Next generation energy harvesting secure microcontroller for biometric cards

November 29, 2021 // By Nick Flaherty
Next generation energy harvesting secure microcontroller for biometric cards
The ST31N600 secure microcontroller integrates energy harvesting and biometric security using The latest ARM SecurCore processor

STMicroelectronics has launched its next generation 40nm secure microcontroller using the latest ARM SecurCore processor and support for energy harvesting.

ST is a high volume manufacturer of chips for contact and contactless payment cards, ID cards, and transport ticketing. The ST31N600 integrates circuitry for energy harvesting and additional connectivity used by biometric and dynamic card verification (dCVV) applications, enabling battery-free smartcards to provide enhanced user authentication in contactless and online transactions. It is based around the  60MHz SecurCore SC000 core which is built on the Cortex-M0 core and the Thumb-2 instruction set with additional security features to help to protect against advanced forms of attack.

The ST31N600 meets EMV ISO 7816, ISO 14443, and ISO 18092 standards for contact and contactless cards and lets designers securely connect various types of peripherals to introduce value-added card features.

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“The ST31N600 is the starting point for great advances in smartcards, with its strong security and features that enable easy-to-use and innovative authentication mechanisms for payments,” said Laurent Degauque, Marketing Director, Secure Microcontroller Division, STMicroelectronics. “Showcasing this device at Trustech 2021, we will demonstrate secure biometric payment based on STPay-Topaz-Bio and dCVV for safe online transactions.”

STPay-Topaz-Bio is a ready-to-use payment solution that adds the security of biometric cardholder authentication to the speed and convenience of contactless transactions. This Biometric System-on-Card (BSoC) solution is based on ST31N600 with an ultra-low-power STM32L4 microcontroller, both embedded in an EMV (Eurocard Mastercard Visa) module. The ST31N600 hosts payment applications, biometric-template matching and energy harvesting to power the system.

The same ST31N600 product is also suitable for ecommerce payment based on dCVV technology that provides a dynamic code refresh on each EMV transaction without needing an external battery or clock timer.

ST is showing a BSoC based


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