I was not suggesting to that everyone need to setup a working webfinger endpoint, but that we take the format of nick+(sub)domain as base for generating the hashed together with the message date and content.

If we omit the protocol prefix from the way we do things now will that not solve most of the problems? In the case of gemini://gemini.ctrl-c.club/~nristen/twtxt.txt they also have a working twtxt.txt at https://ctrl-c.club/~nristen/twtxt.txt … damn I just notice the gemini. subdomain.

Okay what about defining a prefers protocol as part of the hash schema? so 1: https , 2: http 3: gemini 4: gopher ?

@sorenpeter@darch.dk There was a client that would generate a unique hash for each twt. It didn’t get wide adoption.

@sorenpeter@darch.dk There was a client that would generate a unique hash for each twt. It didn’t get wide adoption.

So this is a great thread. I have been thinking about this too.. and what if we are coming at it from the wrong direction? Identity being tied to a given URL has always been a pain point. If i get a new URL its almost as if i have a new identity because not only am I serving at a new location but all my previous communications are broken because the hashes are all wrong.

What if instead we used this idea of signatures to thread the URLs together into one identity? We keep the URL to Hash in place. Changing that now is basically a no go. But we can create a signature chain that can link identities together. So if i move to a new URL i update the chain hosted by my primary identity to include the new URL. If i have an archived feed that the old URL is now dead, we can point to where it is now hosted and use the current convention of hashing based on the first url:

The signature chain can also be used to rotate to new keys over time. Just sign in a new key or revoke an old one. The prior signatures remain valid within the scope of time the signatures were made and the keys were active.

The signature file can be hosted anywhere as long as it can be fetched by a reasonable protocol. So say we could use a webfinger that directs to the signature file? you have an identity like frank@beans.co that will discover a feed at some URL and a signature chain at another URL. Maybe even include the most recent signing key?

From there the client can auto discover old feeds to link them together into one complete timeline. And the signatures can validate that its all correct.

I like the idea of maybe putting the chain in the feed preamble and keeping the single self contained file.. but wonder if that would cause lots of clutter? The signature chain would be something like a log with what is changing (new key, revoke, add url) and a signature of the change + the previous signature.

# chain: ADDKEY kex14zwrx68cfkg28kjdstvcw4pslazwtgyeueqlg6z7y3f85h29crjsgfmu0w 
# sig: BEGIN SALTPACK SIGNED MESSAGE. ... 
# chain: ADDURL https://txt.sour.is/user/xuu
# sig: BEGIN SALTPACK SIGNED MESSAGE. ...
# chain: REVKEY kex14zwrx68cfkg28kjdstvcw4pslazwtgyeueqlg6z7y3f85h29crjsgfmu0w
# sig: ...

So this is a great thread. I have been thinking about this too.. and what if we are coming at it from the wrong direction? Identity being tied to a given URL has always been a pain point. If i get a new URL its almost as if i have a new identity because not only am I serving at a new location but all my previous communications are broken because the hashes are all wrong.

What if instead we used this idea of signatures to thread the URLs together into one identity? We keep the URL to Hash in place. Changing that now is basically a no go. But we can create a signature chain that can link identities together. So if i move to a new URL i update the chain hosted by my primary identity to include the new URL. If i have an archived feed that the old URL is now dead, we can point to where it is now hosted and use the current convention of hashing based on the first url:

The signature chain can also be used to rotate to new keys over time. Just sign in a new key or revoke an old one. The prior signatures remain valid within the scope of time the signatures were made and the keys were active.

The signature file can be hosted anywhere as long as it can be fetched by a reasonable protocol. So say we could use a webfinger that directs to the signature file? you have an identity like frank@beans.co that will discover a feed at some URL and a signature chain at another URL. Maybe even include the most recent signing key?

From there the client can auto discover old feeds to link them together into one complete timeline. And the signatures can validate that its all correct.

I like the idea of maybe putting the chain in the feed preamble and keeping the single self contained file.. but wonder if that would cause lots of clutter? The signature chain would be something like a log with what is changing (new key, revoke, add url) and a signature of the change + the previous signature.

