public void GeneratePrivateKey63()
{
// Hash of the validator index (as little endian bytes), is converted to integer as little endian,
// then that integer (after modulus) is used as the big endian private key.
// However, Hash(63) is small enough that it only has 31 bytes (not 32),
// so when writing we have to ensure the padding is at the correct end.
//
// i.e. little endian 63 = 0x3f,
// Hash(0x3f00000000000000000000000000000000000000000000000000000000000000)
// = 0xbdd4daa5482af796206dc02a6780cfb51efe5e16c491c61bd9bf64cfc0da6e00
// Little endian this is 195862955980072989385619164996948568652240008241846978685122117889393611965
// When converted to bytes big endian (as per Eth BLS), this is only 31 bytes:
// 0x6edac0cf64bfd91bc691c4165efe1eb5cf80672ac06d2096f72a48a5dad4bd
// If written to an array/span it would pad on the right, but needs to pad on the left:
// 0x006edac0cf64bfd91bc691c4165efe1eb5cf80672ac06d2096f72a48a5dad4bd
// Arrange
IServiceCollection testServiceCollection = TestSystem.BuildTestServiceCollection(useStore: true);
IConfigurationRoot configuration = new ConfigurationBuilder()
.AddInMemoryCollection(new Dictionary <string, string> {
["QuickStart:ValidatorCount"] = "64"
})
.Build();
testServiceCollection.AddBeaconNodeQuickStart(configuration);
ServiceProvider testServiceProvider = testServiceCollection.BuildServiceProvider();
// Act
QuickStart quickStart = (testServiceProvider.GetService <INodeStart>() as QuickStart) !;
byte[] privateKey = quickStart.GeneratePrivateKey(63);
// Assert
privateKey.Length.ShouldBe(32);
privateKey[0].ShouldBe((byte)0x00);
privateKey[1].ShouldBe((byte)0x6e);
privateKey[31].ShouldBe((byte)0xbd);
}
public async Task TestValidatorKeyGeneration64()
{
// Arrange
var overrideConfiguration = new Dictionary <string, string>
{
["QuickStart:GenesisTime"] = "1578009600",
["QuickStart:ValidatorCount"] = "64"
};
IServiceCollection testServiceCollection = TestSystem.BuildTestServiceCollection(overrideConfiguration);
ServiceProvider testServiceProvider = testServiceCollection.BuildServiceProvider();
// Act
Eth1BridgeWorker eth1BridgeWorker =
testServiceProvider.GetServices <IHostedService>().OfType <Eth1BridgeWorker>().First();
await eth1BridgeWorker.ExecuteEth1GenesisAsync(CancellationToken.None);
// Assert
testServiceProvider.GetService <IEth1GenesisProvider>().ShouldBeOfType <QuickStartMockEth1GenesisProvider>();
IStore store = testServiceProvider.GetService <IStore>();
BeaconState state = await store.GetBlockStateAsync(store.FinalizedCheckpoint.Root);
state.Validators.Count.ShouldBe(64);
}
