Tokenization and digital wallet

Integrate your cards with leading digital wallets like Apple Pay and Google Pay to provide your customers with quick, convenient, and secure payment options. A digital wallet stores payment card information on mobile devices such as smartphones, tablets, or smartwatches, allowing cardholders to make contactless payments in physical stores or online.

Digital wallet adoption has been growing steadily, making it an essential feature for staying relevant and competitive in the market. Digital wallet users often experience early access to new payment innovations, making this integration a critical part of a modern payment solution.

How digital wallets work

The integration process involves several key players, each playing a specific role in enabling digital wallet payments:

Partner Application: The partner’s app where cardholders can add cards to digital wallets.
Wallet Providers: Apple Pay and Google Pay
Card Scheme Tokenization Services: Mastercard MDES and Visa VDEP, which handle the tokenization of card details.
Mynt: Mynt’s card issuing and processing partner, handling API integrations and secure data exchange.

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The integration process

The integration process involves several key players, each playing a specific role in enabling digital wallet payments:

Partner Application: The partner’s app where cardholders can add cards to digital wallets.
Wallet Providers: Apple Pay and Google Pay
Card Scheme Tokenization Services: Mastercard MDES and Visa VDEP, which handle the tokenization of card details.
Mynt: Mynt’s card issuing and processing partner, handling API integrations and secure data exchange.

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Process overview

The process begins with the cardholder enrolling their card into a digital wallet. Here’s a simplified flow of how this works:

Card Enrollment: The cardholder adds their card to a digital wallet through your app or directly in the wallet app. Mynt provides an API that delivers the necessary card credentials in a secure format.
Tokenization: The digital wallet interacts with the card scheme’s tokenization service, which exchanges the card details for a secure token. This token is then linked to the card through Mynt.
Transaction Process: Once the card is added to the digital wallet, the cardholder can use it for payments in stores and online. Transactions are processed via the card schemes and routed to Mynt for authorization.
Authorization: Mynt processes these transactions similarly to physical card payments, using the token as a secure substitute for the card number (PAN).

Digital wallet integration

Integrating with digital wallets can be done directly through your app (or Mynt’s white label app), offering a smooth and user-friendly experience:

In-App Enrollment: Enables cardholders to add their cards directly from your app by clicking a button such as “Add to Apple Pay.” This approach offers a seamless user experience and allows full control over the card's lifecycle within your app. The integration typically includes:
- Mynt Card API: To list eligible cards and obtain card IDs.
- Mynt Wallet API: To provide card credentials and activation data to the digital wallet.
- Digital Wallet SDK: For direct integration with the wallet provider.
- Cardholder Authentication (SCA): Validating that the cardholder is the legitimate owner during enrollment.
Direct Wallet Enrollment: Cardholders can also add their card directly through the digital wallet app by entering card details manually or using the app’s scan feature. During this process:
- Authentication: Mynt & Partner are responsible for verifying that the cardholder is the legitimate user, using SCA methods SMS OTP or through your app.

Customer authentication

Authentication is critical to ensure security during card enrollment, and it is required regardless of the enrollment method:

In-App Authentication: This occurs as part of the app’s user flow, using existing login credentials (SCA).
Direct Wallet Authentication: There are two methods available:
- Issuer App Authentication: Receive the authentication request and validate it through your app.
- SMS OTP: A one-time password sent to the customer via SMS, which they input into the digital wallet app.

Using a card in a digital wallet

Once a card is enrolled and tokenized, the cardholder can use it for payments across supported digital applications, websites, and physical stores. The payment process closely mirrors that of a physical card, with a few distinctions:

Tokenized Transactions: The digital wallet uses a token instead of the card number (PAN) for payments, which is then de-tokenized by the card schemes during transaction authorization.
Authorization and Clearing: Mynt processes these authorizations and clearing transactions using the token, with the underlying card number used as a reference. This allows Mynt to track which transactions were completed using the tokenized card.

Card renewal, reissue, and token udpdates

To maintain a seamless experience for cardholders, Mynt automatically manages the token status and updates during the card lifecycle:

Card Renewal: When a card is renewed (e.g., due to expiration), Mynt automatically updates the card’s expiration date with the card schemes. Card details in the digital wallet are updated instantly, ensuring continuous access to the updated card credentials.
Temporary Card Blocks: If a card is temporarily blocked due to suspected fraud or by user request, Mynt will automatically suspend the associated token. When the card is reactivated, the token resumes its active status, allowing the cardholder to continue using the digital wallet.
Card Reissue: If a card needs to be reissued (e.g., due to being lost or stolen), Mynt updates the token details with the new card credentials. This ensures that the customer can continue using their digital wallet without needing to re-enroll the card.
Card Terminated: When a card is permanently closed, Mynt triggers a request to the card schemes to deactivate the associated token, ensuring the card can no longer be used in digital wallets.

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Overview

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