Collaborative Research: SaTC: CORE: Large: Privacy-Preserving Abuse Prevention for Encrypted Communications Platforms

协作研究：SaTC：核心：大型：加密通信平台的隐私保护滥用预防

基本信息

批准号：
2120651
负责人：
Thomas Ristenpart
金额：
$ 262.82万
依托单位：
Cornell University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-08-01 至 2026-07-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2120651&HistoricalAwards=false
关键词：
Collaborative Research SaTC CORE Large

项目摘要

This project will address the immense challenge of mitigating abuse in communication services where interactions between the parties are private and fully encrypted. Such services have become popular for individual and group communications, and their security features help protect individual privacy and rights. But these platforms are also used for harmful and illegal purposes such as organizing violent activities or sharing child sexual abuse materials. In addition, users on these platforms are subject to abuse such as hate, harassment, and misinformation. The encryption used by such services makes detecting and blocking harmful content extremely difficult. This work will develop new trust and safety approaches to enable secure and trustworthy communications that preserve privacy while mitigating abuses. The project will aim to provide (1) technical advances in developing novel cryptographic tools and techniques to support mitigation of abuse; (2) human-centered advances in understanding perceptions and expectations of privacy and abuse mitigation, as well as creating novel designs for individual and community interactions; and (3) legal, policy, and regulatory advances to support and enable these abuse-mitigating features.The research effort is organized around two overlapping thrusts: algorithmic-driven approaches and community-driven approaches. The algorithmic approaches will focus on developing better cryptographic tools for privacy-aware abuse detection in encrypted settings, such as detection of viral, fast-spreading content. These designs will be informed by a human-centered approach to understanding people's privacy expectations, and supported by legal analyses that ensure tools are consistent with applicable privacy and content-moderation laws. In the second thrust, the community approaches will focus on providing communities with the tools they need to address abuse challenges in encrypted settings. Given the challenges and pitfalls of centralized approaches for abuse mitigation, the project will explore building distributed capabilities to support communities and groups on these platforms. An importantly ingredient is working with communities and community moderators to understand their needs, as well as guide design of legal and policy frameworks to support new approaches.Taken together, this project will address the challenge of abuse mitigation on encrypted platforms, while preserving privacy protections for individuals and communities. It will especially consider the perspectives of individuals and communities most in need of privacy and abuse protection. The work, if successful, should fuel new innovations in the design of encrypted messaging platforms, and in basic research in cryptography, human-centered design, and Internet law.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目将解决缓解滥用在交流服务中的巨大挑战，在各方之间的互动是私人且完全加密的。此类服务在个人和团体沟通中变得很受欢迎，其安全功能有助于保护个人隐私和权利。但是这些平台也用于有害和非法目的，例如组织暴力活动或共享儿童性虐待材料。此外，这些平台上的用户受到滥用，例如仇恨，骚扰和错误信息。此类服务使用的加密使检测和阻止有害内容极为困难。这项工作将开发新的信任和安全方法，以实现安全且值得信赖的通信，在减轻滥用虐待的同时保留隐私。该项目旨在（1）开发新型的加密工具和技术以支持缓解滥用的技术进展；（2）以人为本的理解隐私和滥用滥用的看法和期望以及为个人和社区互动创造新颖的设计；（3）法律，政策和监管进步支持和实现这些滥用滥用的特征。研究工作是围绕两个重叠的推力组织的：算法驱动的方法和社区驱动的方法。算法方法将着重于开发更好的加密工具，以在加密设置中（例如检测病毒，快速播放的内容）中的隐私感知滥用检测。这些设计将通过以人为本的方法来理解人们的隐私期望，并得到确保工具与适用的隐私和内容修改法律一致的法律分析的支持。在第二个推力中，社区方法将着重于为社区提供应对加密环境中滥用挑战所需的工具。鉴于集中式减轻滥用方法的挑战和陷阱，该项目将探索建立分布式能力，以支持这些平台上的社区和群体。一个重要的成分是与社区和社区主持人合作，以了解其需求，并指导法律和政策框架的设计以支持新方法。与之共同解决，该项目将解决缓解加密平台的滥用挑战，同时保留对个人和社区的隐私保护。特别会考虑最需要隐私和虐待保护的个人和社区的观点。这项工作，如果成功的话，应该在加密消息平台的设计中加剧新的创新，以及以人为中心的设计和互联网法律的基础研究，这奖反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的评估来通过评估来支持的。