> ## Documentation Index
> Fetch the complete documentation index at: https://litprotocol-feat-rusk-sdk.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# signMessageWithEncryptedKey

# Function

> **signMessageWithEncryptedKey**(`params`)

Decrypts a stored wrapped key inside a Lit Action and signs an arbitrary message.

## Parameters

<ParamField path="params.pkpSessionSigs" type="SessionSigsMap" required />

<ParamField path="params.litClient" type="LitClient" required />

<ParamField path="params.network" type="'evm' | 'solana'" required />

<ParamField path="params.id" type="string" required />

<ParamField path="params.messageToSign" type="string | Uint8Array" required />

<ParamField path="params.userMaxPrice" type="bigint">
  Optional `executeJs` price cap.
</ParamField>

## Returns

<ResponseField name="signature" type="string">
  Raw signature string (`0x` hex for EVM, base58 for Solana).
</ResponseField>

## Example

```ts theme={null}
const signature = await wrappedKeysApi.signMessageWithEncryptedKey({
  pkpSessionSigs,
  litClient,
  network: 'evm',
  id,
  messageToSign: 'hello from wrapped keys',
});
```