NTP Security by Allan Liska

Author:Allan Liska
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

Flaws in NTP Encryption and Authentication

Version 4 of NTP introduced a number of improvements in the encryption process used by NTP for authentication and integrity checking . This is an important distinction: NTP does not maintain a facility to encrypt NTP traffic itself. Instead, NTP encryption is used only for the authentication process. Therefore, it is almost impossible to separate NTP encryption from the authentication process and vice versa.

Note

There are versions of NTP that do support encrypted communication, but the reference build, which is what this book has focused on because it is the most widely deployed, does not. Chapter 6 will discuss a number of NTP daemon variants that support encrypted communication.

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