Is it possible to sign transaction on ARM Microcontroller and then somehow broadcast it?
I have read about ethereumjs-tx, but how to implement it without any OS on board?
UDPADE: I have found how to create a signed transaction in Go
transaction := types.NewTransaction(nonce, recipient, value, gasLimit, gasPrice, input) signature, _ := crypto.Sign(transaction.SigHash().Bytes(), key) signed, _ := tx.WithSignature(signature)
Where can I find same code in C/C++ with lib?