Securing Electronic Transactions Using SHA-1 Secure Hash Algorithm (PDF) Software Methods to Achieve Robust 1-Wire(R) Communication in iButton(R) Applications (PDF) Protect Your R&D Investment with Secure Authentication (PDF) White Paper 9: Are SHA-1 Devices Still Secure Enough? (PDF) Maxim Digital Monetary Certificates (PDF) Secure Access Control Through Challenge and Response Authentication (PDF) Advanced 1-Wire Network Driver (PDF) White Paper 3: Why are 1-Wire SHA-1 Devices Secure? (PDF) Understanding the DSSHA1 Synthesizable SHA-1 Coprocessor (PDF) Understanding the DS1WM Synthesizable 1-Wire Bus Master (PDF) Reference Design of a 1-Wire Bidirectional Voltage-Level Translator for 1.8V to 5V (PDF) Passwords in SHA Authentication (PDF) Alternatives to the DS1991L MultiKey iButton(R) (PDF) What Is an iButton Device? (PDF) White Paper 1: SHA Devices Used in Small Cash Systems (PDF) White Paper 8: 1-Wire(R) SHA-1 Overview (PDF) White Paper 4: Glossary of 1-Wire SHA-1 Terms (PDF) Challenge and Response with 1-Wire(R) SHA Devices (PDF)