[Cryptography] Really good ideas, harsh reality, tailored covertraffic

[Paul Wouters]

On Sun, 30 Aug 2020, Peter Fairbrother wrote:

> Tailored covertraffic is covertraffic where an observer can't say with any 
> certainty, based on all past observations and all other link-based evidence 
> available to him, that any piece of traffic is real traffic  - as it could 
> also have been plausibly generated by the tailored covertraffic generating 
> mechanism.

https://tools.ietf.org/html/draft-ietf-ipsecme-iptfs-01

    This document describes a mechanism to enhance IPsec traffic flow
    security by adding traffic flow confidentiality to encrypted IP
    encapsulated traffic.  Traffic flow confidentiality is provided by
    obscuring the size and frequency of IP traffic using a fixed-sized,
    constant-send-rate IPsec tunnel.  The solution allows for congestion
    control as well.


Paul