signTransaction method
Signs a transaction using the account's private key.
Implementation
@override
SuiSecp256k1Signature signTransaction(List<int> txbytes,
{bool hashDigest = true}) {
final digest = SuiCryptoUtils.generateTransactionDigest(
txBytes: txbytes, hashDigest: hashDigest);
final signature = privateKey.sign(digest);
return SuiSecp256k1Signature(
publicKey: publicKey.publicKey, signature: signature);
}