# chain: ADDKEY kex14zwrx68cfkg28kjdstvcw4pslazwtgyeueqlg6z7y3f85h29crjsgfmu0w 
# sig: BEGIN SALTPACK SIGNED MESSAGE. ... 
# chain: ADDURL https://txt.sour.is/user/xuu
# sig: BEGIN SALTPACK SIGNED MESSAGE. ...
# chain: REVKEY kex14zwrx68cfkg28kjdstvcw4pslazwtgyeueqlg6z7y3f85h29crjsgfmu0w
# sig: ...

@mckinley@twtxt.net To answer some of your questions:

Are SSH signatures standardized and are there robust software libraries that can handle them? We’ll need a library in at least Python and Go to provide verified feed support with the currently used clients.

We already have this. Ed25519 libraries exist for all major languages. Aside from using ssh-keygen -Y sign and ssh-keygen -Y verify, you can also use the salty CLI itself (https://git.mills.io/prologic/salty), and I’m sure there are other command-line tools that could be used too.

If we all implemented this, every twt hash would suddenly change and every conversation thread we’ve ever had would at least lose its opening post.

Yes. This would happen, so we’d have to make a decision around this, either a) a cut-off point or b) some way to progressively transition.

how little data is needed for generating the hashes? Instead of the full URL, can we makedo with just the domain (example.net) so we avoid the conflicts with gemini://, https:// and only http:// (like in my own twtxt.txt) or construct something like like a webfinger id nick@domain (also used by mastodon etc.) from the domain and nick if there, else use domain as nick as well

@lyse@lyse.isobeef.org This looks like a nice way to do it.

Another thought: if clients can’t agree on the url (for example, if we switch to this new way, but some old clients still do it the old way), that could be mitigated by computing many hashes for each twt: one for every url in the feed. So, if a feed has three URLs, every twt is associated with three hashes when it comes time to put threads together.

A client stills need to choose one url to use for the hash when composing a reply, but this might add some breathing room if there’s a period when clients are doing different things.

(From what I understand of jenny, this would be difficult to implement there since each pseudo-email can only have one msgid to match to the in-reply-to headers. I don’t know about other clients.)

@falsifian@www.falsifian.org In my opinion it was a mistake that we defined the first url field in the feed to define the URL for hashing. It should have been the last encountered one. Then, assuming append-style feeds, you could override the old URL with a new one from a certain point on:

# url = https://example.com/alias/txtxt.txt
# url = https://example.com/initial/twtxt.txt
<message 1 uses the initial URL>
<message 2 uses the initial URL, too>
# url = https://example.com/new/twtxt.txt
<message 3 uses the new URL>
# url = https://example.com/brand-new/twtxt.txt
<message 4 uses the brand new URL>

In theory, the same could be done for prepend-style feeds. They do exist, I’ve come around them. The parser would just have to calculate the hashes afterwards and not immediately.

@movq@www.uninformativ.de Another idea: just hash the feed url and time, without the message content. And don’t twt more than once per second.

Maybe you could even just use the time, and rely on @-mentions to disambiguate. Not sure how that would work out.

Though I kind of like the idea of twts being immutable. At least, it’s clear which version of a twt you’re replying to (assuming nobody is engineering hash collisions).

On the Subject of Feed Identities; I propose the following:

1. Generate a Private/Public ED25519 key pair
   
2. Use this key pair to sign your Twtxt feed
   
3. Use it as your feed’s identity in place of # url = as # key = ...
   

For example:

$ ssh-keygen -f prologic@twtxt.net
$ ssh-keygen -Y sign -n prologic@twtxt.net -f prologic@twtxt.net twtxt.txt

And your feed would looke like:

# nick        = prologic
# key         = SHA256:23OiSfuPC4zT0lVh1Y+XKh+KjP59brhZfxFHIYZkbZs
# sig         = twtxt.txt.sig
# prev        = j6bmlgq twtxt.txt/1
# avatar      = https://twtxt.net/user/prologic/avatar#gdoicerjkh3nynyxnxawwwkearr4qllkoevtwb3req4hojx5z43q
# description = "Problems are Solved by Method" 🇦🇺👨‍💻👨‍🦯🏹♔ 🏓⚯ 👨‍👩‍👧‍👧🛥 -- James Mills (operator of twtxt.net / creator of Yarn.social 🧶)

2024-06-14T18:22:17Z	(#nef6byq) @<bender https://twtxt.net/user/bender/twtxt.txt>  Hehe thanks! 😅 Still gotta sort out some other bugs, but that's tomorrows job 🤞
...

