Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Matthew Garrett @mjg59@nondeterministic.computer

2/17/2026, 12:42:42 AM

Public

You all seem like the sort of people who might know the answer to this, so: any idea why https://datatracker.ietf.org/doc/html/draft-balfanz-tls-obc-01 never went anywhere? I independently reinvented it yesterday and now I'm curious what I'm utterly missing that left smarter people than me deciding it wasn't a good idea 14 years ago

TLS Origin-Bound Certificates

This document specifies a Transport Layer Security (TLS) extension and associated semantics that allow clients and servers to negotiate the use of origin-bound, self-signed certificates for TLS client authentication.

datatracker.ietf.org · IETF Datatracker

rsalz @rsalz@ioc.exchange

2/17/2026, 9:12:06 PM

Public

@mjg59Matthew Garrett Look at https://mailarchive.ietf.org/arch/msg/tls/6O8UTvxsPV85iaKITi_wHQgur-A/ to see some problems Google identified.

[TLS] Update on Origin-Bound Certificates: Now called "Channel ID"

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