WatchTower: Fast, Secure Mobile Page Loads Using Remote Dependency Resolution
WatchTower: Fast, Secure Mobile Page Loads Using Remote Dependency Resolution
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DOI：
10.1145/3307334.3326104
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发表时间：
2019-06
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影响因子：
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通讯作者：
R. Netravali;Anirudh Sivaraman;James W. Mickens;H. Balakrishnan
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作者：
R. Netravali;Anirudh Sivaraman;James W. Mickens;H. Balakrishnan
远程依赖分辨率（RDR）是一种用于减少移动页面加载时间的代理驱动的方案；代理使用本地浏览器加载了请求的页面，从而通过快速代理 - 原始链接获取页面的资源，而不是客户端的慢速链接链接。在本文中，我们描述了有效的RDR代理的两个基本挑战：加密HTTPS内容的普及不断增长，事实是，由于时间依赖时间依赖的网络条件和页面属性，RDR代理实际上可以增加负载时间。我们通过引入针对HTTPS流量的新的，安全的代理方案来解决这些问题，并实现Watchtower，Watchtower是一种选择性的代理系统，该系统使用网络条件和页面结构的动态模型，仅在预测其帮助时才能启用RDR。 Watchtower加载第21.2％-41.3％的速度比最新的代理和服务器推动系统快，同时保留端到端的HTTPS安全性。
Remote dependency resolution (RDR) is a proxy-driven scheme for reducing mobile page load times; a proxy loads a requested page using a local browser, fetching the page's resources over fast proxy-origin links instead of a client's slow last-mile links. In this paper, we describe two fundamental challenges to efficient RDR proxying: the increasing popularity of encrypted HTTPS content, and the fact that, due to time-dependent network conditions and page properties, RDR proxying can actually increase load times. We solve these problems by introducing a new, secure proxying scheme for HTTPS traffic, and by implementing WatchTower, a selective proxying system that uses dynamic models of network conditions and page structures to only enable RDR when it is predicted to help. WatchTower loads pages 21.2%-41.3% faster than state-of-the-art proxies and server push systems, while preserving end-to-end HTTPS security.