#rfc9421

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julian
@julian@fietkau.social · Apr 06, 2026
RE: https://mastodon.social/@bagder/116359048796181736 Could be potentially nice for fediverse server testing, as more implementations make the jump to final RFC 9421 HTTP signatures. On the flip side, ever more complex curl invocations (here: Accept header plus signature fields plus key file, presumably) suggest use of more specialized CLI tools, such as provided by @fedify@hollo.social, or at least scripts/aliases. Speaking of RFC 9421, which notable fediverse implementations can't handle it yet? Anyone keeping track? #ActivityPub #FediDev #RFC9421
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daniel:// stenberg:// @bagder@mastodon.social

RFC 9421 HTTP Message Signatures support in maybe?

https://github.com/curl/curl/pull/21239

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mradcliffe
@mradcliffe@nokoto.org · Apr 18, 2026

Re: any example of a software in node/javascript that uses the new signature standard

@gabboman@gabboman.xyz I decided to hack on this the past few nights, and came up with an experimental, backwards-compatible implementation that I created a draft pull request for @peertube/http-signature. I tried to follow the library’s coding style of the original as much as possible. The idea of backwards-compatibility is that you can drop this into an existing application and nothing will break. There are deprecation messages that may surface in logs to guide changing from using the function exports to the cavage12Draft export (and the rfc9421 export). I think the next step for anyone would be: manual...
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mradcliffe
@mradcliffe@nokoto.org · May 18, 2026

Re: Re: any example of a software in node/javascript that uses the new signature standard

When last I left off, I made a pull request to peertube/http-signature library try to help the JavaScript ecosystem reach RFC 9421 parity while being backwards-compatible with cavage-12 draft implementations. There has not been any traction on this yet. Maybe because PeerTube has abandoned its own use of the library. So our current ecosystem state is the following: PeerTube uses misskey-dev/node-http-message-signatures library and owns the defacto unmaintained peertube/http-signature library.Misskey and the rest of the ‘keyverse use peertube/http-signature library and Misskey owns the defacto...
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