Product Overview
●The CryptoCompanion™ Chip is designed as the mate to Atmel’s CryptoRF and CryptoMemory chips, collectively referred to in the remainder of this document as CRF.
●CryptoCompanion makes extensive use of the SHA-1 hash algorithm as specified in
●http://www.itl.nist.gov/fipspubs/fip180-1.htm and elsewhere. In this document, the nomenclature SHA-1(a, b, c) means to concatenate a, b & c in that order and then pad them to a block size of 64 bytes before computing the digest. CryptoCompanion generates SHA-1 digests of single round datasets at a time.
●Features
●• Companion Chip to CryptoRF® and CryptoMemory®
● - Securely implements host algorithms
● - Securely stores host secrets
● - Verifies Host Firmware Digests
●• High Security Features in Hardware
● - CryptoMemory and CryptoRF F2 Algorithm
● - SHA-1 Standard Cryptographic Algorithm
● - 64-bit Mutual Authentication Protocol (Under License of ELVA)
● - Permanently Coded Serial Numbers
● - High Quality Random Number Generator (RNG)
● - Metal Shield Over Memory
● - Data Scrambling in Nonvolatile Memory
● - Delay Penalties to prevent Systematic Attacks
● - Reset Locking to prevent Illegal Power Cycling
● - Voltage and Frequency Monitors
●• Host-side Crypto Functions
● - Authentication Challenge Generation
● - Device Challenge Response
● - Message Authentication Codes (MAC) Generation
● - Data Encryption and Decryption
● - Secure Authentication Key Management
●• Secure Storage and Key Management
● - Up to 16 sets of 64-bits Diversified Host Keys
● - Eight Sets of Two 24-bit Passwords
● - Secure and Custom Personalization
● - Up to 232-Byte Read/Write Configurable User Data Area
●• Nonvolatile Up Counters
● - Four sets Unidirectional Counters
● - 6.4 Million Maximum Counts Per Counter
●• Application Features
● - Low Voltage Supply: 2.7V – 3.6V
● - 2-Wire Serial Interface (TWI, 5V Compatible)
● - Standard 8-lead SOIC Plastic Package, Green compliant (exceeds RoHS)
●• High Reliability
● - Endurance : 100,000 Cycles
● - Data Retention : 10 years
● - ESD Protection : 3,000 V min. HBM
