Robert B. Langer

Reverse engineering

• stcm2-asm: a disassembler and assembler for a large, practical subset of the STCM2 format used in some Idea Factory games.
  usable for developing mods for 5 known titles (and likely more)

Cryptography

• cubehash-rs: rust implementation of djb's CubeHash (SHA-3 semifinalist), optimized for 4 different SIMD instruction sets
• groestl-gfni: implementation of Grøstl-256 (SHA-3 finalist), accelerated with AVX512GFNI instructions, constant-time

Emulation

• Chip8Emu: one of my first "real" software projects. i wrote this mostly over the course of 8th grade
• rv-bsnes (unfinished): an incremental project to get bsnes running in the browser.
  at this moment, is built on a highly performant RISC-V interpreter
  live demo

Boring & practical

• nanomp3: a pure-Rust and (eventually) safe MP3 (MPEG-2 Audio Layer III) decoder. a translation of minimp3. for embedded systems.

Grandiose & impractical

• ninewire (experimental, unfinished): experiments in 9P, remote filesystems over LFNs (long fat networks), peer-to-peer sharing, noise protocol, reliable datagram layers (UDT), et cetera

Games

• c4: 3D connect four demonstrating wgpu, in a beautiful environment sourced from a diffusion model
• ttt: play tic-tac-toe against the computer, rendered entirely in software
• bookshelf (not yet released): break through your reading backlog by turning books into virtual currency.
  a fun (for me) experiment with Common Lisp and Raylib. art by Ashley Thompson

Cats