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Mix network wire protocol specification Yawning Angel David Stainton

Abstract

This document defines the Katzenpost mix network wire protocol for use in all network communications to, from, and within the Katzenpost Mix Network.

Conventions used in this document

The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SH...


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Contact voucher specification Threebit Hacker Leif Ryge

Abstract

In order to join or initiate a conversation securely, participants need to exchange cryptographic key material. To address this problem, we created a slightly unusual design: contact vouchers.

Voucher design

In many systems, an invitation to comm...


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Thin client specification David Stainton

Abstract

This document describes the design of the new Katzenpost mixnet thin client. In particular we discuss its multiplexing and privilege-separation design elements as well as the protocol used by the thin-client library.

Introduction

A Katzenpost mixnet client has se...


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Sphinx cryptographic packet format specification Yawning Angel George Danezis Claudia Diaz Ania Piotrowska David Stainton

Abstract

This document defines the Sphinx cryptographic packet format for decryption mix networks, and provides a parameterization based around generic cryptographic primitives types. This document does not intr...


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Sphinx packet replay detection David Stainton

Abstract

This document defines the replay detection for any protocol that uses the Sphinx cryptographic packet format. This document is meant to serve as an implementation guide and to document the existing replay protection for deployed mix networks.

Terminology

The followin...


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