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PNG2CRC: Get fingerprint of the user machine using a canvas

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Last Updated Ratings Unique User Downloads Download Rankings
2015-04-25 (4 years ago) RSS 2.0 feedNot enough user ratingsTotal: 144 All time: 335 This week: 8Up
Version License JavaScript version Categories
png2crc 0.1Free For Educatio...1.8Browser, Graphics, Security
Description Author

This object can get fingerprint of the user machine using a canvas.

It adds a property to a given object that can set a text string encoded using base64 to render on a canvas object.

The object sets a default value to the base64 encoded text, but that value may be overridden.

The object can get the CRC of the canvas data rendering the text to act as a fingerprint of the user machine.

Innovation Award
JavaScript Programming Innovation award nominee
May 2015
Number 2


Prize: One book of choice by Packt
Every computer installation is different even when the user is running the same browser on the same operating system.

This object can compute a fingerprint value of the computer that the user is using by rendering a text value on canvas object and taking a CRC checksum value of the canvas pixel values.

This can be used to distinguish different users without require the user to identify himself.

Manuel Lemos
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Name: Dusan Boskic <contact>
Classes: 3 packages by
Country: Serbia Serbia
Age: 40
All time rank: 882 in Serbia Serbia
Week rank: 23 Up1 in Serbia Serbia Up
Innovation award
Innovation award
Nominee: 2x

  Files folder image Files  
File Role Description
Plain text file png2crc.js Class Fingerprint
Accessible without login Plain text file sample.js Example How to use

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Total:144
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All time:335
This week:8Up