Status: In Production
Fast, Secure, and Cost Effective Symmetric Authentication
The Microchip SHA-based CryptoAuthentication crypto element devices have been architected to provide flexible user-configured security to enable a wide range of authentication models. The ATSHA204A is the first device in the SHA device group. The ATECC108A and ATECC508A are supersets of the ATSHA204A and thus upward compatible. As with all CryptoAuthentication devices, the ATSHA204A is easy to design in with no crypto expertise required.
Secure Hash Algorithm (SHA) algorithms are widely used in most cryptographic systems and remain an important component in most modern authentication protocols. These devices support the SHA-256 standard. The ATSHA204A is the most cost-effective solution in the Microchip CryptoAuthentication portfolio. It integrates the SHA-256 hash algorithm with a 4.5Kb EEPROM and provides robust hardware authentication using secure key/data storage. The tiny packaging and a single-wire interface make the device ideal for handheld electronic systems and any space-constrained embedded system.
CryptoAuthentication devices in the SHA mode include client and host security capabilities that offload key storage and algorithm execution from the microcontroller, significantly reducing system cost and complexity. SHA based symmetric authentication is fast relative to asymmetric approaches, making the ATSHA204A a good choice with speed (and/or cost) are important considerations. CryptoAuthentication devices have full metal shields over all of the internal circuitry, so that if an attacker cuts or short circuits any trace in the shield, the product stops functioning. Additional security features include internal clocks and voltage generation, encrypted memories, tamper detection, and fully secure production test methodologies. With the ATSHA204A implementing host-side security to provide a full system solution is now easier than ever.
The Microchip's ATSHA204A is a full turnkey security device. It includes a 4.5Kb EEPROM divided into 16 slots. This array can be used for storage of keys, miscellaneous read/write, read-only, password or secret data, and consumption tracking. Access to the various sections of memory can be restricted in a variety of ways and then the configuration locked to prevent changes.
Access to the chip is through a standard I2C interface at speeds up to 1Mb/sec. The chip also supports a single-wire interface that can reduce the number of GPIOs required on the system processor and/or reduce the number of pins on connectors. It is compatible with most UART or serial I/O controllers. System integration is eased with a wide supply voltage range and an ultra-low sleep current of less than 100nA.
and Hash-Based Message Authentication Code (HMAC) Options Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
Guaranteed Unique 72-bit Serial Number
Internal, High-quality Random Number Generator (RNG)
4.5Kb EEPROM for Keys and Data
512 bit OTP (One Time Programmable) Bits for Fixed Information Multiple I/O Options̶
UART-compatible High-Speed, Single-Wire Interface
1MHz I2C Interface
1.8V to 5.5V Communications Voltage Range <150nA Sleep Current
Secure Download and Boot Ecosystem Control
The ATSHA206A TRUST board feature the ATSHA206A parasitically powered secure element with a single wire interface. This secure element has been designed as a low cost easy to use symmetric authentication device. Primary applications will be for Disposable Authentication, Ecosystem Control and Anti-cloning applications. As a member of the Microchip Trust Family of Products the...
The CryptoAuthentication™ SOIC Xplained Pro Starter (CryptoAuth-XSTK) kit consists of a SAMD21-XPRO and an AT88CKSCKTSOIC-XPRO socket board along with Crypto Authentication sample devices. The board works with Microchip's Crypto Evaluation Studio (ACES) out of the box and can be used for evaluation and development wih CryptoAuthentication Devices. The kit supports all Crypto...
CryptoAuth XPRO-B evaluation and development kit is an add-on board to the XplainedPro evaluation platforms to support the ATSHA204A, ATAES132A, ATECC508A and ATECC608A in embedded design applications. CryptoAuth XPRO-B Pro has been developed to allow fast system prototyping within the Xplained and XplainedPro evaluation environment. This kit gives engineers, developers, and...
The AT88CKSCKTSOIC-XPRO is a Microchip XPRO extension kit for Microchip CryptoAuthentication™ devices in an 8-pin SOIC Package. The board attaches to any Microchip Micro-controller board that supports the XPRO interface. The boards operate with the following Microchip Devices
The AT88CKSCKTUDFN-XPRO is a Microchip XPRO extension kit for Microchip CryptoAuthentication™ devices in an 8-pin UDFN package. The board attaches to any Microchip Micro-controller board that supports the XPRO interface. The boards operate with the following Microchip Devices
ATECC108A/508A/608A - Ecliptic Curve Security devices with I2C or Single Wire Interface
For pricing and availability, contact Microchip Local Sales.