SHAKE128SUM(1)

💅 shake128sum(1) — the General Commands Manual girlie ✨

okay so bestie, welcome to shake128sum, a member of the General Commands Manual family, and she is here to compute and check SHAKE128 message digests. no cap, that's literally the whole job. 🫶

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🌸 NAME 🌸

shake128sum — Compute and check SHAKE128 message digests 💖

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🎀 SYNOPSIS 🎀

shake128sum [-u | -l | -b | -c] [-R rate] [-C capacity] [-N output-size]
[-S state-size] [-W word-size] [-Z squeeze-count] [-vxz] [file ...]

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✨ DESCRIPTION ✨

So the vibe is: print or check SHAKE128 checksums. super simple. If you hand her no file at all, or if the file is -, she just reads standard input like the main character she is. 👑

• -u — Output checksums in upper-case hexadecimal representation. LOUD hex. uppercase slay. 🔥
• -l — Output checksums in lower-case hexadecimal representation. this is the default, so she's already doing it, bestie 💜
• -b — Output checksums in binary representation. ⚠️ this one suppresses the filenames and the checksum delimiters — only the checksums get printed. raw bytes, no accessories. 💀
• -c — Read SHAKE128 sums from the file and check them against the files on your system. the input files should be formatted as the output of this program, or similarly. 🧚 here's the catch though: this is not going to work if any of the filenames in the input file start with a regular space or horizontal tab, or if they contain a line feed, carriage return, or form feed — unless the -z option is also used. iykyk. 🙈
• -v — Print the hashing parameters. like, show me the receipts. ✨
• -x — Convert input files from hexadecimal form to binary form before calculating the checksums. glow-up the input first 💅
• -z — Lines end with NUL instead of LF. If used with -c, this applies to read files (not the output), but it will also apply more strict parsing and allow any whitespace in file names. 🦋

The following options change the hashing parameters — like, she lets you tweak the math, which is lowkey iconic:

• -R rate — Change the rate.
• -C capacity — Change the capacity.
• -N, -O output-size — Change the output size.
• -S, -B state-size — Change the state size.
• -W word-size — Change the word size.
• -Z squeeze-count — Change the number of squeezes that is performed. 🍓

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🔥 EXIT STATUS 🔥

• 0 — Successful completion. we ate and left no crumbs 💅
• 1 — Checksums did not match or a file did not exist. 😭
• 2 — An error occurred. 💀

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👑 AUTHORS 👑

Mattias Andrée <m@maandree.se> — the legend behind all this. 🫶

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🌈 NOTES 🌈

okay important thing, listen up: all commands in the sha3sum package allow changing the hashing parameters. but it is only intended to be used with keccaksum(1), or if you know what you are doing — apart from -N, which is intended to always be used with shake128sum(1), shake256sum(1), shake512sum(1), rawshake128sum(1), rawshake256sum(1), and rawshake512sum(1). so like, don't just go changing parameters for fun unless you're that girl. 🧚‍♀️

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fr fr, this page came from the SHA3SUM source, and yeah, SHAKE128SUM(1) is the same manual we've been living in the whole time. 🎀

bye bestie, go hash something gorgeous 💖🌸✨