ATAES132A-MAHEQ-S

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The ATAES132A-MAHEQ-S is a secure nonvolatile memory device designed for various secure applications. It provides a secure storage location for secrets, such as passwords and digital certificates, as prevention from malicious tampering. Key features of the ATAES132A-MAHEQ-S include an array of 32K bits of memory, a unique 128-bit chip serial number, an 8-byte general-purpose internal EEPROM, hardware encryption, and an integrated cryptographic coprocessor. It also offers two communication interface options – I2C (up to 3.4 MHz) and SPI (up to 10 MHz).

Applications

The ATAES132A-MAHEQ-S is a secure memory device intended for use in secure applications such as secure boot, authentication, and key storage. It is ideally suited for a wide range of applications, including Electronic Voting Machines, Smartcards, TPMs, Automated Teller Machines, Access Control Systems, and Secure Manufacturing. It is also suitable for applications in the medical and healthcare industries that require secure storage of confidential data.

Hardware Architecture

The ATAES132A-MAHEQ-S has a 32KB nonvolatile memory divided into 8 sectors. It has an 8-byte EEPROM inside, as well as an integrated cryptographic processor that supports various cryptographic algorithms. The device is accessed through two different interfaces, I2C and SPI, which are used to access the internal data and to control the security features. It can be configured with up to four software-selectable access modes, amongst them a secure boot mode.

Working Principle

The ATAES132A-MAHEQ-S features hardware encryption, which is used to secure the contents of the memory. This is achieved by encrypting the data in the device before it is stored in the memory. The encryption key used is unique to each device, so it cannot be accessed by anyone other than the owner or authorized user. Additionally, the device contains an integrated cryptographic processor that supports various cryptographic algorithms.

The device also supports various authentication protocols to provide secure communication with the host. For instance, it can be configured to use token-based authentication, where the host device and the ATAES132A-MAHEQ-S must authenticate each other using pre-shared keys. Additionally, the device can be configured to use either digital certificates or challenge and response protocols for authentication.

The device is also capable of performing various cryptographic operations such as encryption, decryption, signing, and verification. These operations are performed using the integrated cryptographic processor, which is accessible through the I2C and SPI interfaces. Additionally, the device stores and manages shared secrets, which are used to authenticate itself and the host during communication.

Conclusion

The ATAES132A-MAHEQ-S is a secure nonvolatile memory device designed for secure applications. It features 32K bits of memory, a unique 128-bit chip serial number, an 8-byte internal EEPROM, hardware encryption, and an integrated cryptographic coprocessor. It is ideal for applications such as secure boot, authentication, and key storage, and is suitable for a wide range of applications in the medical, healthcare, and access control industries. The device features an array of security features, including hardware encryption, authentication protocols, and cryptographic operations. Additionally, it is capable of storing and managing shared secrets, which are used to authenticate the device and the host during communication.

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