> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getpara.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Sign Messages with Stellar Libraries
> Sign arbitrary bytes for verification using the Stellar SDK with Para in React Native
Sign arbitrary bytes to prove ownership of a Stellar address without submitting a transaction. This is useful for authentication and off-chain verification.
## Sign Bytes
Use the `ParaStellarSigner` class API to sign arbitrary bytes directly:
```typescript theme={null}
import { useParaStellarSigner } from "@getpara/react-native-wallet/stellar";
import { Networks } from "@stellar/stellar-sdk";
import { View, Text, Button } from "react-native";
function SignMessage() {
const { stellarSigner, isLoading } = useParaStellarSigner({
networkPassphrase: Networks.PUBLIC,
});
const signMessage = async () => {
if (!stellarSigner) return;
const message = "Hello, Stellar!";
const messageBytes = Buffer.from(new TextEncoder().encode(message));
const signature = await stellarSigner.signBytes(messageBytes);
console.log("Message:", message);
console.log("Signature:", signature.toString("hex"));
console.log("Signer:", stellarSigner.address);
};
if (isLoading) return Loading...;
return ;
}
```
Stellar does not have a standardized message signing format like EIP-191 on Ethereum. The `signBytes` method signs raw bytes using Ed25519. Both parties must agree on how to encode and hash the message before signing.
## Next Steps