<![CDATA[#ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8?]]> people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in 8?

Otherwise, could you check what's wrong with our implementation by looking at an example request, to see if anything jumps out?

https://codeberg.org/MinotaursAtWork/Dallawan/issues/1

Totally understand that troubleshooting and bughunting is work, I wish we could pay for this. Drop any donation/tip page you have and we'll try to donate what we can when we can ❤

]]>https://fedi.wiki/topic/6e70cecd-8b02-4cb8-99d6-00e71e070958/activitypub-people-we-re-failing-at-implementing-the-http-signatures-necessary-for-interop-does-anyone-know-how-one-would-do-this-in-aspnet-dotnet-8RSS for NodeTue, 25 Aug 2026 08:21:26 GMTSun, 09 Aug 2026 15:56:43 GMT60<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Fri, 14 Aug 2026 13:47:58 GMT]]>@mapache@hachyderm.io yeah I agree with this, additional test suites would have made it easier to get it working for me too, way back.

]]>https://fedi.wiki/post/https://activitypub.space/post/2356https://fedi.wiki/post/https://activitypub.space/post/2356Fri, 14 Aug 2026 13:47:58 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 17:18:21 GMT]]>@evan @mooooooo @newuser

We need more test suites! Amazing that it worked for you!

]]>https://fedi.wiki/post/https://hachyderm.io/users/mapache/statuses/117089337453996835https://fedi.wiki/post/https://hachyderm.io/users/mapache/statuses/117089337453996835Thu, 13 Aug 2026 17:18:21 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 15:08:10 GMT]]>@mooooooo @mapache @newuser HTTP Signature is finicky af. I have 3 or 4 hand-coded implementations, and I need to move on to using a library instead.

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117088825520246956https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117088825520246956Thu, 13 Aug 2026 15:08:10 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 15:06:56 GMT]]>@mooooooo @mapache @newuser Followed! Good luck in your work.

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117088820671250672https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117088820671250672Thu, 13 Aug 2026 15:06:56 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 14:22:06 GMT]]>@mooooooo@qaf.men @evan@cosocial.ca this kind of joy is why we do activitypub Dev Rel.

]]>https://fedi.wiki/post/https://activitypub.space/post/2353https://fedi.wiki/post/https://activitypub.space/post/2353Thu, 13 Aug 2026 14:22:06 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 14:01:02 GMT]]>@evan @mapache @newuser I'm going to actually cry omg

IT WAS A TYPO WHEN CREATING THE STRING TO SIGN I'M ABSOLUTELY WIGLESS

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117088561537078822https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117088561537078822Thu, 13 Aug 2026 14:01:02 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Thu, 13 Aug 2026 13:59:48 GMT]]>@evan @mapache

IT'S ALIVE: @newuser

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117088556712147596https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117088556712147596Thu, 13 Aug 2026 13:59:48 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Wed, 12 Aug 2026 20:31:40 GMT]]>@zotan @evan @mapache @julian @Interledger @mooooooo

additionally, since it may come up, i also have an implementation of object integrity proofs (the modern ld-sig replacement) over here including a fork of the c# json canonicalization library with a bit higher performance and a nuget package (hosted on codeberg instead of nuger proper, but still easier to install than the "official one") over here]]>https://fedi.wiki/post/https://not-brain.d.on-t.work/notes/apu3zy7f19apzbc8https://fedi.wiki/post/https://not-brain.d.on-t.work/notes/apu3zy7f19apzbc8Wed, 12 Aug 2026 20:31:40 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Wed, 12 Aug 2026 20:27:56 GMT]]>@kopper @evan The tag is my bad, it was the first account for “@kopper” that my server auto-completed. Will keep it in mind if it ever comes up again!

]]>https://fedi.wiki/post/https://fietkau.social/users/julian/statuses/117084420597181130https://fedi.wiki/post/https://fietkau.social/users/julian/statuses/117084420597181130Wed, 12 Aug 2026 20:27:56 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Mon, 10 Aug 2026 03:58:15 GMT]]>@mooooooo @mapache thank YOU. Your work is important to all of us. Thank you for doing it.

