The BLAKE3 hash function running on a 6502 microprocessor

In plain words

BLAKE3 is a cryptographic hash function implemented to run on the 6502 microprocessor, a CPU from the 1970s commonly found in vintage computers like the Commodore 64 and Apple II. The project is for retrocomputing enthusiasts and developers interested in modern cryptography on legacy hardware. What stands out is the technical achievement of porting a contemporary hashing algorithm to severely resource-constrained vintage systems, demonstrating that advanced cryptographic functions can work even on decades-old processors.

written from the facts on this page · September 2026

• 
  SHA-256 Animation2020 · github.com · ▲1,053

  Animation of the SHA-256 hash function in your terminal. - in3rsha/sha256-animation

• 
  A portable hash map in C2024 · github.com · ▲176

  A small, portable, linear probing hash map. Contribute to e-dant/salmagundi development by creating an account on GitHub.

• 
  I made an easy-to-understand 6502 emulator in pure C2013 · github.com · ▲88

  Yet another 6502 emulator that one day dreams of being an Atari 2600. - haldean/x6502

• 
  filippo.io/mlkem768 – Post-Quantum Cryptography for the Go Ecosystem2024 · words.filippo.io · ▲315

  filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.

• AS
  Accelerating SHA256 by 100x in Golang on ARM2016 · blog.minio.io · ▲156
• 
  Accelerate SHA256 Computations in Go Using AVX512 instructions2017 · github.com · ▲74

  Accelerate SHA256 computations in pure Go using AVX512, SHA Extensions for x86 and ARM64 for ARM. On AVX512 it provides an up to 8x improvement (over 3 GB/s per core). SHA Extensions give a performance boost of close to 4x over native. - minio/sha256-simd

• 
  SimCity, but with Permits▲894

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 1d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 13d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 14d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 12d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• 
  Bardeen▲1,286

  One-click automations for your repetitive tasks

  Growth · 2022 · bardeen.ai

• 
  SHA-256 explained step-by-step visually▲1,241

  Sha256 algorithm explained online step by step visually

  Life & fun · 2022 · sha256algorithm.com

• 
  EdgeDB 1.0▲947

  Today, after years of research, development, and refinement EdgeDB graduates to a production-ready database. We are very proud to announce EdgeDB 1.0.

  Dev tools · 2022 · edgedb.com

• 
  Medusa▲893

  The open-source Shopify alternative

  Dev tools · 2022 · medusajs.com

• 
  Help Ukraine Win▲888

  Trusted ways to help Ukraine stop Russian aggression

  Life & fun · 2022

• 
  First 100 Users▲883

  100 ideas for your startup's first 100 users

  Growth · 2022 · first100users.com