https://github.com/nokitakaze/pedersen-hash.net

Pedersen Hash for C# .Net
https://github.com/nokitakaze/pedersen-hash.net

babyjub pedersen pedersen-hash tornado-cash tornadocash zksnark

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Pedersen Hash for C# .Net

• Host: GitHub
• URL: https://github.com/nokitakaze/pedersen-hash.net
• Owner: nokitakaze
• License: gpl-3.0
• Created: 2022-08-27T14:13:07.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2024-02-21T11:57:00.000Z (11 months ago)
• Last Synced: 2024-02-21T12:50:03.099Z (11 months ago)
• Topics: babyjub, pedersen, pedersen-hash, tornado-cash, tornadocash, zksnark
• Language: C#
• Homepage:
• Size: 19 MB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
Pedersen-Hash.Net

===========

[![Build status](https://ci.appveyor.com/api/projects/status/8063wyx09n8gpvb3/branch/master?svg=true)](https://ci.appveyor.com/project/nokitakaze/pedersen-hash-net/branch/master)

[![Test status](https://img.shields.io/appveyor/tests/nokitakaze/pedersen-hash-net/master)](https://ci.appveyor.com/project/nokitakaze/pedersen-hash-net/branch/master)

[![codecov](https://codecov.io/gh/nokitakaze/pedersen-hash.net/branch/master/graph/badge.svg)](https://codecov.io/gh/nokitakaze/pedersen-hash.net)

[![Nuget version](https://badgen.net/nuget/v/PedersenHashNet)](https://www.nuget.org/packages/PedersenHashNet)

[![Total nuget downloads](https://badgen.net/nuget/dt/PedersenHashNet)](https://www.nuget.org/packages/PedersenHashNet)

This project is a C# implementation of [Pedersen Hash](https://docs.tornado.cash/general/how-does-tornado.cash-work) used in [Tornado Cash](https://docs.tornado.cash/general/how-does-tornado.cash-work) [encrypted notes](https://github.com/nokitakaze/tornado-cash-encrypted-note.net).

## Public Interface

* **`PedersenHashGenerator.GetHexCommitmentFromPrivatePair(string commitmentSecret): string`** — Get hexed public commitment for hex commitment secret

* **`PedersenHashGenerator.GetHexCommitmentFromPrivatePair(byte[] commitmentSecret): string`** — Get hexed public commitment for byte array commitment secret

* **`PedersenHashGenerator.GetCommitmentFromPrivatePair(string commitmentSecret): byte[]`** — Get 32-bytes array with public commitment for hex commitment secret

* **`PedersenHashGenerator.GetCommitmentFromPrivatePair(byte[] commitmentSecret): byte[]`** — Get 32-bytes array with public commitment for byte array commitment secret

### Example

Check commitment

```C#

var commitment = PedersenHashGenerator.GetHexCommitmentFromPrivatePair("0xc0b94c09303630d49984ee319ef44beb1cd29eb6d4f1f7fb8955731d76d79a5e94e1676adba37f0c7110db02b3cdc526f960d4c2685da441597c7533aa3d");

const string expectedCommitment = "0x01cd97f5fb94b8bd45979703af68790dff36dfb13c8227d6b68349fac72ff949";

Console.WriteLine("{0}\t{1}", commitment, commitment == expectedCommitment);

```

### Benchmark

- [Main benchmark](docs/main-benchmark.md)

## License

Licensed under the GPL-3.0.

This software is provided **"AS IS" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied**.

Source code was transpiled from JavaScript code:

- [circomlib](https://github.com/iden3/circomlib) and [its tornado version](https://github.com/tornadocash/circomlib.git)

- [SnarkJS](https://github.com/iden3/snarkjs) and [its tornado version](https://github.com/tornadocash/snarkjs.git)