https://github.com/hardbyte/paillier.js

A library for Partially Homomorphic Encryption in Javascript
https://github.com/hardbyte/paillier.js

Last synced: 8 months ago
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A library for Partially Homomorphic Encryption in Javascript

• Host: GitHub
• URL: https://github.com/hardbyte/paillier.js
• Owner: hardbyte
• Created: 2014-11-24T00:22:10.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2017-08-10T10:28:14.000Z (over 8 years ago)
• Last Synced: 2025-02-09T07:09:45.225Z (about 1 year ago)
• Language: JavaScript
• Size: 21.5 KB
• Stars: 21
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          

# paillier.js

A pure javascript implementation of [python-paillier](https://github.com/NICTA/python-paillier).

Currently relies on jsbn and crypto.

[![Build Status](https://travis-ci.org/hardbyte/paillier.js.svg)](https://travis-ci.org/hardbyte/paillier.js)

## What is done?

- [x] Generate paillier keypairs

- [ ] Raw encryption of integers

  - [x] Raw encryption of small integers (less than 2^16)

  - [x] Deal with encrypting large numbers (see [shortcut](https://github.com/NICTA/python-paillier/blob/master/phe/paillier.py#L129))

- [x] Raw decryption of ciphertext strings into integers

- [ ] Encoded Number

- [ ] Full test coverage

  - [ ] Port of python-paillier's [raw encryption tests](https://github.com/NICTA/python-paillier/blob/master/phe/tests/paillier_test.py#L75)

  - [ ] Port of python-paillier's [encoded number tests](https://github.com/NICTA/python-paillier/blob/master/phe/tests/paillier_test.py#L134)

  - [ ] Port of python-paillier's [encrypted number tests](https://github.com/NICTA/python-paillier/blob/master/phe/tests/paillier_test.py#L332)

  - [ ] Port of python-paillier's [keyring tests](https://github.com/NICTA/python-paillier/blob/master/phe/tests/paillier_test.py#L963)

  - [ ] in-browser tests ([crypto-browserify](https://github.com/dominictarr/crypto-browserify) may come in handy)

# Paillier 

The homomorphic properties of the paillier crypto system are:

Encrypted numbers can be multiplied by a non encrypted scalar.

Encrypted numbers can be added together.

Encrypted numbers can be added to non encrypted scalars.