# Authentication and Activation for Device Wallets
source: https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md

A cardholder decides to use a digital wallet on their device. They add the payment card details to the digital wallet. The tokenization request sent to MDES is authorized, but it requires further authentication in accordance with MDES implementation. To proceed, cardholders must authenticate themselves with MDES/Issuer through the MDES platform, utilizing the authentication method specific to the token type, token requester, and issuer.

The cardholder device wallet is authenticated using one of the following methods:

* [Activation Code for token activation](https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md#activation-code-based-authentication)
* [Issuer App and TAV for token activation](https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md#issuer-app-and-tav-for-token-activation)
* [Issuer App and Customer Service API for token activation](https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md#issuer-app-and-customer-service-api-for-token-activation)
* [Customer Service for token activation](https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md#customer-service-for-token-activation)
* [Authentication using EMV 3-D Secure](https://developer.mastercard.com/mdes-pre-digitization/documentation/use_case/pre-tokenization-authentication/index.md#authentication-using-emv-3-d-secure)

## Activation Code for token activation {#activation-code-for-token-activation}

Cardholder selects Activation Code based authentication.
Diagram yellow-path

## Issuer App and TAV for token activation {#issuer-app-and-tav-for-token-activation}

Cardholder selects the Issuer App to activate a token and the issuer passes TAV in response to the wallet.
Diagram issuer-app-tav

## Issuer App and Customer Service API for token activation {#issuer-app-and-customer-service-api-for-token-activation}

Cardholder selects the Issuer App to activate a token and the issuer uses Customer Service API to activate the token.
Diagram issuer-app-cs

## Customer Service for token activation {#customer-service-for-token-activation}

Cardholder selects Customer Service to activate a token.
Diagram auth-cs

## Authentication using EMV 3-D Secure {#authentication-using-emv-3-d-secure}

Cardholder selects EMV 3-D Secure authentication method to activate a token.
Diagram EMV_3ds

### Endpoints {#endpoints}


API Reference: `GET /authorizeService`


API Reference: `GET /requestActivationMethods`


API Reference: `GET /deliverActivationCode`


API Reference: `GET /notifyServiceActivated`

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