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getting-started.md

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Requirements

  1. Install Docker;
  2. Install Node.js；
  3. Install Python2.7；
    • npm configuration: npm config set python path/to/python2.7
  4. Install Truffle；
    • npm install -g truffle
  5. Install Ganache.

Trust setup

Under the root directory of project：

npm install

then

cd zkp
npm run setup -- -i gm17/parent-dir-of-pcode/

-i Specify the directory where the ZoKrates code is stored (.code file)

Alternatively you can process all of the folders under /gm17 in one go by using:

npm run setup

Note that this will take about 1hr to complete.

Outputs

npm run setup will：

  • compile: out out.code
  • setup: proof.json proving.key
  • export-verifier: verification.key verifier.sol

These files are generated inside the docker container and then moved to the project path corresponding to each operation zkp/code/gm17/parent-dir-of-pcode

Demonstrate

  1. Start the Ganache node in the local environment and ensure that the parameters after the running node are consistent with truffle-config.js;
  2. Run truffle migrate --reset or npm run deploy under the root directory, This will compile and deploy all smart contracts used by the project.
  3. Register the vkId：npm run setVk
  4. All processes for verifying the protocol：npm run daap

Note：After changing the ZoKrates or solidity code, you need to delete the file zkp/src/vkIds.json , and then redeploy the contract and register the vkId.