PSE
@PrivacyEthereum
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PSE is a research and development lab delivering privacy to the Ethereum ecosystem.
Joined June 2021
1/ 🌱 The zkID team published OpenAC: Open Design for Transparent and Lightweight Anonymous Credentials earlier this week with a show proof time of 0.129 seconds. It describes a zero-knowledge identity construction designed to work with existing identity stacks and was purposely
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More updates, deeper dives, and Devconnect momentum coming in December. Thanks for sticking with us 🙌
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🧪 Private Reads • We launched working groups with 30+ projects across and beyond Ethereum, focused on transaction-level network privacy (Tor, mixnets) and privacy-preserving indexing. • We aligned on a guiding principle: effortless privacy, pushing complexity away from users
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🪢 Private Proving • @zkmopro shipped React Native bindings via uniffi-bindgen-react-native, unlocking seamless ZK proving on iOS & Android. The team is also exploring client-side GPU acceleration and deeper Semaphore + Noir integrations. • @tlsnotary released Alpha.13 with
eprint.iacr.org
Lattice-based key-homomorphic encodings introduced by Boneh et al.~(Eurocrypt'14)---known as BGG+ encodings---underpin many primitives, including key-policy attribute-based encryption (KP-ABE). Many...
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🏗️ Private Writes • @zkMACI (Private Governance) continued work on the State of Private Voting Report 2026 while actively supporting GG24 to strengthen private, high-impact community governance. • Plasma{Fold, Blind} finalized the draft design for PlasmaBlind, a
github.com
Institutional Privacy Map. Contribute to ethereum/iptf-map development by creating an account on GitHub.
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November flew by, and yes, this newsletter is a bit late 😅 Thanks for bearing with us. The December edition is coming soon with even more to share. Here’s a quick snapshot of what PSE teams were up to in November. Full updates by track below 👇 📜 Read the November newsletter:
pse.dev
A roundup of what PSE teams have been up to and looking ahead to Devconnect
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The sha256 benchmarks by @eth_proofs give a nice comparison of the variety of proof systems in the mix. Binius shows best prover and verifier times, but needs a workaround with its higher proof size. Barretenberg strikes a good balance with: (Source: https://t.co/W5KzSzReo6)
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We're glad that PSE's client-side proving benchmarks helps and informs our ecosystem on their choice of proving systems 🙌
@ameensol @_ArnaudS_ @oxlumi
https://t.co/gMMAU60iTG for the SHA benchmark, noir (barretenberg) is faster the larger the circuit becomes, and circom is faster for the smallest benchmark (noir has a fixed startup cost mostly independent of circuit size) for ecdsa there isn't a circom benchmark but
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Missed zkTLS Day at Devconnect or want to rewatch your favorite talks? The full playlist is now available! https://t.co/smU04213dx
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Last day to fill out the @PrivacyEthereum user survey on the current state of privacy on Ethereum. Your feedback helps us identify opportunities for improvement and development of the privacy roadmap. All responses are anonymous. Thank you 🙏 https://t.co/k6sKKXgRXE
pad.ethereum.org
CryptPad: end-to-end encrypted collaboration suite
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6/ 🙇♀️ This is very much work-in-progress. We know there are open questions around: - Circuit design & optimizations - Threat-model edge cases - Multi-VC linking - Generalised predicates If you work on ZK, identity, wallets, or policy, we’d love your review & criticism. This work
ethproofs.org
race to prove Ethereum in real-time
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5/ 🌐 Why it matters Identity rails are being standardized now (EUDI wallets, national ID stacks, institutional KYC). OpenAC is one attempt to show that privacy-preserving, ZK-based flows are compatible with the systems people already deploy.
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4/The current instantiation follows the Spartan family and relies on sumcheck and Hyrax-style Pedersen commitments under the discrete-logarithm assumption, avoiding pairing-based assumptions and any universal trusted setup.
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3/ 🧪 The wallet operates in two phases. During an offline Prepare phase, run once per credential, the wallet: 1. Verifies the Issuer’s signature using standard libraries 2. Parses and normalizes credential attributes 3. Commits to the attributes using a binding and hiding
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2/ 🔧OpenAC follows the classic issuer–holder–verifier model. Issuers remain unaware of the use of zkSNARKs; no changes to issuance pipelines or secure elements are required, and Issuers retain exclusive control over their private keys. Holders store and generate proofs
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Target acquired: Happy to share our new Client-Side Proving dashboard — a collaboration with the amazing CSP team at @PrivacyEthereum
https://t.co/5aq5nhsz6z
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Sharing our roadmap toward practical iO — pushing Ethereum closer to a truly scalable, privacy-preserving world computer (assuming the assumptions underlying our lattice-based iO hold). If you’d like to learn more about iO, come join us at our event tomorrow!
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Catch @AndyGuzmanEth with the closing talk at Privacy Stack on the Ethereum Privacy Roadmap @EFDevcon Yellow pavilion, XL stage or watch live
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Don't miss: Ethereum Privacy Stack by @web3privacy & @PrivacyEthereum. Catch the lineup of speakers talking all things privacy & head to the XL Yellow Pavilion at La Rural to join the conversation. 11:00 to 18:00
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