Infineon has announced availability of its latest high-security microcontroller (MCU) family that utilises advanced digital security features for chip card applications.
The company has also introduced a hardware security technology called Integrity Guard, which provides the security MCUs with comprehensive error-detection capabilities and full on-chip encryption over the complete data path which comprises the dual-CPU, all memories (EEPROM, Flash, ROM, RAM), caches and the buses.
Integrity Guard technology is available in Infineon’s new security microcontroller family SLE 78, specifically developed for use in highly demanding chip card-based and security applications as called for in the payment and government identification areas.
The dual-CPU approach allows error-detection even while processing, and detects whether a calculation was performed without errors. After detecting an error or attempted attack, the MCU can decide whether the operation is continued or an alarm is to be triggered and the operation automatically stopped. The two CPUs use fully hardware-encrypted calculation with each core possessing a unique secret key.
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