# IAuthVerifier

## Methods

### msgAuth

```solidity
function msgAuth(bytes _authData) external view returns (bool authenticated)
```

Authentication library to allow the validator network to execute cross-chain messages.

#### Parameters

| Name       | Type  | Description                                       |
| ---------- | ----- | ------------------------------------------------- |
| \_authData | bytes | A bytes32 address encoded via abi.encode(address) |

#### Returns

| Name          | Type | Description                                                                |
| ------------- | ---- | -------------------------------------------------------------------------- |
| authenticated | bool | returns true if bytes data submitted and decoded to the address is correct |

### setNodeGroup

```solidity
function setNodeGroup(address _nodegroup) external nonpayable
```

Permissioned method to support upgrades to the library

#### Parameters

| Name        | Type    | Description                                          |
| ----------- | ------- | ---------------------------------------------------- |
| \_nodegroup | address | address which has authentication to execute messages |