https://github.com/lucasmenendez/gopaillier

Simple homomorphic encryption based on Paillier cryptosystem implementation in Go. Supports floating point numbers, addition, subtraction, multiplication and division.
https://github.com/lucasmenendez/gopaillier

go homomorphic-cryptography-scheme homomorphic-encryption paillier paillier-cryptosystem

Last synced: 2 months ago
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Simple homomorphic encryption based on Paillier cryptosystem implementation in Go. Supports floating point numbers, addition, subtraction, multiplication and division.

• Host: GitHub
• URL: https://github.com/lucasmenendez/gopaillier
• Owner: lucasmenendez
• License: mit
• Created: 2022-08-15T17:10:08.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-11-13T21:18:13.000Z (about 2 years ago)
• Last Synced: 2024-06-20T17:48:27.609Z (7 months ago)
• Topics: go, homomorphic-cryptography-scheme, homomorphic-encryption, paillier, paillier-cryptosystem
• Language: Go
• Homepage:
• Size: 52.7 KB
• Stars: 9
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# GoPaillier

Extended version of a Paillier cryptosystem implementation in Go. 

## Features

- Extended Paillier cryptosystem implementation with negative number support (read more [here](./pkg/paillier/)).

- Uses Standard Form notation to encode numbers allowing to use Paillier encryption scheme over integer and floating points numbers (read more about [number package here](./pkg/number/number.go)).

- Allows four different operations:

  - Addition between encrypted and plain numbers: `A' + B`.

  - subtraction between encrypted and plain numbers: `A' + (-B)`.

  - Multiplication between encrypted and plain numbers: `A' * B`.

  - Division between encrypted and plain numbers: `A' * 1/B`.

### Installation

```sh

go get github.com/lucasmenendez/gopaillier@latest

```

### Examples

There are three basic examples ready to help starting with the library:

- Basic Paillier example: [Source code](./examples/basic/main.go).

- Median example: [Source code](./examples/median/main.go).

- SDK example: [Source code](./examples/sdk/main.go).