Updated 2019-10-30

Using Hyperledger Besu-extended Privacy

Hyperledger Besu provides an extended implementation of privacy by allowing a privacy group to be created for a set of participants. The privacy group ID must be specified when sending private transactions.

Using the --rpc-http-api or --rpc-ws-api command line options enable:

• EEA API methods
• PRIV API methods

Use priv_createPrivacyGroup to create the privacy group containing the recipients of the private transaction.

Specify privacyGroupId when creating the signed transaction passed as an input parameter to eea_sendRawTransaction to create an EEA-compliant private transaction.

Note

Support for specifying privacyGroupId when using eea_sendTransaction with EthSigner will be available in a future EthSigner release.

Privacy Group Type

Privacy groups created using priv_createPrivacyGroup are identified as type BESU when returned by priv_findPrivacyGroup.

Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
     {
       "privacyGroupId": "GpK3ErNO0xF27T0sevgkJ3+4qk9Z+E3HtXYxcKIBKX8=",
       "name": "Group B",
       "description": "Description of Group B",
       "type": "BESU",
       "members": [
         "negmDcN2P4ODpqn/6WkJ02zT/0w0bjhGpkZ8UP6vARk=",
         "g59BmTeJIn7HIcnq8VQWgyh/pDbvbt2eyP0Ii60aDDw="
       ]
     }
  ]
}