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)