Katzenpost: Traffic analysis resistant messaging

Zenaan Harkness zen at freedbms.net
Sat Nov 24 03:01:57 PST 2018

On Fri, Nov 23, 2018 at 03:52:19AM -0500, grarpamp wrote:
> https://katzenpost.mixnetworks.org/
> https://github.com/katzenpost/
> Katzenpost
> “An especially problematic excision of the political is the
> marginalization within the cryptographic community of the
> secure-messaging problem, an instance of which was the problem
> addressed by David Chaum. Secure-messaging is the most fundamental
> privacy problem in cryptography: how can parties communicate in such a
> way that nobody knows who said what. More than a decade after the
> problem was introduced, Rackoff and Simon would comment on the
> near-absence of attention being paid to the it.” (Phillip Rogaway, The
> Moral Character of Cryptographic Work)
> Goals
>     to prevent a sufficiently global passive adversary from learning
> who is communicating with whom
>     to detect active attacks against the network infrastructure
>     hide message content from participating providers, hide recipient
> identity from the sender’s provider, and the sender identity from the
> recipient’s provider
>     reliable out of order delivery
>     support for various “message based” use cases like ‘instant
> messaging’, ‘e-mail’, and ‘crypto currency’ anonymization

That's a sufficient summary. +1

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