mirror of
https://github.com/status-im/status-go.git
synced 2025-01-10 22:56:40 +00:00
a61c0368bc
* add HashMessage to backend, lib, and mobile. * move HashMessage out of the backend struct * fix comment typo
28 lines
705 B
Go
28 lines
705 B
Go
package api
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
)
|
|
|
|
// RunAsync runs the specified function asynchronously.
|
|
func RunAsync(f func() error) <-chan error {
|
|
resp := make(chan error, 1)
|
|
go func() {
|
|
err := f()
|
|
resp <- err
|
|
close(resp)
|
|
}()
|
|
return resp
|
|
}
|
|
|
|
// HashMessage calculates the hash of a message to be safely signed by the keycard
|
|
// The hash is calulcated as
|
|
// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
|
|
// This gives context to the signed message and prevents signing of transactions.
|
|
func HashMessage(data []byte) []byte {
|
|
msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), data)
|
|
return crypto.Keccak256([]byte(msg))
|
|
}
|