https://github.com/antoinevastel/picasso-like-canvas-fingerprinting

Implementation of canvas fingerprinting based on the Picasso paper
https://github.com/antoinevastel/picasso-like-canvas-fingerprinting

Last synced: 27 days ago
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Implementation of canvas fingerprinting based on the Picasso paper

• Host: GitHub
• URL: https://github.com/antoinevastel/picasso-like-canvas-fingerprinting
• Owner: antoinevastel
• License: mit
• Created: 2019-03-20T19:12:28.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-03-16T10:25:40.000Z (9 months ago)
• Last Synced: 2024-10-19T00:06:15.585Z (about 2 months ago)
• Language: JavaScript
• Size: 36.1 KB
• Stars: 141
• Watchers: 6
• Forks: 33
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Picasso based canvas fingerprinting

[![Actions Status](https://github.com/antoinevastel/picasso-like-canvas-fingerprinting//workflows/picasso-canvas-fingerprinting/badge.svg)](https://github.com/antoinevastel/picasso-like-canvas-fingerprinting/actions)

[![NPM package](https://img.shields.io/npm/v/picasso-canvas-fingerprinting.svg)](https://www.npmjs.com/package/picasso-canvas-fingerprinting)

## News:

I recently created a [website where you can see your browser fingerprint](https://deviceandbrowserinfo.com/info_device) and different fingerprinting-related signals like your IP address, your canvas fingerprint, your HTTP headers, etc. Some information is accessible both through a webpage and through APIs. Don't hesitate to bookmark it as I will add more signals and more content related to bots.

------------

Implementation of a canvas fingerprinting algorithm inspired by the [Picasso paper](https://ai.google/research/pubs/pub45581) written by Elie Bursztein.

An online demo is available on [my blog](https://antoinevastel.com/browser%20fingerprinting/2019/03/21/picasso-canvas-fingerprinting.html).

## Quick start

```html

You can host your own version of the Picasso canvas fingerprinting script or include it using Jsdelivr CDN.

```

Once the Picasso script is loaded in your HTML page, you can use it as follows:

```html

    const params = {

        area: {

            width: 300,

            height: 300,

        },

        offsetParameter: 2001000001,

        fontSizeFactor: 1.5,

        multiplier: 15000,

        maxShadowBlur: 50,

    };

    // Number of shapes to draw. The higher the more costly it is.

    // Can be used as a way to adjust the aggressiveness of the proof of work (POW)

    const numShapes = 5;

    const initialSeed = Math.floor(100*Math.random());

    const canvasValue = picassoCanvas(

        numShapes, initialSeed, params

    );

    // canvasValue is a hash representing the result of the Picasso challenge, e.g.

    // c24b4a72badc95284b337aa304be1438

```