Secure PTP Using TLS Key Management

Wednesday | 2:30 - 2:50 pm

Lately there has been considerable discussion regarding the need to have cryptographic security for PTP. The specification of the optional AUTHENTICATION TLV for PTP messages in the upcoming revision of IEEE 1588 supplies one of the key aspects of a secure PTP solution. A frequent request from both network operators and PTP enabled equipment designers is to avoid creating another key exchange and refresh standard. Since Transport Layer Security (TLS) is commonly used to secure management interfaces like https, and is part of the upcoming Network Time Security standard for secure NTP, it clearly satisfies the key management reuse requirement. In this presentation I describe the use of TLS for key management in secure PTP.