Smart Payment Card with Transaction Info Locked to Payment Method

This patent describes a smart payment card that can use various payment methods like magnetic stripes or NFC, and generates unique, single-use payment information specific to the chosen interface for each transaction.

What it covers

This payment card device is shaped like a standard card and includes a memory, a processor, and multiple ways to connect to a payment reader. These connection options, or 'interfaces,' can include a smart card chip reader, a magnetic stripe, a radio frequency (RF) interface like NFC, or even information visible on the card's surface. For each transaction, the card generates special 'limited-use payment information.' This information is designed to work only through the specific interface chosen for that payment. For example, if you tap the card using NFC, the payment information generated will only be valid for an NFC transaction and cannot be used if someone tries to replay it through a magnetic stripe reader.

What it doesn't cover

• —Does not cover payment cards where the same payment information can be used across multiple different interfaces (e.g., magnetic stripe data also working for NFC).
• —Does not cover payment cards that do not generate limited-use payment information for transactions.
• —Does not cover payment cards that only support a single payment interface, such as a traditional magnetic stripe-only card.
• —Does not cover systems where the limited-use payment information is not specifically tied to the interface used for the transaction.
• —Does not cover payment cards that do not contain a processor and memory to manage the limited-use information.

The clever bit

The clever part is generating payment information that is not only temporary but also specifically locked to the exact communication method (like NFC or magnetic stripe) used for that single transaction, making it useless if intercepted and replayed on a different interface.

Why it matters

If implemented, this technology could significantly enhance the security of payment card transactions by making intercepted payment data useless for unauthorized purchases on different systems. It offers a flexible solution, allowing a single card to adapt securely to various types of payment terminals, from older magnetic stripe readers to modern contactless systems. This approach could help reduce financial fraud and improve consumer confidence in digital payments.

Real-world examples

• 1.Advanced smart credit cards
• 2.Digital payment tokens
• 3.Secure contactless payment systems
• 4.Multi-interface payment cards