🌸 blossom ~ scalable bloom filters

npm install @yipsec/blossom --save

This package contains a small handful of utilities for efficient probablistic checking for members in a set. This is achieved through the implementation of different Bloom filters. This package is a heavily refactored fork of node-bloem (which hasn't seen a commit in at least 11 years), that I intend to maintain for use in 🝰 dusk. Many thanks to the authors for their work.

A Bloom filter is a space-efficient probabilistic data structure used to test whether an element is a member of a set. It can quickly indicate if an item is definitely not in the set or possibly in the set, but it may produce false positives.

example

const { BloomFilter } = require('@yipsec/blossom').bloom;
const bloomFilter = new BloomFilter();

bloomFilter.add(Buffer.from('00acab00', 'hex'));
bloomFilter.add(Buffer.from('00131200', 'hex'));

console.log(bloomFilter.has(Buffer.from('00acab00', 'hex'))); // true
console.log(bloomFilter.has(Buffer.from('00131200', 'hex'))); // true
console.log(bloomFilter.has(Buffer.from('12345678', 'hex'))); // false

copying

anti-copyright 2025, chihuahua.rodeo
licensed under the lesser gnu general public license 3.0