Twt Hash extension would change of course to use a feed’s ED25519 public key fingerprint.

@bender@twtxt.net Sorry, trust was the wrong word. Trust as in, you do not have to check with anything or anyone that the hash is valid. You can verify the hash is valid by recomputing the hash from the content of what it points to, etc.

@movq@www.uninformativ.de @prologic@twtxt.net Another option would be: when you edit a twt, prefix the new one with (#[old hash]) and some indication that it’s an edited version of the original tweet with that hash. E.g. if the hash used to be abcd123, the new version should start “(#abcd123) (redit)”.

What I like about this is that clients that don’t know this convention will still stick it in the same thread. And I feel it’s in the spirit of the old pre-hash (subject) convention, though that’s before my time.

I guess it may not work when the edited twt itself is a reply, and there are replies to it. Maybe that could be solved by letting twts have more than one (subject) prefix.

But the great thing about the current system is that nobody can spoof message IDs.

I don’t think twtxt hashes are long enough to prevent spoofing.

All this hash breakage made me wonder if we should try to introduce “message IDs” after all. 😅

But the great thing about the current system is that nobody can spoof message IDs. 🤔 When you think about it, message IDs in e-mails only work because (almost) everybody plays fair. Nothing stops me from using the same Message-ID header in each and every mail, that would break e-mail threading all the time.

In Yarn, twt hashes are derived from twt content and feed metadata. That is pretty elegant and I’d hate see us lose that property.

If we wanted to allow editing twts, we could do something like this:

2024-09-05T13:37:40+00:00   (~mp6ox4a) Hello world!

Here, mp6ox4a would be a “partial hash”: To get the actual hash of this twt, you’d concatenate the feed’s URL and mp6ox4a and get, say, hlnw5ha. (Pretty similar to the current system.) When people reply to this twt, they would have to do this:

2024-09-05T14:57:14+00:00	(~bpt74ka) (<a href="https://txt.sour.is/search?q=%23hlnw5ha">#hlnw5ha</a>) Yes, hello!

That second twt has a partial hash of bpt74ka and is a reply to the full hash hlnw5ha. The author of the “Hello world!” twt could then edit their twt and change it to 2024-09-05T13:37:40+00:00 (~mp6ox4a) Hello friends! or whatever. Threading wouldn’t break.

Would this be worth it? It’s certainly not backwards-compatible. 😂

@prologic@twtxt.net One of your twts begins with (#st3wsda): https://twtxt.net/twt/bot5z4q

Based on the twtxt.net web UI, it seems to be in reply to a twt by @cuaxolotl@sunshinegardens.org which begins “I’ve been sketching out…”.

But jenny thinks the hash of that twt is 6mdqxrq. At least, there’s a very twt in their feed with that hash that has the same text as appears on yarn.social (except with ‘ instead of ’).

Based on this, it appears jenny and yarnd disagree about the hash of the twt, or perhaps the twt was edited (though I can’t see any difference, assuming ’ vs ’ is just a rendering choice).

@prologic@twtxt.net How does yarn.social’s API fix the problem of centralization? I still need to know whose API to use.

Say I see a twt beginning (#hash) and I want to look up the start of the thread. Is the idea that if that twt is hosted by a a yarn.social pod, it is likely to know the thread start, so I should query that particular pod for the hash? But what if no yarn.social pods are involved?

The community seems small enough that a registry server should be able to keep up, and I can have a couple of others as backups. Or I could crawl the list of feeds followed by whoever emitted the twt that prompted my query.

I have successfully used registry servers a little bit, e.g. to find a feed that mentioned a tag I was interested in. Was even thinking of making my own, if I get bored of my too many other projects :-)

@movq@www.uninformativ.de Thanks, it works!

But when I tried it out on a twt from @prologic@twtxt.net, I discovered jenny and yarn.social seem to disagree about the hash of this twt: https://twtxt.net/twt/st3wsda . jenny assigned it a hash of 6mdqxrq but the URL and prologic’s reply suggest yarn.social thinks the hash is st3wsda. (And as a result, jenny –fetch-context didn’t work on prologic’s twt.)

