smchash

High-performance hash function passing all 188 SMHasher3 quality tests.

Features

• Fast: Passes all 188 SMHasher3 quality tests
• Built-in PRNG: smcRand() passes BigCrush and PractRand
• TypeScript: Full type definitions included
• Zero dependencies

Installation

npm install smchash

Usage

import { smchash, smchashSeeded, smcRand, stringToBytes } from 'smchash';

// Basic hashing
const hash = smchash(stringToBytes("Hello, World!"));

// Seeded hashing
const hash = smchashSeeded(stringToBytes("Hello"), 12345n);

// PRNG (passes BigCrush/PractRand)
const seed = { value: 42n };
const random = smcRand(seed);

API

• smchash(data: Uint8Array): bigint - Hash with default seed
• smchashSeeded(data: Uint8Array, seed: bigint): bigint - Hash with custom seed
• smcRand(seed: { value: bigint }): bigint - PRNG
• stringToBytes(str: string): Uint8Array - Helper to convert strings

Requirements

• ES2020+ (for BigInt support)
• Node.js 12+ or modern browsers

License

MIT License - Copyright 2025 ScaleCode Solutions