[Home](./index.md) > [@digitalpersona/authentication](./authentication.md) > [SmartCardAuth](./authentication.smartcardauth.md) ## SmartCardAuth class Smart card authentication API. Smartcards supports only authentication with PIN. Identification is not supported. Signature: ```typescript export declare class SmartCardAuth extends Authenticator ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)(authService)](./authentication.smartcardauth.(constructor).md) | | Constructs a new smartcard authentication API object. | ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [authenticate(identity, cardData)](./authentication.smartcardauth.authenticate.md) | | Authenticates the user using a smartcard. |