AT88SC-DK1 Microchip

CRYPTOMEMORY POWERFUL SECURITY AT LOW COST By Eustace Asanghanwa, Crypto & RF Memory Applications Summary Many systems and products have the need to combat piracy or securely store information. Secure Microcontrollers satisfy this need at a high cost characterized by presence of unneeded features. CryptoMemory provides a low-cost alternative solution that focuses mainly on security. www.cryptomemory.com Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 TEL (408) 441-0311 FAX (408) 487-2600 Web Site: ATMELS CRYPTOMEMORY POWERFUL SECURITY AT LOW COST Table of Contents Problem and Motivation............................................................................ 3 CryptoMemory ........................................................................................... 4 Affordability ............................................................................................... 5 Competition................................................................................................ 6 Typical Applications.................................................................................. 6 Device Description .................................................................................... 7 Security Features ...........................................................................................................7 The Mutual Authentication Process ...............................................................................7 Anti-Counterfeit Capability..................................................................................... 8 Ability to Personalize the Device........................................................................... 8 Secure Storage of Secrets .................................................................................... 9 Key Diversification................................................................................................. 9 Dynamic Operation of Cryptographic Engine........................................................ 9 Random Number Enhanced Challenges............................................................... 9 Additional Data Protection Features ............................................................................10 Device Flexibility...........................................................................................................10 Multiple Zones for Multi-Application Support....................................................... 11 Common Feature Set .......................................................................................... 12 Choice of Security Levels and Options ............................................................... 12 Pin Compatibility with Atmel Serial EEPROM ..................................................... 12 Example............................................................................................................... 12 Physical Protection ................................................................................. 13 Packaging................................................................................................. 13 Help and Documentation ........................................................................ 13 2 5259A Crypto 06/07