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[Home](./index.md) &gt; [@digitalpersona/authentication](./authentication.md) &gt; [PushOtpAuth](./authentication.pushotpauth.md)

## PushOtpAuth class

A one-time password authentication API based on Push Notifications (Push OTP). Push OTP supports only authentication. Identification is not supported.

<b>Signature:</b>

```typescript
export declare class PushOtpAuth extends Authenticator 
```

## Constructors

|  Constructor | Modifiers | Description |
|  --- | --- | --- |
|  [(constructor)(authService)](./authentication.pushotpauth.(constructor).md) |  | Constructs a new Push OTP authentication API object. |

## Methods

|  Method | Modifiers | Description |
|  --- | --- | --- |
|  [authenticate(identity)](./authentication.pushotpauth.authenticate.md) |  | Authenticates the user using a Push Notification on the user's registered mobile device. |