Jack O'Connor
programmer at none currently
Jack is a programmer, previously at Microsoft, Facebook, and most recently Keybase. At Keybase he worked on cryptography software, including Keybase Chat and the Saltpack encrypted message format. Currently he's working on a high-performance cryptographic tree hash called Bao, written in Rust.
Upcoming presentations
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Past presentations
High-performance Coding: a Rust-based tree hash for large files
Taking advantage of multithreading and SIMD in Rust
Slides: https://jacko.io/bao_presentation/presentation.html
Bao is a cryptographic tree hash, based on BLAKE2 and implemented in Rust. Tree hashes are more flexible than conventional hash functions, and Bao can verify small pieces of a file independently rather than just the whole thing at once. Tree hashes also make it possible to hash different parts of a file in parallel, which makes them...
@ Postgres Conference
Mar 22 2019
Development