clsha2(1)

📦
version 3.4.9.6 · 2 versions
, in fedora 43, fedora 44

💖 clsha2 — ok bestie, let's hash it out 💖

clsha2(1), from the Cryptlib Tools family. Pull up a chair, this one's short and sweet.

✨ NAME ✨

clsha2 — the little cutie that tells you the SHA256 hash of literally whatever you feed it 🫶

🎀 SYNOPSIS 🎀

clsha2 [OPTION] [FILE]

🌸 DESCRIPTION 🌸

Okay so here's the vibe: clsha2 crunches the SHA256 hash value of your input, and that input can be either a file or standard input. It then prints that hash value on standard output — in hexadecimal by default, or in base64 if you ask nicely. And bestie, the hash value is 256 bits long. Iconic length, no notes.

If you don't give it a FILE, or you hand it a "-", it reads from standard input instead. So you can pipe stuff in like it's nothing 💅

💅 OPTIONS 💅

  • --base64 | -b64 — prints the hash value base64 encoded. Without this option, the hash value is printed hexadecimal. That's the whole tea ☕
  • --help — prints a help text. Your bestie always comes through 🥹
  • --version — prints the version of clsha2. Gotta know which queen you're running 👑

🦋 NOTES 🦋

Full documentation lives right here: <https://senderek.ie/cryptlib/tools>

This program depends on two packages — one providing the cryptlib shared object library, and one providing the python3-bindings to that library. They're a package deal, fr fr.

You can download both packages in RPM or DEB format at https://senderek.ie/cryptlib/

🌈 FILES 🌈

clsha2 uses the cryptlib shared object library and its python3 bindings. Here's exactly where they hang out:

  • /lib64/libcl.so.3.4.9
  • /usr/lib/python3.1x/site-packages/cryptlib_py.so

Copyright © 2022 - 2026 Ralf Senderek. All rights reserved.

License BSD-3-Clause: <https://senderek.ie/cryptlib/bsd.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. (Say it with me: no warranty, periodt.)

🔥 SEE ALSO 🔥

🧚 AUTHORS 🧚

  • clsha2 is written by Ralf Senderek <innovation@senderek.ie>.
  • Cryptlib is written and maintained by Peter Gutmann <pgut001@cs.auckland.ac.nz>.

Absolute legends, both of them 💜

💀 BUGS 💀

Of course there aren't any bugs 🙈 but if you find any, please sent a report to innovation@senderek.ie.

bestie. they said "sent". i'm not fixing it. i'm just the messenger 💀

and that's the whole page!! 💖✨ this is Cryptlib Tools, Februray 2026, and you just read clsha2(1) — slay, you're a Unix girlie now 🎀🦋🌸

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