通过加密 ClientHello 的开放 TLS 参数区分流量

IF 0.4 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Communications Technology and Electronics Pub Date : 2023-12-01 DOI:10.1134/s1064226923120173

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引用次数: 0

摘要

摘要流量分类（TC）是许多为流量提供服务质量（QoS）的网络框架的关键部分。加密 TC 算法通常使用服务器名称指示（SNI）字段，该字段表示客户端与之建立连接的服务器的域名，是流量类别的明确标记。然而，作为 TLS 1.3 协议的补充，新的加密客户问候（ECH）扩展使 TC 变得更加复杂，因为 TLS 握手过程中的大部分信息（包括 SNI）都被加密了。有了 ECH，使用开放 TLS 参数的 TC 算法的准确性大大降低。考虑到剩余的开放 TLS 参数，本文研究了加密流量的不可区分性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Indistinguishability of Traffic by Open TLS Parameters with Encrypted ClientHello

Abstract

Traffic Classification (TC) is a key part of many network frameworks that provide Quality of Service (QoS) for traffic. Encrypted TC algorithms often use the Server Name Indication (SNI) field, which indicates the domain name of the server to which the client establishes a connection, and which is a clear marker of the traffic category. However, the new Encrypted ClientHello (ECH) extension, which supplements the TLS 1.3 protocol significantly complicates TC because most of the messages of the TLS handshake become encrypted, including SNI. With ECH, the accuracy of TC algorithms that use open TLS parameters significantly degrades. This paper studies the indistinguishability of the encrypted traffic considering the remaining open TLS parameters.

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来源期刊

Journal of Communications Technology and Electronics 工程技术-电信学

CiteScore

1.00

自引率

20.00%

发文量

170

审稿时长

10.5 months

期刊介绍： Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.