China’s Moon-landing Plans And Why the US Is So Worried
“We are in a 21st century space race,” U.S. Senator Ted Cruz has said. And this week CNN noted a competition that for decades loomed in the background of geopolitics “is now roaring to the forefront,” with China “demonstrating rapid advances in space technology” while the U.S. is “ratcheting up rhetoric about a looming battle for control of the cosmos.”

It’s the … ⌘ Read more

NASA Expects Chinese Crewed Mission Around the Moon In 2027
NASA Administrator Jared Isaacman says he expects China to fly taikonauts around the moon in 2027, “ratcheting up perceptions of a space race between China and the United States,” reports SpaceNews. He is using that prospect to argue for a revamped Artemis strategy and an accelerated path toward a U.S. lunar return. From the report: “The next time the w … ⌘ Read more

We cleaned up the forest today with the scouts at absolute dream weather. Blue sky, no clouds, 19°C sunshine. In the morning it was still quite chilly and windy, though. We didn’t find anything spectacular, maybe a rubber dinghy, three car tires and a broken ratchet strap are the most outstanding things to me apart from all the general rubbish, cigarettes, glass, wet wipes, etc. Still, a very fun activity. In the end we had bockwurst, grilled cheese and lye buns on the camp fire.

I then went for a quick stroll with my mate. It’s crazy how quickly the clouds moved in, 30-45 minutes tops. There will be rain in an hour. And the coming days only reach half the temps. I’m glad I took advantage of the great spring day. Haven’t seen Azabache yet and with the rain on deck, the odds are against him and me.

https://lyse.isobeef.org/waldspaziergang-2026-04-11/

👋 Looking for other interested folks to continue to evolve the development of Salty.im 🙏 I’ve been hard™ at work on the v2 branch and @doesnm.p.psf.lt@doesnm.p.psf.lt has been incredibly helpful so far. Be great ot have a few more folks to join us, some of the v2 highlights include:

• Double Ratchet by default.
  
• Group Chat (sender/client fan-out for now)
  
• Much better TUI with background agent.
  
• Mobile App coming soon™ (iOS in progress, Android next, same codebase)

FTC Ratchets Up Microsoft Probe, Queries Rivals on Cloud, AI
The US Federal Trade Commission is accelerating scrutiny of Microsoft as part of an ongoing probe into whether the company illegally monopolizes large swaths of the enterprise computing market with its cloud software and AI offerings, including Copilot. From a report: The agency has issued civil investigative demands in recent weeks to companies that compete wi … ⌘ Read more

I spent the day today integrating @xuu@txt.sour.is’s double ratcheting work and ratchet library back into the reference client/broker implementation saltyim as a v2 branch. I completely redesigned and rewrite the salty-chat TUI client as well, which now includes proper notifications and a background agent that keeps running so you never miss any messages. It all “just works”™ and I’m quite happy with the outcome! 🤩 #saltyim #revamp

ProcessOne: On Signal Protocol and Post-Quantum Ratchets

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Signal improved its protocol to prepare encrypted messaging for the quantum era.

They call the improvement “Triple Ratchet” (or SPQR = Signal Post-Quantum Ratchet).

[Signal Protocol and Post-Quantum Ratchets\
\
We are excited to announce a significant advancement in the security … ⌘ Read more

Denmark’s Government Aims To Ban Access To Social Media For Children Under 15
An anonymous reader quotes a report from the Associated Press: Denmark’s government on Friday announced an agreement to ban access to social media for anyone under 15, ratcheting up pressure on Big Tech platforms as concerns grow that kids are getting too swept up in a digitized world of harmful content and commercial int … ⌘ Read more

Signal Protocol and Post-Quantum Ratchets
Article URL: https://signal.org/blog/spqr/

Comments URL: https://news.ycombinator.com/item?id=45451527

Points: 633

# Comments: 281 ⌘ Read more

A formal analysis of Apple’s iMessage PQ3 protocol
We present the formal verification of Apple’s iMessage PQ3, a highly performant, device-to-device messaging protocol offering strong security guarantees even against an adversary with quantum computing capabilities. PQ3 leverages Apple’s identity services together with a custom, post-quantum secure initialization phase and afterwards it employs a double ratchet construction in the style of Signal, extended to provide post-quantum, … ⌘ Read more

(#2s7hrha) @eapl.me Yeah this is true. Previously RSA and AES were more common. These days Salsa and Chacha and Curve are fairly prevalent. For …
@eapl.me @eapl.me Yeah this is true. Previously RSA and AES were more common. These days Salsa and Chacha and Curve are fairly prevalent. For example all the Wireguard stuff uses Curve25519 / Ed25519 crypto. Signal uses very similar crypto too, but with some very nice double ratcheting 3DH. ⌘ Read more

@lyse@lyse.isobeef.org I have read the white papers for MLS before. I have put a lot of thought on how to do it with salty/ratchet. Its a very good tech for ensuring multiple devices can be joined to an encrypted chat. But it is bloody complicated to implement.

And to add close integration with salty/ratchet for realtime private chat

Ratchet CLI now supports salty or ratchet comms!

@prologic@twtxt.net #ratchet #lives

Muller’s Ratchet ⌘ Read more…