what the linux command ‘sha1sum’ digests  the file — nicks@grant:~$ cat shatest just4root nicks@grant:~$ sha1sum shatest caa707808838ff4c8ac838d08d4e137878aea3ee shatest With maxima, we can again calculated the hash and verify that it checks ok. (%i5) load(stringproc); […]