Because I saw the nick on movq (@prologic@twtxt.net, can’t mention anyone outside this pod, by the way), I looked the user up: https://tilde.pt/~marado/twtxt.txt. I wonder if the “hashes” they are using will work out of the box with jenny.

Talking about jenny, going to play with the latest now. Tata! :-)

@falsifian@www.falsifian.org @bender@twtxt.net I pushed an alternative implementation to the fetch-context branch. This integrates the whole thing into mutt/jenny.

You will want to configure a new mutt hotkey, similar to the “reply” hotkey:

macro index,pager <esc>C "\
<enter-command> set my_pipe_decode=\$pipe_decode nopipe_decode<Enter>\
<pipe-message> jenny -c<Enter>\
<enter-command> set pipe_decode=\$my_pipe_decode; unset my_pipe_decode<Enter>" \
"Try to fetch context of current twt, like a missing root twt"

This pipes the mail to jenny -c. jenny will try to find the thread hash and the URL and then fetch it. (If there’s no URL or if the specific twt cannot be found in that particular feed, it could query a Yarn pod. That is not yet implemented, though.)

The whole thing looks like this:

https://movq.de/v/0d0e76a180/jenny.mp4

In other words, when there’s a missing root twt, you press a hotkey to fetch it, done.

I think I like this version better. 🤔

(This needs a lot of testing. 😆)

@prologic@twtxt.net Yes, fetching the twt by hash from some service could be a good alternative, in case the twt I have does not @-mention the source. (Besides yarnd, maybe this should be part of the registry API? I don’t see fetch-by-hash in the registry API docs.)

@movq@www.uninformativ.de you said you liked seeing the hash (which is a fair choice!). All I am asking is for a reconsideration as a user configurable feature. ;-) It looks redundant, in my opinion.

@movq@www.uninformativ.de, that would be a nice addition. :-) I would also love the ability to hide/not show the hash when reading twtxts (after all, that’s on the header on each “email”). Could that be added as a user configurable toggle?

A equivalent yarnc debug <url> only sees the 2nd hash

Hey @sorenpeter@darch.dk, I’m sorry to tell you, but the prev field in your feed’s headers is invalid. 😅

First, it doesn’t include the hash of the last twt in the archive. Second, and that’s probably more important, it forms an infinite loop: The prev field of your main feed specifies http://darch.dk/twtxt-archive.txt and that file then again specifies http://darch.dk/twtxt-archive.txt. Some clients might choke on this, mine for example. 😂 I’ll push a fix soon, though.

For reference, the prev field is described here: https://dev.twtxt.net/doc/archivefeedsextension.html

password is generated using caddy hash-password

password is generated using caddy hash-password

yarnd does not do auto discovery via webfinger though.. i cant put @username and have it fetch the feed url from webfinger. to fully make feeds portable. would also need to be able to use that for hashing.

yarnd does not do auto discovery via webfinger though.. i cant put @username and have it fetch the feed url from webfinger. to fully make feeds portable. would also need to be able to use that for hashing.

@sorenpeter@darch.dk this makes sense as a quote twt that references a direct URL. If we go back to how it developed on twitter originally it was RT @nick: original text because it contained the original text the twitter algorithm would boost that text into trending.

i like the format (#hash) @<nick url> > "Quoted text"\nThen a comment
as it preserves the human read able. and has the hash for linking to the yarn. The comment part could be optional for just boosting the twt.

The only issue i think i would have would be that that yarn could then become a mess of repeated quotes. Unless the client knows to interpret them as multiple users have reposted/boosted the thread.

The format is also how iphone does reactions to SMS messages with +number liked: original SMS

@sorenpeter@darch.dk this makes sense as a quote twt that references a direct URL. If we go back to how it developed on twitter originally it was RT @nick: original text because it contained the original text the twitter algorithm would boost that text into trending.

i like the format (#hash) @<nick url> > "Quoted text"\nThen a comment
as it preserves the human read able. and has the hash for linking to the yarn. The comment part could be optional for just boosting the twt.

The only issue i think i would have would be that that yarn could then become a mess of repeated quotes. Unless the client knows to interpret them as multiple users have reposted/boosted the thread.

