Infineon microcontrollers offer security

Infineon Technologies has announced its latest high-security microcontroller family that utilises digital security features.

Infineon has also introduced a hardware security technology called 'Integrity Guard'.

With the 'Integrity Guard', security microcontrollers are equipped with 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.

The first principle of Infineon's 'Integrity Guard' is that no plain data is available on the chip.

The 'Integrity Guard' hardware security technology is available in Infineon's new security microcontroller family SLE 78.

Infineon developed the SLE 78 family and the 'Integrity Guard' for use in highly demanding chip card-based and security applications as called for in the payment and government identification areas.

After detecting an error or the attempt of an attack, the microcontroller can decide whether the operation is continued or an alarm is to be triggered and the operation automatically to be stopped.

With the 'Integrity Guard', a security microcontroller is equipped with full on-chip encryption over the core architecture and data path, including all memories (EEPROM, Flash, ROM, RAM), buses, caches and the two CPUs.

Encrypted signals are of no use to the attacker neither for manipulation nor for eavesdropping.

The two CPUs use fully hardware-encrypted calculation with different secret keys in both of the CPUs.

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