IAX4.5Kb CryptoAuthentication Memory Token

Featured Product from Datakey

More Info Email Supplier Request A Quote

The Datakey IAX4.5Kb CryptoAuthentication memory token utilizes Microchip’s ATSHA204A IC, part of their CryptoAuthentication family of high-security hardware authentication ICs. The IAX4.5Kb memory token takes the ATSHA204A’s security features and puts them into a physically robust portable memory device, enabling embedded applications, like:

•     Secure Storage/Transfer of Keys, Certificates, Passwords
•     Secure Credential with Unique, Read-Only Serial Number
•     Crypto Ignition Key (CIK)
•     Device Authentication (Anti-Counterfeit) with Countdown Limit Use
•     Secure Boot and Secure Download Firmware Update
•     Secure Feature Upgrade/Enable

The token’s internal IC contains a 512-byte (4096-bit) Data Zone of EEPROM memory that is divided into 16 slots. Each 32-byte (256-bit) slot can be configured for read-only or read/write access in either clear or encrypted modes. There is also a 64-byte One Time Programmable (OTP) Zone. Data may be written until the zone is locked. The OTP zone can also be used to track usage, where once a bit has been flipped it cannot be changed back. The IC also includes a unique 9-byte (72-bit) non-changeable serial number. The ATSHA204A also features a random number generator, a secure challenge-response protocol for host/memory token authentication and a SHA-256 hash algorithm for data encryption. The IC also incorporates security features to detect tampering and thwart attacks.

The memory token uses solid over-molded construction using a rugged composite that protects the internal IC from harsh environments. The token features redundant contacts so it can be inserted into the receptacle with either side up.  The memory tokens are available in six standard colors.

Optional extension boards are available that allow the Datakey CryptoAuthentication memory tokens to be used with the Microchip CryptoAuthentication SOIC starter kit (and ATSAMD21-XPRO development board).

CryptoAuthentication is a trademark of Microchip Technologies Incorporated in the USA and other countries and is used under license.