mirror of
https://github.com/UneBaguette/blake3.wasm.git
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63 lines
1.7 KiB
Markdown
63 lines
1.7 KiB
Markdown
# blake3 to wasm
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**blake3.wasm** is a WebAssembly port of the BLAKE3 cryptographic hash function written in **Rust**. It enables fast and secure hashing right inside **browsers** and **Node.js**.
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## build
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```sh
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# lets build it!
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# For NodeJS
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wasm-pack build --target nodejs --release
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# For the web!
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wasm-pack build --target web --release
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```
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SIMD is enabled via `wasm32_simd` feature in `Cargo.toml` and requires:
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```toml
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# .cargo/config.toml
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[target.wasm32-unknown-unknown]
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rustflags = ["-C", "target-feature=+simd128"]
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```
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## Usage
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```js
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import { hash, hashXof, keyedHash, deriveKey, Hasher } from './pkg/blake3_wasm.js'
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const data = new TextEncoder().encode('hello world')
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const key = new Uint8Array(32).fill(1)
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// One-shot hashing
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hash(data)
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hashXof(data, 64) // variable output length
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// MAC and key derivation
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keyedHash(data, key)
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deriveKey('my context', key)
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// Streaming
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const h = new Hasher()
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h.update(data.slice(0, 5))
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h.update(data.slice(5))
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h.finalize()
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```
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## Benchmarks
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Tested on **Ryzen 7 5800X**, Node.js v24.
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| Size | @noble/hashes | awasm-noble | blake3-wasm |
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|-------|---------------|-------------|-------------|
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| 32 B | 11 MB/s | 34 MB/s | 81 MB/s |
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| 1 KB | 60 MB/s | 360 MB/s | 781 MB/s |
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| 64 KB | 49 MB/s | 1,518 MB/s | 2,004 MB/s |
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| 1 MB | 51 MB/s | 1,671 MB/s | 1,893 MB/s |
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| 10 MB | 51 MB/s | 1,572 MB/s | 1,812 MB/s |
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## See also
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- [@noble/hashes](https://github.com/paulmillr/noble-hashes) | pure JS implementation
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- [awasm-noble](https://github.com/paulmillr/awasm-noble) | auditable WASM implementation
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- [blake3-napi](https://github.com/UneBaguette/blake3-napi) | native Node.js addon, faster for large inputs |