The format is also how iphone does reactions to SMS messages with +number liked: original SMS

Python Hash Sets Explained & Demonstrated - Computerphile ⌘ Read more

@prologic@twtxt.net Does putting the hash in my reply work?

@prologic@twtxt.net I’ve even added the twthash message hash to my Twtxt bash CLI script so I can properly answer here.

@prologic@twtxt.net was this in reply to a different thread? Or maybe a hash collision?

@prologic@twtxt.net was this in reply to a different thread? Or maybe a hash collision?

Started with

Image

I’m not super a fan of using json. I feel we could still use text as the medium. Maybe a modified version to fix any weakness.

What if instead of signing each twt individually we generated a merkle tree using the twt hashes? Then a signature of the root hash. This would ensure the full stream of twts are intact with a minimal overhead. With the added bonus of helping clients identify missing twts when syncing/gossiping.

Have two endpoints. One as the webfinger to link profile details and avatar like you posted. And the signature for the merkleroot twt. And the other a pageable stream of twts. Or individual twts/merkle branch to incrementally access twt feeds.

I’m not super a fan of using json. I feel we could still use text as the medium. Maybe a modified version to fix any weakness.

What if instead of signing each twt individually we generated a merkle tree using the twt hashes? Then a signature of the root hash. This would ensure the full stream of twts are intact with a minimal overhead. With the added bonus of helping clients identify missing twts when syncing/gossiping.

Have two endpoints. One as the webfinger to link profile details and avatar like you posted. And the signature for the merkleroot twt. And the other a pageable stream of twts. Or individual twts/merkle branch to incrementally access twt feeds.

💡 Quick ‘n Dirty prototype Yarn.social protocol/spec:

If we were to decide to write a new spec/protocol, what would it look like?

Here’s my rough draft (back of paper napkin idea):

• Feeds are JSON file(s) fetchable by standard HTTP clients over TLS
  
• WebFinger is used at the root of a user’s domain (or multi-user) lookup. e.g: prologic@mills.io -> https://yarn.mills.io/~prologic.json
  
• Feeds contain similar metadata that we’re familiar with: Nick, Avatar, Description, etc
  
• Feed items are signed with a ED25519 private key. That is all “posts” are cryptographically signed.
  
• Feed items continue to use content-addressing, but use the full Blake2b Base64 encoded hash.
  
• Edited feed items produce an “Edited” item so that clients can easily follow Edits.
  
• Deleted feed items produced a “Deleted” item so that clients can easily delete cached items.
  

#Yarn.social #Protocol #Ideas

Update on the future stability of source code archives and hashes
A look at what happened on January 30, what measures we’re putting in place to prevent surprises, and how we’ll handle future changes. ⌘ Read more

@prologic@twtxt.net: I understand the benefits of using hashes, it’s much easier to implement client applications (at the expense of ease of use without the proper client). I must say that I like the way the metadata extension is done. Simple and elegant! It’s hard to design simple things!

I have submitted this to be used as the hash tooling for Yarn. See it as a good example on using this in a production environment!

https://git.mills.io/yarnsocial/yarn/pulls/1095

I have submitted this to be used as the hash tooling for Yarn. See it as a good example on using this in a production environment!

https://git.mills.io/yarnsocial/yarn/pulls/1095

Logged in using new argon2i password hash!

Logged in using new argon2i password hash!

Circling back to the IsPreferred method. A hasher can define its own IsPreferred method that will be called to check if the current hash meets the complexity requirements. This is good for updating the password hashes to be more secure over time.

func (p *Passwd) IsPreferred(hash string) bool {
	_, algo := p.getAlgo(hash)
	if algo != nil && algo == p.d {

		// if the algorithm defines its own check for preference.
		if ck, ok := algo.(interface{ IsPreferred(string) bool }); ok {
			return ck.IsPreferred(hash)
		}

		return true
	}
	return false
}

https://github.com/sour-is/go-passwd/blob/main/passwd.go#L62-L74

example: https://github.com/sour-is/go-passwd/blob/main/pkg/argon2/argon2.go#L104-L133

Circling back to the IsPreferred method. A hasher can define its own IsPreferred method that will be called to check if the current hash meets the complexity requirements. This is good for updating the password hashes to be more secure over time.

func (p *Passwd) IsPreferred(hash string) bool {
	_, algo := p.getAlgo(hash)
	if algo != nil && algo == p.d {

		// if the algorithm defines its own check for preference.
		if ck, ok := algo.(interface{ IsPreferred(string) bool }); ok {
			return ck.IsPreferred(hash)
		}

		return true
	}
	return false
}

https://github.com/sour-is/go-passwd/blob/main/passwd.go#L62-L74

example: https://github.com/sour-is/go-passwd/blob/main/pkg/argon2/argon2.go#L104-L133

Hold up now, that example hash doesn’t have a $ prefix!

