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Henry de Valence

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Posts

Numinex

Stepping down from Penumbra Labs

Gradual Dutch Auctions on Penumbra

Shielded Staking on Penumbra

Shielded Upgradability

Bringing Shielded Transactions to the Web

Interchain Privacy Is Here

Penumbra's DEX Arrives From The Future

Penumbra Winter 2022 Update

Penumbra Testnet 38: Kalyke

Penumbra Testnet 29: Shielded Swaps Have Arrived

Penumbra Summer 2022 Update

Testnet #4: Shielded Staking Is Here

Public Testnet #1: "Valetudo"

How We're Building Penumbra

Penumbra Labs Raises Seed Round To Build Private, Decentralized Exchange

It's 255:19AM. Do you know what your validation criteria are?

Private Contact Tracing Protocols Compared: DP-3T and CEN

Design Tradeoffs in Privacy-Preserving Contact Tracing

Let's Develop Decentralized, Privacy-Preserving Contact Tracing

Decoding Bitcoin Messages with Tokio Codecs

Composable Futures-based Batch Verification

A New Network Stack For Zcash

zkp: a toolkit for Schnorr proofs

Flexible precomputation for verification checks

Even faster Edwards curves with IFMA

Bulletproofs pre-release

Merlin: flexible, composable transcripts for zero-knowledge proofs

Accelerating Edwards Curve Arithmetic with Parallel Formulas

Faster Bulletproofs with Ristretto and AVX2

SIDH in Go for quantum-resistant TLS 1.3

When ‘he’ll be kept on payroll, somewhere’ is where you are

Capitalism and Arithmetic and Casting Out Nines

Fun with n-grams, part 2: tightly packed tries

Fun with Google n-grams data (part 1)

Converting KML files to shapefiles with extra data

Better Living Through Clang-istry

Notes on my Arch Linux install

Haskell, Lasers, and Curved-Fold Origami

KStars GSoC: OpenCL and a first performance report

KStars GSoC: Aberration with a Stereographic Projection

KStars GSoC: Progress Update

Intel VTune on Linux 3.9 workaround for hlist_for_each_entry

Quaternions and Rotations

Coordinate Systems in KStars

KStars Summer of Code 2013

Lord Macaulay on copyright

JPEG compression and retina displays

QOTD: Newton on Cassegrain

A portable photocopier with OpenCV

Beware poor quality in Springer GTM books

Elliptic Curves, Lattices, and the Upper Half-Plane

A neat trick to distinguish integers

Chrome for Android webfont bug workaround

Curved-Fold Origami