Updated on March 16, 2020

Accounts for testing

You can use existing accounts for testing by including them in the genesis file for a private network. Hyperledger Besu also provides predefined accounts for use in development mode.

Development mode

When you start Besu with the --network=dev command line option, Besu uses the dev.json genesis file by default.

The dev.json genesis file defines the following accounts used for testing.

Warning

Do not use the following accounts on mainnet or any public network except for testing.

The private keys are displayed here which means the accounts are not secure.

Account 1 (Miner Coinbase Account)

Address: 0xfe3b557e8fb62b89f4916b721be55ceb828dbd73
Private key : 0x8f2a55949038a9610f50fb23b5883af3b4ecb3c3bb792cbcefbd1542c692be63
Initial balance : 0xad78ebc5ac6200000 (200000000000000000000 in decimal)

Account 2

Address: 0x627306090abaB3A6e1400e9345bC60c78a8BEf57
Private key : 0xc87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3
Initial balance : 0x90000000000000000000000 (2785365088392105618523029504 in decimal)

Account 3

Address: 0xf17f52151EbEF6C7334FAD080c5704D77216b732
Private key : 0xae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d94e974d162f
Initial balance : 0x90000000000000000000000 (2785365088392105618523029504 in decimal)

Genesis file

To use existing test accounts, specify the accounts and balances in a genesis file for your test network. For an example of how to define accounts in the genesis file, see dev.json.

To start Besu with the genesis file defining the existing accounts, use the --genesis-file command line option .