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siphash24

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siphash24

SipHash (2-4) implemented in pure Javascript and WebAssembly


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siphash24

SipHash (2-4) implemented in pure Javascript and WebAssembly.

npm install siphash24

The Javascript fallback is adapted from https://github.com/jedisct1/siphash-js to support Uint8Arrays and the (fast!) WebAssembly implementation is hand written.

When using the WASM implementation this module is almost as fast as the C version (around 10% slower on my laptop).

Usage

var siphash24 = require('siphash24')
var hash = siphash24(Buffer.from('hello world'), Buffer.from('012345678012345678'))

console.log(hash, 'hash of "hello world" as a uint8array')

API

var hash = siphash24(input, key, [hash])

Hash a Uint8Array/buffer using siphash24.

  • key should be a Uint8Array/buffer that is siphash24.KEYBYTES long
  • hash can to be optionally passed as the output buffer and should be siphash24.BYTES long.

Returns the hash as a Uint8Array.

siphash24.WASM_SUPPORTED

Boolean informing you if your runtime supports WASM.

siphash24.WASM_LOADED

Boolean informing you if the WASM implementation has been loaded.

License

MIT

FAQs

Last updated on 21 Mar 2022

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