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117069204388907266https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117069204388907266Mon, 10 Aug 2026 03:58:15 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Mon, 10 Aug 2026 03:52:45 GMT]]>@julian @isaacschemm @evan I'll try it, thank you so much ily

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117069182756196633https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117069182756196633Mon, 10 Aug 2026 03:52:45 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Mon, 10 Aug 2026 03:52:07 GMT]]>@evan @mapache I saw it right before going to bed, I'm going to give it a shot today, thank you

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117069180242987978https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117069180242987978Mon, 10 Aug 2026 03:52:07 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 21:36:02 GMT]]>@mooooooo @mapache you saw this right?

https://github.com/Unisys/NSign

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117067701447834538https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117067701447834538Sun, 09 Aug 2026 21:36:02 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 19:05:17 GMT]]>@isaacschemm @evan@cosocial.ca according to the httpsig.org website NSign is that library.

I took a cursory look and I wasn't able to tell whether it supported cavage-12.

Which... Is highly ironic hahaha

@mooooooo@qaf.men

]]>https://fedi.wiki/post/https://activitypub.space/post/2321https://fedi.wiki/post/https://activitypub.space/post/2321Sun, 09 Aug 2026 19:05:17 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 17:24:06 GMT]]>@evan@cosocial.ca NSign is available (on NuGet, and MIT licensed) and Letterbook uses it, although I'm not sure exactly how, since I haven't looked enough at the code to really grasp the architecture.

I originally used some of Letterbook's code for draft-cavage signatures in Pandacap (my single user server) before eventually rewriting that part in F#, but I'd like to go back and take another look at some point, since Pandacap doesn't support proper RFC 9421 signatures yet.

]]>https://fedi.wiki/post/https://activitypub.space/post/2320https://fedi.wiki/post/https://activitypub.space/post/2320Sun, 09 Aug 2026 17:24:06 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 17:21:44 GMT]]>@mapache @evan (Okay, it wasn't **just** that, but at least that's corrected, I'll keep checking)

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066701519989602https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066701519989602Sun, 09 Aug 2026 17:21:44 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 16:43:26 GMT]]>@julian Do we have a library or DLL or whatevs for implementing HTTP Message Signatures? If not, can someone please take @Interledger 's money and extract their implementation into a library?

https://interledger.org/grant/open-payments-sdk

@mooooooo @mapache @zotan @kopper

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117066550889008722https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117066550889008722Sun, 09 Aug 2026 16:43:26 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 16:18:34 GMT]]>@mapache @evan Oh, wow, I had completely misunderstood the standard when it comes to how the signature header is constructed, I'll try like that, thank you so much

What I was doing was just juxtaposing the values of the original headers separated by single spaces and feeding that to the signing algorithm, I feel so dumb lol

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066453117610570https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066453117610570Sun, 09 Aug 2026 16:18:34 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 16:13:01 GMT]]>@mapache @evan Thank you so much

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066431330435198https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066431330435198Sun, 09 Aug 2026 16:13:01 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 16:06:15 GMT]]>@mooooooo I think @mapache has implemented on ? Maho, would you mind giving this team a review or some tips?

]]>https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117066404717690860https://fedi.wiki/post/https://cosocial.ca/users/evan/statuses/117066404717690860Sun, 09 Aug 2026 16:06:15 GMT<![CDATA[Reply to #ActivityPub people, we're failing at implementing the HTTP signatures necessary for interop, does anyone know how one would do this in #AspNet #dotnet 8? on Sun, 09 Aug 2026 15:57:32 GMT]]>At this point, this project is held together by the sunk cost fallacy and desperation

]]>https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066370405969426https://fedi.wiki/post/https://qaf.men/ap/users/116906449450988726/statuses/117066370405969426Sun, 09 Aug 2026 15:57:32 GMT