zooko2.bsky.social reposted
zooko2.bsky.social
Check it out! You can actually use Optical Character Recognition or an AI to decode that funny-looking sigil in this screenshot, and recover the complete 256-bit cryptographic value. With the hex code from this screenshot, you only get 40 bits. bsky.app/profile/zook...
Heh heh! I had previously asked my AI to use sigilcode for any BLAKE3 hashes that he wanted to mention to me. He just said this:
zooko2.bsky.social reposted
Check it out! You can actually use Optical Character Recognition or an AI to decode that funny-looking sigil in this screenshot, and recover the complete 256-bit cryptographic value. With the hex code from this screenshot, you only get 40 bits. bsky.app/profile/zook...
Heh heh! I had previously asked my AI to use sigilcode for any BLAKE3 hashes that he wanted to mention to me. He just said this:
zooko2.bsky.social reposted
Replying to @zooko2.bsky.social
In addition to the beauty and strangeness of it, the really cool thing is that the SHA-256 abbreviation shown there only contains 40 bits. You can't safely rely on those hex digits from that screenshot. But the sigil is 256 bits! You can securely use the code from this screenshot.
zooko2.bsky.social reposted
zooko2.bsky.social reposted
Proud to work at Shielded Labs. We never stop defending Zcash’s security. x.com/aquietinvest...
I made base-1353 encoding, so I can fit 256-bit values, like “96cca2a0c8a3263c74ef36274abf55f410d992034d16e8285811a9ad3fc59c13”, into short 26 character strings, like “ᓒᔳᣏዧᐎᑙᖜዌᙔᐸƫȶƃᒨዊጶᙵኻѫyፐᎉᑫᖫᘪᒩ”. (Also, I think these sigils are beautiful.) johnservil.github.io/sigil/play.h...
zooko2.bsky.social reposted
is this a secure private sigil?
I made base-1353 encoding, so I can fit 256-bit values, like “96cca2a0c8a3263c74ef36274abf55f410d992034d16e8285811a9ad3fc59c13”, into short 26 character strings, like “ᓒᔳᣏዧᐎᑙᖜዌᙔᐸƫȶƃᒨዊጶᙵኻѫyፐᎉᑫᖫᘪᒩ”. (Also, I think these sigils are beautiful.) johnservil.github.io/sigil/play.h...
zooko2.bsky.social reposted
zooko2.bsky.social reposted
zooko2.bsky.social reposted
This is the reason why I designed @peergos.org to dial by key. I wish atproto had adopted that, but I know there were reasons.
🚨 Six WebPKI Intermediate CAs are compromised. This is bigger than Heartbleed, but a client-side issue. Anything that verifies certificates against public roots, like most TLS clients, is/was affected. Details, live test, patched versions and workarounds at emudhra.we-have-a-problem.com Act now.
zooko2.bsky.social reposted
zooko2.bsky.social reposted
The Zcash Foundation Board of Directors has appointed David Campbell as Executive Director. Thank you, Alex Bornstein, for leading with a constant focus on bringing the Zcash ecosystem together. Welcome, David, a longtime member of this community. zfnd.org/zcash-founda...
zooko2.bsky.social reposted
zooko2.bsky.social reposted
Wake up, rub eyes, check hashsma.sh … WHOA! 😳 That’s very different than yesterday. Jbenisek/cyberaxe is killing it!
Wake up, rub eyes, check hashsma.sh … WHOA! 😳 That’s very different than yesterday. Jbenisek/cyberaxe is killing it!
zooko2.bsky.social reposted
zooko2.bsky.social reposted
ZXC: Lossless compression built for ultra-fast decode libzxc.org
zooko2.bsky.social reposted
Prompted by a thread by @zooko2.bsky.social, I wrote a blog post about iroh endpoint ids and whether they fulfil the granovetter property. TLDR, they don't. Iroh endpoint ids at this time are not secrets in the cryptographic sense. www.iroh.computer/blog/blinded...
Poseidon is open for business. Get smashing! hashsma.sh This is the variant of Poseidon used in Zcash, so we really want to see exactly how much of it can be collided! (Zcash users will be safe, regardless, btw.)
Today's update on the security margins of SHA-256, SHA3, and BLAKE3: hashsma.sh
zooko2.bsky.social reposted
If you had Zcash years ago, please read this. forum.zcashcommunity.com/t/recover-an...
zooko2.bsky.social reposted
🏛️ What should Zcash governance look like for the next decade? 🛠️ In this hands-on workshop with @alexisroussel.bsky.social and Jason McGee, small groups will build their own governance models from scratch and see how they'd hold up in the real world. 🎟️ A few places left - apply now→ zfnd.org/zcon7/
What a glowing farewell for Securities and Exchange Commissioner Hester Peirce, and well-earned: www.sec.gov/newsroom/spe...
zooko2.bsky.social reposted
zooko2.bsky.social reposted
(Update)🛡️ What technical threats should Zcash be preparing for? 🗣️ @daira.bsky.social, @defusesec.bsky.social, @zooko2.bsky.social, Dev Ojha & Arya on where Zcash's defenses stand and where more investment is needed. Moderated by Andrew Miller. 📆 Oct 27–29, 2026, Cancún Apply now: zfnd.org/zcon7/
Come one, come all to the next Zcash Crosslink Workshop! forum.zcashcommunity.com/t/crosslink-...
zooko2.bsky.social reposted
So apparently there's some app on Solana that has been giving people tokens backed by ZEC, and apparently there are tens of thousands of people who chose to receive this reward. Well now there's a whole HOWTO for those folks, thanks to bentertainer and ZecHub: zechub.wiki/using-zcash/...
Zcash ✕ Nym: forum.zcashcommunity.com/t/revised-ny...
zooko2.bsky.social reposted
zooko2.bsky.social reposted
zooko2.bsky.social reposted