Reports

The information in this section was originally hosted on the University of Delaware homepage for Professor David L. Mills, PhD. While much of it can be considered historical, it provides an overview of the design principles for NTP and related time synchronization technology.

Reports

Title Publication Date Format
Network Time Protocol Version 4 Reference and Implementation Guide June 1, 2006 PDF
The Autokey Security Architecture, Protocol and Algorithms January 1, 2006 PDF
The Autokey Security Architecture, Protocol and Algorithms February 1, 2003 RFC (PDF)
Abstract (PDF)
Body (PDF)
Public Key Cryptography for the Network Time Protocol May 1, 2000 Abstract (PDF)
Body (PDF)
A Survey of the NTP Network December 9, 1999 PDF
Highball: a High Speed, Reserved-Access, Wide Area Network August 2, 1998 PDF
Management of the Network Time Protocol (NTP) with SNMP November 23, 1997 PDF
A Precision Radio Clock for WWV Transmissions August 1, 1997 PDF
Clock Discipline Algorithms for the Network Time Protocol Version 4 March 3, 1997 Abstract (PDF)
Body (PDF)
Proposed Authentication Enhancements for the Network Time Protocol Version 4 October 3, 1996 Abstract (PDF)
Body (PDF)
Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI October 2, 1996 Abstract (PDF)
Body (PDF)
Network Time Protocol Version 4 Proposed Changes October 2, 1994 Abstract (PDF)
Body (PDF)
Appendices (PDF)
Unix Kernel Modifications for Precision Time Synchronization October 1, 1994 Abstract (PDF)
Body (PDF)
Precision Synchronization of Computer Network Clocks November 1, 1993 Abstract (PDF)
Body (PDF)
Appendix A (PDF)
Appendix B (PDF)
Appendix C (PDF)
Appendix D (PDF)
Modelling and Analysis of Computer Network Clocks May 2, 1992 Abstract (PDF)
Body (PDF)
A Computer-Controlled LORAN-C Receiver for Precision Timekeeping March 1, 1992 Abstract (PDF)
Body (PDF)
Appendix A (PDF)
Appendix B (PDF)
Appendix C (PDF)
Highball: a High Speed, Reserved-Access, Wide Area Network September 1, 1990 PDF
Network Time Protocol (Version 3) Specification, Implementation and Analysis June 1, 1990 Abstract (PDF)
Body (PDF)
Appendices (PDF)
Measured Performance of the Network Time Protocol in the DARPA/NSF Internet System September 3, 1989 Abstract (PDF)
Body (PDF)
Network Time Protocol (Version 2) Specification and Implementation September 2, 1989 Abstract (PDF)
Body (PDF)
Internet Time Synchronization: the Network Time Protocol September 1, 1989 Abstract (PDF)
Body (PDF)