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27 lines
946 B
Markdown
27 lines
946 B
Markdown
rust-poseidon-bn254-pure
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Self-contained (no external dependencies), pure Rust implementation of Poseidon
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and Poseidon2 hash functions over the BN254 curve's scalar field, using 32 bit
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limbs internally.
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It's intended to be used on 32-bit platforms, eg. 32-bit RISC-V (rv32im)
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(though porting to 64 bits shouldn't be a big effort).
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The algebra implementation is based on [`zikkurat-algebra`](https://github.com/faulhornlabs/zikkurat-algebra/)
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and [`staging-agda`](https://github.com/faulhornlabs/staging-agda/).
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### Status
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Currently, only Poseidon2 with `t=3` is implemented.
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### TODO
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- [ ] optimize squaring to use less multiplications (?)
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- [ ] benchmark RISC-V cycles
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- [ ] add more Poseidon2 state widths (not just `t=3`)
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- [ ] implement `circomlib`-compatible Poseidon
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- [ ] add a test-suite; in particular, more complete testing of the field operations
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- [ ] add a 64 bit version
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- [ ] further optimizations
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