DS28S60 DeepCover® Cryptographic Coprocessor

Analog Devices DS28S60 DeepCover® Cryptographic Coprocessor easily integrates into embedded systems, enabling confidentiality, authentication, and integrity of information. With a fixed command set and no device-level firmware development required, the DS28S60 makes it fast and easy to implement full security for IoT devices. Communication with the device is performed using the industry-standard SPI slave interface at up to 20Mbps with a simple set of commands that provide a comprehensive security toolbox utilizing HW-based cryptographic blocks. As a coprocessor to an SPI- SPI-interfaced host controller, the command functionality includes ECDSA-P256 signature and verification, SHA-256-based digital signature, and AES-128 packet encryption/decryption. It includes ECDHE key exchange for session key generation and access to high-quality random numbers. A NIST SP800-90B compliant true random number generator (TRNG) is integrated for on-chip cryptographic operations and provides random data and nonces to the host controller if required. Nonvolatile storage for secrets, certificates, public/private keys, and application-specific sensitive data is supported with 3.6KB of secured flash memory.