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Solidity-RingSignature

Ring-Signature using secp256k1 in Solidity for educational purpose. Allows untracable voting and coin transfer within the EVM environment. First implementation of "Linkable Spontaneous Anonymous Groups Signature REF."-Verification in solidity. secp256k1 is forked from jbaylina

##Note LSAG-signature voting with 3 cosigners requires ≈ 12.34 mGas. ECC operations are costly^^ use a testnet!

Guide

  1. Deploy secp256k1.sol on an ethereum chain
  2. Deploy UntraceableVoting.sol (pass the secp256k1 contract address in the constructor)
  3. Run main.go, to create a random set of "n voters and m candidates" and "signatures for each voter, to vote on on of the randomly selected candidates"
  4. copy the newly generated text in solargs.txt and pass them as arguments for the creation and setup a voting on the chain
  5. in vote.txt you'll find randomly generated valid vote parameters, pass them as argument for AnnonymousVote(..) function in UntraceableVoting.sol

Requirements

Go 1.9 or newer.

Getting Started

  • Solidity-RingSignature (and utilities) will now be installed in either $GOROOT/bin or $GOPATH/bin depending on your configuration. If you did not already add the bin directory to your system path during Go installation, we recommend you do so now.

Updating

Windows

Install a newer MSI

Linux/BSD/MacOSX/POSIX - Build from Source

  • Dep

    Dep is used to manage project dependencies and provide reproducible builds. To install:

    go get -u github.com/golang/dep/cmd/dep

Unfortunately, the use of dep prevents a handy tool such as go get from automatically downloading, building, and installing the source in a single command. Instead, the latest project and dependency sources must be first obtained manually with git and dep, and then go is used to build and install the project.

Getting the source:

For a first time installation, the project and dependency sources can be obtained manually with git and dep (create directories as needed):

git clone https://github.com/mottla/Solidity-RingSignature.git
cd $GOPATH/src/github.com/Solidity-RingSignature
dep ensure
go install . ./cmd/...

To update an existing source tree, pull the latest changes and install the matching dependencies:

cd $GOPATH/src/github.com/Solidity-RingSignature
git pull
dep ensure
go install . ./cmd/...