Well for this there is the option for a hash type to set itself as a fall through if a matching hash doesn’t exist. This is good for legacy password types that don’t follow the convention.

func (p *plainPasswd) ApplyPasswd(passwd *passwd.Passwd) {
	passwd.Register("plain", p)
	passwd.SetFallthrough(p)
}

https://github.com/sour-is/go-passwd/blob/main/passwd_test.go#L28-L31

Hold up now, that example hash doesn’t have a $ prefix!

Well for this there is the option for a hash type to set itself as a fall through if a matching hash doesn’t exist. This is good for legacy password types that don’t follow the convention.

func (p *plainPasswd) ApplyPasswd(passwd *passwd.Passwd) {
	passwd.Register("plain", p)
	passwd.SetFallthrough(p)
}

https://github.com/sour-is/go-passwd/blob/main/passwd_test.go#L28-L31

Here is an example of usage:

func Example() {
	pass := "my_pass"
	hash := "my_pass"

	pwd := passwd.New(
		&unix.MD5{}, // first is preferred type.
		&plainPasswd{},
	)

	_, err := pwd.Passwd(pass, hash)
	if err != nil {
		fmt.Println("fail: ", err)
	}

	// Check if we want to update.
	if !pwd.IsPreferred(hash) {
		newHash, err := pwd.Passwd(pass, "")
		if err != nil {
			fmt.Println("fail: ", err)
		}

		fmt.Println("new hash:", newHash)
	}

	// Output:
	//  new hash: $1$81ed91e1131a3a5a50d8a68e8ef85fa0
}

This shows how one would set a preferred hashing type and if the current version of ones password is not the preferred type updates it to enhance the security of the hashed password when someone logs in.

https://github.com/sour-is/go-passwd/blob/main/passwd_test.go#L33-L59

Here is an example of usage:

func Example() {
	pass := "my_pass"
	hash := "my_pass"

	pwd := passwd.New(
		&unix.MD5{}, // first is preferred type.
		&plainPasswd{},
	)

	_, err := pwd.Passwd(pass, hash)
	if err != nil {
		fmt.Println("fail: ", err)
	}

	// Check if we want to update.
	if !pwd.IsPreferred(hash) {
		newHash, err := pwd.Passwd(pass, "")
		if err != nil {
			fmt.Println("fail: ", err)
		}

		fmt.Println("new hash:", newHash)
	}

	// Output:
	//  new hash: $1$81ed91e1131a3a5a50d8a68e8ef85fa0
}

This shows how one would set a preferred hashing type and if the current version of ones password is not the preferred type updates it to enhance the security of the hashed password when someone logs in.

https://github.com/sour-is/go-passwd/blob/main/passwd_test.go#L33-L59

I made a thing. Its a multi password type checker. Using the PHC string format we can identify a password hashing format from the prefix $name$ and then dispatch the hashing or checking to its specific format.

I made a thing. Its a multi password type checker. Using the PHC string format we can identify a password hashing format from the prefix $name$ and then dispatch the hashing or checking to its specific format.

