Icon LinkSigning

let mut rng = StdRng::seed_from_u64(2322u64);
let mut secret_seed = [0u8; 32];
rng.fill_bytes(&mut secret_seed);
 
let secret = secret_seed
    .as_slice()
    .try_into()
    .expect("The seed size is valid");
 
// Create a wallet using the private key created above.
let wallet = WalletUnlocked::new_from_private_key(secret, None);
 
let message = "my message";
 
let signature = wallet.sign_message(message).await?;
 
// Check if signature is what we expect it to be
assert_eq!(signature, Signature::from_str("0x8eeb238db1adea4152644f1cd827b552dfa9ab3f4939718bb45ca476d167c6512a656f4d4c7356bfb9561b14448c230c6e7e4bd781df5ee9e5999faa6495163d")?);
 
// Recover address that signed the message
let message = Message::new(message);
let recovered_address = signature.recover(&message)?;
 
assert_eq!(wallet.address().hash(), recovered_address.hash());
 
// Verify signature
signature.verify(&recovered_address, &message)?;
Ok(())

let secret = SecretKey::from_str(
    "5f70feeff1f229e4a95e1056e8b4d80d0b24b565674860cc213bdb07127ce1b1",
)?;
let mut wallet = WalletUnlocked::new_from_private_key(secret, None);
 
// Set up a dummy transaction.
let input_coin = Input::coin_signed(
    UtxoId::new(Bytes32::zeroed(), 0),
    Address::from_str(
        "0xf1e92c42b90934aa6372e30bc568a326f6e66a1a0288595e6e3fbd392a4f3e6e",
    )?,
    10000000,
    AssetId::from([0u8; 32]),
    TxPointer::default(),
    0,
    0u32.into(),
);
 
let output_coin = Output::coin(
    Address::from_str(
        "0xc7862855b418ba8f58878db434b21053a61a2025209889cc115989e8040ff077",
    )?,
    1,
    AssetId::from([0u8; 32]),
);
 
let mut tx: ScriptTransaction = FuelTransaction::script(
    0,
    1000000,
    0u32.into(),
    hex::decode("24400000")?,
    vec![],
    vec![input_coin],
    vec![output_coin],
    vec![],
)
.into();
 
// Sign the transaction.
let consensus_parameters = ConsensusParameters::default();
let test_provider = Provider::new(FuelClient::new("test")?, consensus_parameters);
wallet.set_provider(test_provider);
let signature = wallet.sign_transaction(&mut tx)?;
let message = Message::from_bytes(*tx.id(&consensus_parameters));
 
// Check if signature is what we expect it to be
assert_eq!(signature, Signature::from_str("8d2d7f8d5190d9acdc07717e39173bdfb0024b1c06e70b084994440eb9bdff17e57dfdcb6b45bd36a896566054809a21dfd67c0a25344c73cf9c4d9d6a32be05")?);
 
// Recover address that signed the transaction
let recovered_address = signature.recover(&message)?;
 
assert_eq!(wallet.address().hash(), recovered_address.hash());
 
// Verify signature
signature.verify(&recovered_address, &message)?;
Ok(())