Huge News!Announcing our $40M Series B led by Abstract Ventures.Learn More
Socket
Sign inDemoInstall
Socket

siphash

Package Overview
Dependencies
Maintainers
1
Versions
5
Alerts
File Explorer

Advanced tools

Socket logo

Install Socket

Detect and block malicious and high-risk dependencies

Install

siphash

SipHash-2-4 fast short-input pseudo-random function

  • 1.2.0
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
27K
decreased by-8.37%
Maintainers
1
Weekly downloads
 
Created
Source

siphash.js

A pure Javascript implementation of SipHash

SipHash is a family of pseudorandom functions optimized for short inputs. Target applications include network traffic authentication and hash-table lookups protected against hash-flooding denial-of-service attacks. SipHash has well-defined security goals and competitive performance.

This package also includes implementations of SipHash-1-3, SipHash128, and SipHash128-1-3.

Installation

Server-side installation (io.js/nodejs):

$ npm install siphash

Browser-side/single-line minified version: use lib/siphash.js.min.

Usage

var siphash = require("siphash"),
    key = siphash.string16_to_key("This is the key!"),
    message = "Short test message",
    hash_hex = siphash.hash_hex(key, message);

A key is an array of 4 integers, and each of them will be clamped to 32 bits in order to build a 128-bit key. For a random key, just generate 4 random integers instead of calling string16_to_key().

var siphash = require("siphash"),
    key = [ 0xdeadbeef, 0xcafebabe, 0x8badf00d, 0x1badb002 ],
    message = "Short test message",
    hash_hex = siphash.hash_hex(key, message);

The 64-bit hash can also be obtained as two 32-bit values with hash(key, message):

var siphash = require("siphash"),
    key = [ 0xdeadbeef, 0xcafebabe, 0x8badf00d, 0x1badb002 ],
    message = "Short test message",
    hash = siphash.hash(key, message),
    hash_msb = hash.h,
    hash_lsb = hash.l;

A 53-bit unsigned integer can be obtained with hash_uint(key, message):

var siphash = require("siphash"),
    key = siphash.string16_to_key("0123456789ABCDEF"),
    message = "Short test message",
    index = siphash.hash_uint(key, message);

SipHash-1-3

SipHash-1-3 is a faster variant of SipHash-2-4 with fewer rounds, which is still believed to be secure enough for typical uses. This variant is available here: siphash13.js

SipHash-double

Although not part of the module, an implementation of SipHash with 128-bit output is also available: siphash-double.js

SipHash-1-3 with a 128-bit output is also part of the package: siphash13-double.js

Keywords

FAQs

Package last updated on 10 Dec 2024

Did you know?

Socket

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap
  • Changelog

Packages

npm

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc