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str👻d

@str4d.xyz

14K followers 430 following 2.8K posts

Cryptography, privacy, zero knowledge, Rust, Zcash dev, gaming, hardware hackery, art appreciation. He/him. https://str4d.xyz https://abyssdomain.expert/@str4d age18f63qx4gk8x7p4lfuwwglqcan7snvp406q5vmk26g9fmpe9c799qqzzr3w

str4d.xyz

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str👻d @str4d.xyz · Mar 5

I am a professional cryptographic engineer.

I regularly open my Calculator app to check that 32 * 8 still equals 256.

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str👻d @str4d.xyz · 4d

Huh okay, I thought the extra logic (like injecting posts from other feeds) was applied on top of a base Following feed.

str👻d @str4d.xyz · 4d

For clarity, your Content Languages setting apply client-side to every feed that you view with your client. The BlueSky-provided defaults (Following, Discover) are themselves feeds, and are filtered the same way. So if you are viewing posts at all in the client, you are using feeds.

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str👻d @str4d.xyz · 4d

I tested your feed locally and it works exactly as documented in the client's language settings. I can see this post in your feed if I either have Spanish included in my selection, or nothing selected. (So with both English and Spanish selected, I see everything.)

Screenshot of the Bluesky app's "Languages" settings page. The section "Content Languages" says "Select which languages you want your subscribed feeds to include. If none are selected, all languages will be shown."

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str👻d @str4d.xyz · 4d

No one expects the Spanish Inquisition

str👻d @str4d.xyz · 4d

Or "hat tip" in the UK

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str👻d @str4d.xyz · 4d

Guess which dev board I was referring to

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str👻d @str4d.xyz · 4d

I love spending an entire day discussing cryptography with friends 🔐💞

Lots of ideas to ponder now, and some cryptographic hardware dev boards to source...

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str👻d @str4d.xyz · 7d

Once again reminded of how much I loathe macOS, and the Terminal app within macOS specifically, and the zsh migration within the Terminal app within macOS specifically.

How does anyone operate with a PATH that is so hostile to configuration?

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str👻d @str4d.xyz · 9d

If you don't have your own domain to use for a handle, then whichever PDS you migrate to would need to be providing subdomains to you, like Bluesky provides *.bsky.social to its users. But your account can still migrate because your handle is just the current pointer to your actual did:plc identity.

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str👻d @str4d.xyz · 9d

But the ask here is not for direct IPC, but browser-mediated IPC. I don't believe any browser supports HTTP-over-Unix-socket, and there are reasonable security arguments as to why (it's treated as safer in part because of lack of browser support).

See the Firefox issue and links therein:

1688774 - Support HTTP over unix domain sockets

UNCONFIRMED (nobody) in Core - Networking. Last updated 2025-06-05.

bugzilla.mozilla.org

str👻d @str4d.xyz · 9d

Windows added support for Unix sockets in 2017!

AF_UNIX comes to Windows

Introduction: Beginning in Insider Build 17063, you’ll be able to use the unix socket (AF_UNIX) address family on Windows to communicate between Win32 processes. Unix sockets allow inter-process comm...

devblogs.microsoft.com

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str👻d @str4d.xyz · 12d

Updated my ATProto network map with new relays (hi @upcloud.com!) and more AppViews (hi Blacksky!).

My server is also seeing sufficiently high operation rates for @rocksky.app and @teal.fm that their AppViews currently show up noticeably at logarithmic scaling 📈

Bluesky network map.

There are five clusters of dots, corresponding to five kind of ATProto nodes: Personal Data Servers (PDSs) in blue, Relays in yellow, Feeds in grey, Labelers in red, and AppViews in green. The nodes operated by Bluesky PBC are in light blue.

The Relays and AppViews clusters are shown with logarithmic scaling on observed data rates. There are two large AppViews (Bluesky and Blacksky, which both listen to the Bluesky record group), but also a few smaller AppViews with sufficient sustained traffic at time of screenshot to be noticeable.

str👻d @str4d.xyz · 13d

Tired: using @tailscale.com to connect your devices in different countries so you have seamless access no matter the NAT.