Tell me you write go like javascript without telling me you write go like javascript:

import "runtime/debug"

var Commit = func() string {
  if info, ok := debug.ReadBuildInfo(); ok {
    for _, setting := range info.Settings {
      if setting.Key == "vcs.revision" {
        return setting.Value
      }
    }
  }

  return "" 
}()

https://developers.redhat.com/articles/2022/11/14/3-ways-embed-commit-hash-go-programs#3__using_runtime_debug_package

Tell me you write go like javascript without telling me you write go like javascript:

import "runtime/debug"

var Commit = func() string {
  if info, ok := debug.ReadBuildInfo(); ok {
    for _, setting := range info.Settings {
      if setting.Key == "vcs.revision" {
        return setting.Value
      }
    }
  }

  return "" 
}()

https://developers.redhat.com/articles/2022/11/14/3-ways-embed-commit-hash-go-programs#3__using_runtime_debug_package

@movq@www.uninformativ.de, any plans still to clean up the hash from the twtxt’s body? Maybe a Festivus gift? You know, “for the rest of us”. :-D

@jason@jasonsanta.xyz / @movq@www.uninformativ.de Help me debug something I just observed here… @jason@jasonsanta.xyz posted a Twt (https://twtxt.net/twt/4cgtisa) with raw line of (from his feed):

2022-09-03T03:40:19Z	(#ohihfkq) @<maya https://maya.land/assets/twtxt.txt> you got starlink?

Basically replying to “something” that hashed to #ohihfkq

However #ohihfkq appears nowhere that I can find. I know this can sometimes happen due to edits, or deletes, so just curious to see what happened here. Also @jason@jasonsanta.xyz, @maya@maya.land as far as many of us that have been using Twtxt/Yarn over the years have come to understand that she is basically a 1-way poster, posts to Mastodon and mirrors her posts to a Twtxt feed, but never responds to anyone or anything 😅 Just FYI 🤗

Dino: Stateless File Sharing: Base implementation
The last few weeks were quite busy for me, but there was also a lot of progress.
I’m happy to say that the base of stateless file sharing is implemented and working.
Let’s explore some of the more interesting topics.

File hashes have some practical applications, such as file validation and duplication detection.
As such, they are part of the [metadata element](https://xmpp.org/extensio … ⌘ Read more

@movq@www.uninformativ.de was the request to remove the hash (subject) from showing on twts discarded? I don’t see it on the TODO, so I am curious. Was it something you decided was not worth investing time on?

new blog post hashing out my personal good, bad, and ugly of 2021

@movq@www.uninformativ.de, is removing the hash from the body of the twt on the TODO? I read it, but I am unsure if it is there already, or not. 🙈 Sorry if it is, and I failed to spot it!

@movq@www.uninformativ.de You can always use a 5GB video file if the UI hashes it with SHA512 before posting to the server.

@movq@www.uninformativ.de You can always use a 5GB video file if the UI hashes it with SHA512 before posting to the server.

@movq@www.uninformativ.de
With those two (Message-ID, and In-Reply-To) the hashing could become superfluous, and no longer needed. I would vote for that!

I am noticing that Yarn doesn’t treat “outside” (that is, twts coming from a client other than Yarn) twts hashes right. Two examples:

• https://twtxt.net/twt/mwtnrna
  
• https://twtxt.net/twt/fl5dooq
  

There are many more, but those two will give you the gist. Yarn links the hash to the poster’s twtxt.txt, so conversation matching will not work.

A screenshot of a very tiny c program written on System7

I’ve got to use macOS by nature of my work. Lately I’m increasingly down on this. Here I will not re-hash anything about the current state of Apple’s hardware and software ecosystem. I don’t care.

Wanting to take a trip down nostolgia lane, however (to when I was 2 years old) I thought I’d install Mac OS System 7. What follows is a quick guide for doing the sa … ⌘ Read more

So I should really try setting up a Restic repo on an IPFS/IPNS hash.

No, I’m still doing them manually. 🤣🤦🏻 But I do think they are a good idea and will be adding them, I just haven’t gotten around to finding a compatible implementation of the hash yet.

@prologic@twtxt.net @anth Sounds like a good idea. The hash to conv/search url should stay local to a pod.

@prologic@twtxt.net @anth Sounds like a good idea. The hash to conv/search url should stay local to a pod.

@movq@www.uninformativ.de No argument that threading is an improvement. But I think (#hash) does that, and I think figuring out how to search should mostly be up to the client.

@prologic@twtxt.net i think i finally suss’d out my hash issue.. now to figure out why im losing avatars on restart.

@prologic@twtxt.net i think i finally suss’d out my hash issue.. now to figure out why im losing avatars on restart.

Okay, a bit better: it now preserves the author, although it prints a hash right now. Tomorrow’s problem.

