ATAES132A中文资料Accessories Products数据手册Microchip规格书

描述 Description

Authorization, Key Management, and Memory Encryption

The first device in the AES family, the ATAES132A, is a high-speed, high-security, 32K Serial EEPROM that enables authentication and confidential nonvolatile data storage. It is a direct drop-in for industry standard Serial EEPROMS and is an easy way to add security to a system. The ATES132A includes a high-quality hardware Random Number Generator (RNG) paired with a Federal Information Processing Standards (FIPS) Deterministic Random Bit Generator (DRBG) to prevent replay attacks.This ATAES132A uses the industry standard Advanced Encryption Standard (AES) algorithm in the CCM mode (Counter and Cipher block chaining Message authentication code) making authentication, confidentiality, and data integrity checking easy.Data encryption and decryption can be easily performed for both internally stored data or for small external data packets (depending upon the configuration). Data encrypted by one AES device can be decrypted by another, and vice versa. The secure Serial EEPROM architecture of the ATAES132A and packages compatible with standard SPI and I2C EEPROM footprints allow direct insertion into many existing Serial EEPROM applications. A wide array of defense mechanisms are designed to prevent physical attacks on the device itself, as well as logical attacks on the data transmitted between the device and the system. All CryptoAuthentication devices, including the ATAES132A are equipped with secure personalization features to facilitate third-party product manufacturing.The ATAES132A crypto element with hardware-based key storage is a very fast high-security serial 32K EEPROM device that enables authentication and confidential nonvolatile data storage. It is a direct drop-in for industry standard Serial EEPROMS, and supports the Advanced Encryption Standard (AES) cryptography standard. The AES-128 cryptographic engine operates in AES-CCM mode to provide authentication, stored data encryption/decryption, and Message Authentication Codes (MACs). Data encryption/decryption can be performed for internally stored data or for small external data packets depending upon the configuration. Data encrypted by one ATAES132A device can be decrypted by another, and vice versa.Extended security functions are accessed by sending command packets to the ATAES132 using standard write instructions and reading responses using standard read instructions. The device incorporates multiple physical security mechanisms to prevent release of the internally stored secrets. The device's secure Serial EEPROM architecture and packages compatible with standard SPI and I2C EEPROM footprints allow insertion into many existing Serial EEPROM applications. Like all Microchip CryptoAuthentication devices the ATAES132A stores keys and other secret data in hardware protected by a range of physical and cryptographic countermeasures, making it far more secure than software or unprotected hardware storage mechanisms.

特性 Features

• 32Kb Standard Serial EEPROM User Memory (16 User Zones of 2Kb)
• AES Algorithm with 128-bit Keys
• AES-CCM for Authentication
• Secure Storage for 16 and 128 bit Keys
• Encrypted User Memory Read and Write
• FIPS Random Number Generator (RNG)
• 16 High-Endurance Monotonic EEPROM Counters
• Authentication Prior to Zone Access
• Read/Write, Encrypted, or Read-only User Zone Options
• SPI and I2C Interface Options
• 2.5V to 5.5V Supply,

简介

ATAES132A属于集成电路（IC）的专用IC。由制造生产的ATAES132A专用 IC专用专用集成电路 (IC) 或芯片设计用于执行特定功能。这个类别包括可寻址开关、空芯仪表驱动器、音视频开关、验证芯片、自动放电、时钟发生器、彩色扫描仪，以及各种应用所用的其他许多集成电路。