Wired: using @tailscale.com to connect your devices in different rooms because you can't figure out why your wireless access point is blocking intra-LAN traffic.

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Reposted by str👻d

tobyfox @tobyfox.undertale.com · 18d

UNDERTALE 10th anniversary stream counting down now!!! Just about 45 minutes left!!

undertale.com/10/

UNDERTALE 10th Anniversary Stream Event

UNDERTALE! The RPG game where you don't have to destroy anyone.

undertale.com

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str👻d @str4d.xyz · 18d

There are two wolves inside me, and they won't stop singing:

🎤🐺 Heels, nails, blade, mascara
🔥🐺 Fit check for my napalm era

🐺🎶 Set the fuel pump, start the number two
🐺✈️ Iiiiiiii stoooooole an F16

str👻d @str4d.xyz · 18d

Multi-track continental drifting

str👻d @str4d.xyz · 19d

Finally ordered a Raspberry Pi to power the KrakenSDR I got 2 months ago.

Taking bets on whether I get it set up before December.

str👻d @str4d.xyz · 19d

Does this mean I finally need to get my Rust plc crate working? I don't wanna deal with database migrations 😭

str👻d @str4d.xyz · 19d

Oh no 🫂 He was the best boy, I was so glad to have the chance to meet him. 💔

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Reposted by str👻d

Rust Language @rust-lang.org · 20d

Rust 1.90.0 has been released! ✨🦀

This release makes LLD the default linker on x86-64 linux-gnu and adds `cargo publish --workspace` to publish an entire workspace all at once!

Check out the blog post and release notes for more: blog.rust-lang.org/2025/09/18/R...

Announcing Rust 1.90.0 | Rust Blog

Empowering everyone to build reliable and efficient software.

blog.rust-lang.org

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Reposted by str👻d

Chiitan🌈ちぃたん☆ @chiitan.love · 20d

People who criticize transgender people say there are only two genders.
But the soul has so much more individuality🏳️‍⚧️🏳️‍🌈

No matter how much my activities are restricted, super Chiitan will continue to speak out until we live in a world where everyone can freely express their love and love each other♡

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str👻d @str4d.xyz · 21d

Cross-referencing the ePrint this claims to fix:

ePrint Updates @eprint.ing.bot · Apr 10

Quantum Algorithms for Lattice Problems (Yilei Chen) ia.cr/2024/555

Abstract. We show a polynomial time quantum algorithm for solving the learning with errors problem (LWE) with certain polynomial modulus-noise ratios. Combining with the reductions from lattice problems to LWE shown by Regev [J.ACM 2009], we obtain polynomial time quantum algorithms for solving the decisional shortest vector problem (GapSVP) and the shortest independent vector problem (SIVP) for all n-dimensional lattices within approximation factors of Ω̃(n^(4.5)). Previously, no polynomial or even subexponential time quantum algorithms were known for solving GapSVP or SIVP for all lattices within any polynomial approximation factors.

To develop a quantum algorithm for solving LWE, we mainly introduce two new techniques. First, we introduce Gaussian functions with complex variances in the design of quantum algorithms. In particular, we exploit the feature of the Karst wave in the discrete Fourier transform of complex Gaussian functions. Second, we use windowed quantum Fourier transform with complex Gaussian windows, which allows us to combine the information from both time and frequency domains. Using those techniques, we first convert the LWE instance into quantum states with purely imaginary Gaussian amplitudes, then convert purely imaginary Gaussian states into classical linear equations over the LWE secret and error terms, and finally solve the linear system of equations using Gaussian elimination. This gives a polynomial time quantum algorithm for solving LWE.

str👻d @str4d.xyz · 21d

Another update: someone claims to have fixed the bug!

Deirdre Connolly¹ ² @durumcrustulum.com · 21d

not again

arxiv.org/pdf/2509.12341

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str👻d @str4d.xyz · 21d

Hoo boy

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str👻d @str4d.xyz · 21d

The Blacksky AppView doesn't show up yet because the list of AppViews, as well as every connection downstream of relays, is all hand-written by me (there's no datasource for any of it), so I need to go into the code and update the details.