arcsign(1)

✨ arcsign ✨

okay bestie, so this is the manual page for arcsign from the General Commands Manual — yes it's giving very "old school Unix" but honestly it ate. 💅

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🎀 NAME 🎀

arcsign — a script for ARC signing messages on stdin. that's the whole vibe. 🦋

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🌸 VERSION 🌸

0.9.2 ✨ (she's a lil vintage, she's still slaying)

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💖 DESCRIPTION 💖

okay so listen. arcsign is a filter, right? and what a filter does is literally this:

• it reads an RFC822 message on standard input 👀
• then it writes that same message on standard output 💌
• except — plot twist — with ARC-Signature lines prepended onto it 👑

so the message goes in, the message comes out, and it just comes out signed. main character behaviour honestly. no cap. 🔥

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🦋 USAGE 🦋

the signing options get specified right there on the command line, like this:

arcsign selector domain privatekeyfile srv_id

and now the part you actually need to remember, bestie, because this one lowkey matters:

Note: arcsign will only use authentication results header fields with an authserv-id that matches srv_id as the input fields for the ARC chain. 💀 so if your srv_id isn't matching, she's simply not gonna look at those headers. periodt.

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👑 AUTHORS 👑

this version of arcsign was written by Brandon Long <blong@google.com> 🫶 and it's derived from dkimsign, which was written by Greg Hewgill <greg@hewgill.com> — shoutout to the ancestors fr fr 🙏

this man-page was created by Scott Kitterman <scott@kitterman.com> and is licensed under the same terms as dkimpy. 📜✨

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and that's the whole page, bestie!! 🎀 this one's from 2019-04-14, arcsign(1), version 0.9.2 — tysm for reading, go sign some messages, you're gonna do amazing 💖🦋⭐