> ## 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.
# Verify Signatures with EVM Libraries
> Verify message and transaction signatures using Ethers or Viem on React Native
Verify the authenticity of signed messages and typed data to ensure they originated from the expected address.
Wagmi is not available on React Native. Use Ethers.js or Viem for EVM operations.
## Verify Personal Signatures
```typescript theme={null}
import { ethers } from "ethers";
async function verifyPersonalSignature(
message: string,
signature: string,
signerAddress: string
) {
const recoveredAddress = ethers.verifyMessage(message, signature);
const isValid = recoveredAddress.toLowerCase() === signerAddress.toLowerCase();
console.log("Signature valid:", isValid);
return isValid;
}
```
## Verify Typed Data Signatures (EIP-712)
```typescript theme={null}
import { ethers } from "ethers";
async function verifyTypedDataSignature(
domain: any,
types: any,
value: any,
signature: string,
signerAddress: string
) {
const recoveredAddress = ethers.verifyTypedData(domain, types, value, signature);
const isValid = recoveredAddress.toLowerCase() === signerAddress.toLowerCase();
console.log("Signature valid:", isValid);
return isValid;
}
```
## Verify Personal Signatures
```typescript theme={null}
import { verifyMessage } from "viem";
async function verifyPersonalSignature(
address: `0x${string}`,
message: string,
signature: `0x${string}`
) {
const isValid = await verifyMessage({
address,
message,
signature,
});
console.log("Signature valid:", isValid);
return isValid;
}
```
## Verify Typed Data Signatures (EIP-712)
```typescript theme={null}
import { verifyTypedData } from "viem";
async function verifyTypedDataSignature(
address: `0x${string}`,
domain: any,
types: any,
primaryType: string,
message: any,
signature: `0x${string}`
) {
const isValid = await verifyTypedData({
address,
domain,
types,
primaryType,
message,
signature,
});
console.log("Signature valid:", isValid);
return isValid;
}
```
## Next Steps