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.
The following accounts are test accounts and their private keys are publicly visible in this documentation and in publicly available source code.
They are not secure and everyone can use them.
Using test accounts on Ethereum Mainnet and production networks can lead to loss of funds and identity fraud.
In this documentation, we only provide test accounts for ease of testing and learning purposes; never use them for other purposes.
Always secure your Ethereum Mainnet and any production account properly.
See for instance MyCrypto "Protecting Yourself and Your Funds" guide.
0xfe3b557e8fb62b89f4916b721be55ceb828dbd73
)"Private key to copy :
0x8f2a55949038a9610f50fb23b5883af3b4ecb3c3bb792cbcefbd1542c692be63
Initial balance : 200 Eth (200000000000000000000 Wei)
0x627306090abaB3A6e1400e9345bC60c78a8BEf57
)"Private key to copy :
0xc87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3
Initial balance : 90000 Eth (90000000000000000000000 Wei)
0xf17f52151EbEF6C7334FAD080c5704D77216b732
)"Private key to copy :
0xae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d94e974d162f
Initial balance : 90000 Eth (90000000000000000000000 Wei)
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 .