Echomix: a Strong Anonymity System with Messaging

• URL: http://arxiv.org/abs/2501.02933v2
• Date: Tue, 07 Jan 2025 12:01:11 GMT
• Title: Echomix: a Strong Anonymity System with Messaging
• Authors: Ewa J Infeld, David Stainton, Leif Ryge, Threebit Hacker,
• Abstract summary: Echomix is a practical mix network framework and a suite of associated protocols. It is distinguished from other anonymity systems by a resistance to traffic analysis by global adversaries. It features relatively low latency and bandwidth overhead.
• Score: 0.0
• License:
• Abstract: Echomix is a practical mix network framework and a suite of associated protocols providing strong metadata privacy against realistic modern adversaries. It is distinguished from other anonymity systems by a resistance to traffic analysis by global adversaries, compromised contacts and network infrastructure, quantum decryption algorithms, and statistical and confirmation attacks typical for multi-client messaging setting. It is implemented as Katzenpost, a robust software project, and used in multiple deployed systems, and features relatively low latency and bandwidth overhead. The contributions of this paper are: (1) Improvements on leading mix network designs, supported by rigorous analysis. These include solutions to crucial vulnerabilities to traffic analysis, malicious servers and active attacks. (2) A cryptographic group messaging protocol with strong metadata protection guarantees and reliability. (3) Hybrid post-quantum nested packet encryption.

Related papers

• Post-Quantum Key Agreement Protocols Based on Modified Matrix-Power Functions over Singular Random Integer Matrix Semirings [0.0]
  Post-quantum cryptography is essential for securing digital communications against threats posed by quantum computers. This paper introduces two novel post-quantum key agreement protocols that can be easily implemented on standard computers.
  arXiv  Detail & Related papers  (2025-01-04T14:01:09Z)
• MIETT: Multi-Instance Encrypted Traffic Transformer for Encrypted Traffic Classification [59.96233305733875]
  Classifying traffic is essential for detecting security threats and optimizing network management. We propose a Multi-Instance Encrypted Traffic Transformer (MIETT) to capture both token-level and packet-level relationships. MIETT achieves results across five datasets, demonstrating its effectiveness in classifying encrypted traffic and understanding complex network behaviors.
  arXiv  Detail & Related papers  (2024-12-19T12:52:53Z)
• Securing Legacy Communication Networks via Authenticated Cyclic Redundancy Integrity Check [98.34702864029796]
  We propose Authenticated Cyclic Redundancy Integrity Check (ACRIC) ACRIC preserves backward compatibility without requiring additional hardware and is protocol agnostic. We show that ACRIC offers robust security with minimal transmission overhead ( 1 ms)
  arXiv  Detail & Related papers  (2024-11-21T18:26:05Z)
• Towards efficient and secure quantum-classical communication networks [47.27205216718476]
  There are two primary approaches to achieving quantum-resistant security: quantum key distribution (QKD) and post-quantum cryptography (PQC) We introduce the pros and cons of these protocols and explore how they can be combined to achieve a higher level of security and/or improved performance in key distribution. We hope our discussion inspires further research into the design of hybrid cryptographic protocols for quantum-classical communication networks.
  arXiv  Detail & Related papers  (2024-11-01T23:36:19Z)
• Toward Mixture-of-Experts Enabled Trustworthy Semantic Communication for 6G Networks [82.3753728955968]
  We introduce a novel Mixture-of-Experts (MoE)-based SemCom system. This system comprises a gating network and multiple experts, each specializing in different security challenges. The gating network adaptively selects suitable experts to counter heterogeneous attacks based on user-defined security requirements. A case study in vehicular networks demonstrates the efficacy of the MoE-based SemCom system.
  arXiv  Detail & Related papers  (2024-09-24T03:17:51Z)
• A Quantum of QUIC: Dissecting Cryptography with Post-Quantum Insights [2.522402937703098]
  QUIC is a new network protocol standardized in 2021. It was designed to replace the TCP/TLS stack and is based on UDP. This paper presents a detailed evaluation of the impact of cryptography on QUIC performance.
  arXiv  Detail & Related papers  (2024-05-15T11:27:28Z)
• Improving Privacy-Preserving Techniques for Smart Grid using Lattice-based Cryptography [1.4856472820492366]
  SPDBlock is a blockchain-based solution ensuring privacy, integrity, and resistance to attacks. It detects and prosecutes malicious entities while efficiently handling multi-dimensional data transmission. Performance tests reveal SPDBlock's superiority in communication and computational efficiency over traditional schemes.
  arXiv  Detail & Related papers  (2024-04-17T19:51:52Z)
• Coding-Based Hybrid Post-Quantum Cryptosystem for Non-Uniform Information [53.85237314348328]
  We introduce for non-uniform messages a novel hybrid universal network coding cryptosystem (NU-HUNCC) We show that NU-HUNCC is information-theoretic individually secured against an eavesdropper with access to any subset of the links.
  arXiv  Detail & Related papers  (2024-02-13T12:12:39Z)
• A Survey and Comparative Analysis of Security Properties of CAN Authentication Protocols [92.81385447582882]
  The Controller Area Network (CAN) bus leaves in-vehicle communications inherently non-secure. This paper reviews and compares the 15 most prominent authentication protocols for the CAN bus. We evaluate protocols based on essential operational criteria that contribute to ease of implementation.
  arXiv  Detail & Related papers  (2024-01-19T14:52:04Z)
• Distributed Information-theoretical Secure Protocols for Quantum Key Distribution Networks against Malicious Nodes [15.200383830307915]
  Quantum key distribution (QKD) networks are expected to enable information-theoretical secure (ITS) communication over a large-scale network. Current research on QKD networks primarily addresses passive attacks conducted by malicious nodes such as eavesdropping. We suggest a novel paradigm, inspired by distributed systems, to address the active attack by collaborate malicious nodes in QKD networks.
  arXiv  Detail & Related papers  (2023-02-14T11:53:22Z)
• Practical quantum multiparty signatures using quantum-key-distribution networks [0.0]
  We develop an unconditionally secure signature scheme that guarantees authenticity and transferability of arbitrary length messages in a quantum key distribution network. We provide a comprehensive security analysis of the developed scheme, perform an optimization of the scheme parameters with respect to the secret key consumption, and demonstrate that the developed scheme is compatible with the capabilities of currently available QKD devices.
  arXiv  Detail & Related papers  (2021-07-27T17:41:40Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.