@prologic@twtxt.net yeah it reads a seed file. I’m using mine. it scans for any mention links and then scans them recursively. it reads from http/s or gopher. i don’t have much of a db yet.. it just writes to disk the feed and checks modified dates.. but I will add a db that has hashs/mentions/subjects and such.

@prologic@twtxt.net yeah it reads a seed file. I’m using mine. it scans for any mention links and then scans them recursively. it reads from http/s or gopher. i don’t have much of a db yet.. it just writes to disk the feed and checks modified dates.. but I will add a db that has hashs/mentions/subjects and such.

@prologic@twtxt.net do you have any info on how the ‘!’ tags are supposed to work? are they just a different kind of hash tag?

@prologic@twtxt.net do you have any info on how the ‘!’ tags are supposed to work? are they just a different kind of hash tag?

@prologic@twtxt.net just an off the wall question about hashes. why not use the time+message as it was in the original twtxt.txt file? is it because it’s just not store anyplace?

also how set in stone is using user+url? vs user@domain? the latter would mean the url could change without invalidating the hash.

@prologic@twtxt.net just an off the wall question about hashes. why not use the time+message as it was in the original twtxt.txt file? is it because it’s just not store anyplace?

also how set in stone is using user+url? vs user@domain? the latter would mean the url could change without invalidating the hash.

@prologic@twtxt.net Web Key Directory: a way to self host your public key. instead of using a central system like pgp.mit.net or OpenPGP.org you have your key on a server you own.

it takes an email@address.com hashes the part before the @ and turns it into [openpgpkey.]address.com/.well-known/openpgpkey[/address.com]/<hash>

@prologic@twtxt.net Web Key Directory: a way to self host your public key. instead of using a central system like pgp.mit.net or OpenPGP.org you have your key on a server you own.

it takes an email@address.com hashes the part before the @ and turns it into [openpgpkey.]address.com/.well-known/openpgpkey[/address.com]/<hash>

@prologic@twtxt.net huh.. true.. the email is md5/sha256 before storing.. if twtxt acted as provider you would store that hash and point the SRV record to the pod. .. to act as a client it would need to store the hash and the server that hosts the image.

@prologic@twtxt.net huh.. true.. the email is md5/sha256 before storing.. if twtxt acted as provider you would store that hash and point the SRV record to the pod. .. to act as a client it would need to store the hash and the server that hosts the image.

Argon2 Password Hashing ⌘ Read more…

New repository: aquilax/hash-identifier-dart - Dart library for identifying different hashes

New repository: aquilax/hash-identifier - Go package to identify different hashes

Beating hash tables with trees? The ART-ful radix trie https://www.the-paper-trail.org/post/art-paper-notes/

@kas@enotty.dk to (1) he explained that phone numbers are too predictable to have any advantage by hashing and I don’t understand (2) as this might be a step to increase the xmpp user base.

Prospecting for Hash Functions « null program https://nullprogram.com/blog/2018/07/31/

Fibonacci Hashing: The Optimization that the World Forgot (or: a Better Alternative to Integer Modulo) | Probably Dance https://probablydance.com/2018/06/16/fibonacci-hashing-the-optimization-that-the-world-forgot-or-a-better-alternative-to-integer-modulo/

A new fast hash table in response to Google’s new fast hash table | Probably Dance https://probablydance.com/2018/05/28/a-new-fast-hash-table-in-response-to-googles-new-fast-hash-table/

Bad idea of the day: A browser extension that links everything in your browser cache with a fake file whose name is a hash of that item, serves those fake files over bittorrent, and, for all URLs whose expiration date is in the future, keeps a distributed table of URL to hash & attempts to fetch from bittorrent before from http

The False Allure of Hashing for Anonymization https://gravitational.com/blog/hashing-for-anonymization/

Generating a SHA256 HMAC Hash ⌘ Read more…

Bad idea of the day: an extension that renders every word in a font chosen based on the hash of that word

Bad idea of the day: Instead of ads mining bitcoins in your browser, they run IPFS nodes and pin arbitrary hashes in browser persistent storage then store them.

Too Many Requests https://www.reddit.com/r/ProgrammerHumor/comments/78aa07/reddit_host_a_joke_etcpasswd_with_hashes_for/dosn53u/?context=1