blindsig

Blind Signatures with ed25519

This repository contains a Go implementation of blind signatures using the elliptic curve algorithm Curve25519. Blind signatures allow for signing a message without the signer knowing the message's content, providing privacy and anonymity.

Prerequisites

Before using this code, make sure you have Go installed on your system. You can download it from the official Go website.

Dependencies

This implementation uses the golang.org/x/crypto/curve25519 library for elliptic curve operations. To install the library, run the following command:

go get -u golang.org/x/crypto/curve25519

Usage

To use this implementation, include the blind_signatures.go file in your project and import it as needed.

Here's a simple example of how to use the blind signatures implementation:

package main

import (
    "fmt"
    "blind-signatures" // Replace with the actual import path of the `blind_signatures.go` file
)

func main() {
    // Example usage of the blind signatures implementation
    message := []byte("Hello, World!")

    signerPrivateKey, signerPublicKey, _ := blindsignatures.GenerateKeyPair()
    userPrivateKey, userPublicKey, _ := blindsignatures.GenerateKeyPair()

    blindedMessage, unblinder, _ := blindsignatures.BlindMessage(message, signerPublicKey)
    signature, _ := blindsignatures.SignBlindedMessage(blindedMessage, signerPrivateKey)
    unblindedSignature := blindsignatures.UnblindSignature(signature, unblinder)

    valid := blindsignatures.VerifySignature(message, unblindedSignature, signerPublicKey, userPublicKey)
    fmt.Printf("Signature valid: %v\n", valid)
}

Contributing

Contributions are welcome! If you'd like to report a bug, request a feature, or submit a pull request, please feel free to open an issue or create a pull request on this repository.

Note

This implementation is only experimental purposes and should be used at your own risk. The code is not audited.

License

This project is licensed under the MIT License. See the LICENSE file for more information.