Pedro Alves
Pedro Alves

Hi, I'm Pedro

I'm a Senior GPU Engineer at Zama, where we work to make fully homomorphic encryption (FHE) practical by shipping it in production-grade systems—including TFHE-rs and FHEVM.

I have a PhD in Computer Science from the Institute of Computing at the University of Campinas (Unicamp), and I care deeply about privacy-preserving technologies and secure cloud computing. I've been building on CUDA since the early days of that stack. I'm still learning, but by now I can usually tell whether the slowdown is the math, the memory, or me having a bad day.

My research focuses on developing efficient implementations of cryptographic schemes, particularly homomorphic encryption, to enable computation over encrypted data without compromising privacy. I have worked extensively with GPGPU implementations to accelerate those cryptographic operations.

I am passionate about open-source software and believe in making privacy-preserving technologies accessible to everyone.

Onwards!

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Recent posts

TitleDate
cuda-oxide: when Rust meets CUDA2026/05/12
On the new normal (AI style)2026/05/07
Git – By example2015/03/01
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Recent publications

2024
Lattice-Based Homomorphic Encryption For Privacy-Preserving Smart Meter Data AnalyticsThe Computer Journal (Oxford University Press)
2021
Faster Homomorphic Encryption over GPGPUs via hierarchical DGTFinancial Cryptography and Data Security
2020
Faster Homomorphic Encryption over GPGPUs via hierarchical DGTCryptology ePrint Archive
2018
A framework for searching encrypted databasesJournal of Internet Services and Applications
2016
A framework for searching encrypted databasesXVI Brazilian Symposium on Information and Computational Systems Security
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Projects

TFHE-rsPure Rust implementation of TFHE for boolean and integer arithmetics over encrypted data. Core cryptographic library with Rust, C, and WASM APIs. Contributor to this major open-source project by Zama, implementing programmable bootstrapping and advanced FHE features.
FarewellDecentralized application (dApp) for posthumous encrypted messages using smart contracts on FHEVM. Features check-in mechanism, grace period, encrypted message storage, and delivery system. Deployed on Ethereum Sepolia testnet as a proof-of-concept.
ChainChatEncrypted blockchain chat rooms powered by Zama's FHEVM. End-to-end encrypted messaging with wallet-based identity, allow lists, and room management. Fully on-chain chat rooms deployed as smart contracts on Ethereum Sepolia.
OhMyCriterionShell tool that parses Criterion.rs benchmark output under target/criterion/ and prints latency, throughput, confidence intervals, and regression deltas in color-coded terminal tables—optional JSON export and filtering for Rust performance workflows.
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