# computeSharedSecretKey

Computes a shared secret key with the provided public key.

### Usage

```ts
const userPublicKey = '0x...';
const sharedSecretKey = await encryptor.computeSharedSecretKey(userPublicKey);
```

### Returns

`Promise<string | undefined>`

A promise that resolves to the computed shared secret key or undefined if the computation failed.

### Parameters

#### publicKey

* **Type** `string`

The public key with which the shared secret key is computed.