DS28E35 Datasheet PDF | Analog Devices

Analog Devices DS28E35

The DS28E35 also features a one-time settable, nonvolatile 17-bit decrement-on-command counter, which can be used to keep track of the lifetime of the object to which the DS28E35 is attached. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. This unique ROM ID is used as a fundamental input parameter for cryptographic operations and also serves as an electronic serial number within the application.

Part No.	DS28E35
Datasheet	DS28E35 Download
Manufacturer	Analog Devices
Description	DeepCover Secure Authenticator
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GENERAL DESCRIPTION

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. The DeepCover Secure Authenticator (DS28E35) provides a highly secure solution for a host controller to authenticate peripherals based on the industry standard (FIPS 186) public-key based Elliptic Curve Digital Signature Algorithm (ECDSA). The ECDSA engine computes keys and signatures using a pseudorandom curve over a prime field according to the “Standards for Efficient Cryptography (SEC)”. The private and public key can be computed by the device or installed by the user and optionally locked. Separate memory space is set aside to store and lock a public-key certificate as it is needed to verify authenticity. In addition to ECDSA-related memory, the device has 1024 bits of user memory that is organized as four pages of 256 bits. Page protection modes include write protection, read protection, and one-time-programmable (OTP) memory emulation modes.