AT97SC3204-H4M44-20

AT97SC3204-H4M44-20 application field and working principle

AT97SC3204-H4M44-20 is a secure microcontroller product manufactured by Atmel Corporation which is applicable in different application fields. It is especially suitable for conditions requiring both reliable performance and robust security, such as smart cards, biometric identifiers, network security, digital rights management and point-of-sale terminals. This microcontroller features Secure Data Zone Protection, Root of Trust Design and Utilities, Application Personalization and Security Locality.

Working Principle

As a secure microcontroller, the AT97SC3204-H4M44-20 works on layers within a secure operating system, providing multiple layers of security. It uses hardware-level security features to protect data stored within the root of trust, AES encryption for data transmission and verification, secure boot and image security, and secure key storage. The data it stores in its Secure Data Zone are stored in a non-volatile memory that cannot be erased or modified, and is segregated from other data that may be stored in RAM or other sources on the system. It also implements authentication mechanisms such as authentication of flash content, authentication of code signing, authentication of memory mapping and authentication of power supply.

Security Features

For security, the AT97SC3204-H4M44-20 implements several key features. These include a secure boot feature that verifies the integrity of the system program before running it; encrypts Initialization Vector (IV) and shared keys for secure communication; AES encryption for secure communication; secure image and key storage; and a secure data zone that is held in a non-volatile memory that cannot be erased or modified. The secure data zone also prevents any other data from being stored within the RAM, which ensures data remains secure even if the system is powered off. Also, it features secure software execution and secure key storage.

Application Field

The AT97SC3204-H4M44-20 is a secure, tamper-resistant microcontroller ideal for a range of different applications. In the digital rights management sector, the AT97SC3204-H4M44-20 helps to protect media content from unauthorised access or copying. In biometric identification systems, it ensures secure storage and verification of biometric data and prevents fraudulent identity theft or misuse. In network security, the microcontroller helps protect networks and systems from data theft, or malicious tampering. In point-of-sale terminals, it helps to ensure the secure processing of card transactions. And in smart cards, it ensures the secure storage and processing of personal data.

Conclusion

The AT97SC3204-H4M44-20 is a secure microcontroller product from Atmel Corporation which can be applied in various application fields such as network security, digital rights management and smart cards. It features several security features, including secure boot and encryption, secure image and key storage, and secure data zones. These features ensure the confidentiality and integrity of the data stored and processed within the system and help to protect against malicious tampering or theft.