COVER DEDICATION I would like to dedicate this project to the National Security Agency. For better or worse, good or evil, what follows would not have been created without you. Because sometimes upholding constitutional ideas just isn’t enough; sometimes you have to uphold the actual Constitution. May god bless these United States of America. May she once again become the land of the free and home of the brave. Ladar Levison CONTENTS Cover ......................................................................................................................................................................................................... 1 Dedication ................................................................................................................................................................................................. 2 Contents .................................................................................................................................................................................................... 3 Figures ...................................................................................................................................................................................................... 11 Overview ................................................................................................................................................................................................ 12 Part 1: Abstract ..................................................................................................................................................................................... 14 Part 2: Terminology .............................................................................................................................................................................. 15 Part 3: System Architecture ................................................................................................................................................................ 19 Core operational directives of DIME ............................................................................................................................................... 19 DIME Functional Components .......................................................................................................................................................... 21 Transport......................................................................................................................................................................................... 21 Message object .............................................................................................................................................................................. 23 Classic email agents ...................................................................................................................................................................... 23 Privacy processing agents................................................................................................................................................................ 24 Organization Privacy Agent (OPA) .............................................................................................................................................. 24 User Privacy Agent (UPA) ............................................................................................................................................................ 24 Signet lookup services .................................................................................................................................................................. 24 Part 4: Management Record ............................................................................................................................................................... 26 Location .............................................................................................................................................................................................. 26 Text Records ...................................................................................................................................................................................... 27 Security ............................................................................................................................................................................................... 27 Refresh ................................................................................................................................................................................................ 27 Fields ................................................................................................................................................................................................... 28 Field Definitions ................................................................................................................................................................................. 28 3 Primary ............................................................................................................................................................................................ 29 TLS ................................................................................................................................................................................................... 29 Syndicates ...................................................................................................................................................................................... 30 Deliver ............................................................................................................................................................................................. 30 Version ............................................................................................................................................................................................ 30 Expiry .............................................................................................................................................................................................. 30 Policy ............................................................................................................................................................................................... 31 Subdomain ...................................................................................................................................................................................... 32 Examples ............................................................................................................................................................................................. 32 Part 5: Signet Data Format .................................................................................................................................................................. 34 Endianness .......................................................................................................................................................................................... 34 Header Layout .................................................................................................................................................................................... 34 Field Layout ........................................................................................................................................................................................ 35 Defined Field Layout ......................................................................................................................................................................... 35 Undefined Field Layout ..................................................................................................................................................................... 35 Field Ordering ..................................................................................................................................................................................... 36 Encoding ............................................................................................................................................................................................. 36 Signet Field Introduction ................................................................................................................................................................... 36 Reserved Field Types ........................................................................................................................................................................ 37 Common Fields .................................................................................................................................................................................. 38 Name Field...................................................................................................................................................................................... 38 Address Field .................................................................................................................................................................................. 38 Province Field ................................................................................................................................................................................