rymnc

protocol eng @PrivacyEthereum

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[rymnc @_rymnc]

been cooking something for a while now

rotortree: an append only, n-ary variant of LeanIMT w/ a persistence layer

probably can only be used for 3 things right now, but was definitely fun designing + implementing it

[rymnc @_rymnc]

@alrevuelta manually writing code is artisanal now

[rymnc @_rymnc]

@nero_eth @IAmNickDodson something looks familiar here 👀

[rymnc @_rymnc]

the map matures!

[IPTF @iptf_updates]

IPTF Map v0.4.0 is out.

This release extends institutional privacy beyond financial institutions to resilience use cases for the public sector, NGOs, and civil society: petitions, humanitarian disbursement, and identity continuity.

🧵

[Vivian Plasencia @ViviPlasenciaC]

I recently created LeanIMT+, a Merkle tree construction that supports efficient membership and non-membership proofs without the overhead of Sparse Merkle Trees.

It combines LeanIMT's dynamic depth with the linked-leaf approach of Indexed Merkle Trees to reduce proof costs while maintaining efficient proofs of both inclusion and exclusion.

Read the article: https://t.co/Gks0HCh2am

[Logos Research @LogosRnD]

New paper co-authored by Logos contributor @ugursen188: coRLN, a group variant of RLN.

RLN ties one user to one secret. coRLN lets a group share one identity and stake, acting only together — for newsrooms, bridge committees, or whistleblower coalitions.

https://t.co/VkwCIHHJQT

[rymnc @_rymnc]

our team ships all the time

[IPTF @iptf_updates]

Shielding is the most practical primitive to achieve private transactions on Ethereum. Today's architectures come with a lot of trade-offs.

New IPTF writeup: Exploring Hardened Shielded Pools. An extension to our working pool that tackles on-chain state growth and private reads.

[rymnc @_rymnc]

should help biz, legal and engineers better navigate the institutional privacy space!

[IPTF @iptf_updates]

iptf [dot] ethereum [dot] org is live with a major update!

A comprehensive, navigable guide to privacy on Ethereum: for institutions deploying private infrastructure, and for the end users protected by it.

[rymnc @_rymnc]

@satorinakamoto @oskarth well the design can be extended to resolve votes too:)

[The Book of Ethereum 📘 booe.eth @Bookof_Eth]

@iptf_updates This is the kind of work that makes Ethereum irreplaceable

Not "move fast and break things"
but "build carefully so dissidents don't get killed"

Privacy isn't a feature - it's protection for the people who need it most 🙏📖

[rymnc @_rymnc]

gib keycard devkit

[IPTF @iptf_updates]

New writeup: Resilient Disbursement Rails.

Aid organizations' beneficiary databases are an operational security risk. IPTF's PoC shows how to run a disbursement program where no participant, at any step, holds a complete list of recipients.

[IPTF @iptf_updates]

This kind of thing helps a lot with legibility of privacy on chain for enterprises

Kudos to @EntEthAlliance for making it happen!

Happy for IPTF to have played a small part in making this happen

[Enterprise Ethereum Alliance | eea.eth @EntEthAlliance]

📣 The EEA Privacy Working Group is releasing its first report: "State of Privacy on Ethereum for Enterprise".

7 EEA member organizations and 1 comprehensive map of enterprise privacy on Ethereum.

More on what this means 🧵⬇️

[rymnc @_rymnc]

@arcinston no day is a good day

[rymnc @_rymnc]

taceo is mentioned as an off-the-shelf solution here for this :)

https://t.co/doMOrfVYxa

[Lukas Helminger @luhelminger]

Every passport-based identity system has the same quiet hole:

Identifier = hash(passport data, app, scope).

Which means whoever knows your passport data (yes, including the issuing government, or anyone who's ever scanned your chip) can recompute your identifier across every app you've signed into.

We close it at @TACEO_IO with a threshold-keyed salt that no single party can compute alone.

- Deterministic per app, sybil resistance preserved
- Uncomputable to outsiders, even the issuer
- Key split across an MPC network so no single node can derive it either

Already used by @worldcoin and @zkpassport. If you're hitting this, we'd love to talk.

[IPTF @iptf_updates]

Current on-chain identity breaks when the issuer does. Sanctioned, shut down, or turned adversarial; already-verified users lose the ability to prove their credentials.

This is the first post in our three-part resilience series on identity, payments, and coordination. We published a PoC that removes the issuer from the verification path entirely.

[rymnc @_rymnc]

just ship crops

[IPTF @iptf_updates]

IPTF map v0.3.0 shipped.

71 commits. 162 files changed.

New PSI patterns, composable spend and delegation primitives from EIP-8182, a post-quantum threat domain, 15 new institutional use cases, and the CROPS framework across all patterns.

Here's what landed.

[rymnc @_rymnc]

privacy doesn't have to be expensive anymore :)

[Pierre @xyz_pierre]

welcome PlasmaBlind: a new privacy L2 that ditches SNARKs altogether, with <100ms client-side zk proofs, using the blindfold scheme and a carefully designed aggregator.

uncompromising and instant privacy on *any* device.

we implemented and benchmarked the whole thing at @PrivacyEthereum and are opening it under MIT.

paper + code available at https://t.co/nW2kMCT50p

the time for a special purpose privacy L2 has come 😎

[L2BEAT 💗 @l2beat]

CHONK is a part of Barretenberg library, which also features:

➡️ UltraHonk 🦆
➡️ GoblinPlonk👺 that works with Grumpkin curve 🎃
➡️ Shplonk 💦
➡️ Oink 🐽
➡️ Shplemini 🌀
➡️ SpongeBlob DA commitment scheme 🧽 (although it’s in Noir library)

The flow of nonsensical words has no end

[IPTF @iptf_updates]

IPTF is at ETHCC in Cannes:

@oskarth at main event (Kelly stage) 1315 Wed 1st

@yanis_mezn at main event (Taylor Stage) 1515 Wed 1st and Secret Agents (Bermuda) Wed 1st

@motypes will be presenting at Blockspace Forum Cannes tomorrow Tue 31th

...and a few more event :)

[rymnc @_rymnc]

babe wake up, it's time to choose an async runtime