Security & Smart Card ICs --Secure Authentication: CryptoAuthentication

Applications

The AT88SA-ADK1 gives developers a tool they can directly use to develop applications to protect confidential files, encrypt downloads, perform two factor logon, or prevent software pirating. Complete source code for the AVR is included with the documentation for the kit, along with schematic, gerber files and bill of materials.

Supply VoltageIO VoltageStandby CurrentHash AlgorithmKey SizeData RateSerial NumberSamples Avail.Demo Kits Avail.

2.5V 5.5V

1.8V 5.5V

<100 na

SHA-256

256 bits

27K bits/sec

48 bits

Yes

Yes

Complete System Solution - (Kit information, libraries, documentation and support)
, the AT88SA ADK1 evaluation kit is for the AT88SA102 CryptoAuthentication device. It includes an ATTINY85 microcontroller and a convenient USB interface allowing user to understand and experiment with CryptoAuthentication on their personal computer.

Single Pin Interface Simple software interface using any microcontroller requires only a single GPIO. Host and multiple clients share same pin.

Smallest Package 3 pin SOT23 fits in the most space sensitive applications.

Robust Physical Security Integrated metal shields, voltage and frequency detectors, watchdog timer, and internal memory encryption.

Secure Personalization Full support of strong encryption for OEM secrets allows chips to be initialized at third party subcontractors without worry.

Straightforward Command Set 256 bit challenge generates 256 bit response, plus only 3 other runtime commands. Allows easy use across a wide range of application scenarios.

World Class Algorithm First authentication chip using SHA-256 hash algorithm. 256 bit key length prevents exhaustive attacks.

The CryptoAuthentication family is based on the latest US Government recommended SHA-256 hashing algorithm for superior algorithm security. Every CryptoAuthentication device contains a pre-programmed serial number which is guaranteed to be unique, and storage for a 256 bit secret key.

CryptoAuthentication An extremely cost-effective space-efficient hardware authentication chip designed to securely validate a wide variety of physical or logical elements in virtually all microprocessor based systems: