camilo5972 / private-transaction-hyperledger-besu-java

Private transactions using Hyperledger Besu and Java

Private transactions Hyperledger Besu

Java example library with Maven for interaction with smart contract using private transactions with Hyperledger Besu. This is done using a configuration with Orion, which is responsible for managing private transactions with the Besu node. This example is based on a configuration with 3 Besu nodes and 3 Orion nodes respectively from the besu quickstart(with privacy), of which 2 are used to generate a group identifier (privacyGroupId).

Run tests

Before running the tests, the following must be configured in AppTest.java file:

private String host = "http://localhost:20000"; // Besu node IP
private String privateKey = "0xa4db817db6c69ef95682d2f9e60d46a3e6cd890f0f3d8226cade1711584fb313"; // Private key to make transactions
private String privGroupId = "LOO+4JomlfJ3Q+SlaOkxRJkN9YCLeBPdxlf2M1+oc+A="; // Privacy group ID. You need to generate your own privGroupId
private String privFrom = "A1aVtMxLCUHmBVHXoZzzBgPbW/wj5axDpW9X8l91SGo="; // Public key of the Orion node

How to generate privGroupId

To test the library you must uncomment each of the tests. Run first the test to deploy a contract, then to stamp a docuement and finally to verify. The address of the deployed contract is placed in the contractAddress variable before running the other. tests

$ mvn clean test

Medium article: https://medium.com/@camilo5972/transacciones-privadas-con-hyperledger-besu-441f0befb6dd