CRII: SaTC: Privacy vs. Accountability--Usable Deniability and Non-Repudiation for Encrypted Messaging Systems

CRII:SaTC:隐私与责任——加密消息系统的可用否认性和不可否认性

基本信息

  • 批准号:
    2348181
  • 负责人:
  • 金额:
    $ 17.5万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2024
  • 资助国家:
    美国
  • 起止时间:
    2024-05-15 至 2026-04-30
  • 项目状态:
    未结题

项目摘要

End-to-end encrypted messaging apps are used by billions of people, globally. Encryption by itself, however, does not guarantee people’s privacy, accountability, and safety. Sometimes safety goals require plausible deniability: for conversations that might be compromising, it can useful to send a message and have the receiver know who sent it, but not be able to prove who the sender was to others. Sometimes accountability goals require non-repudiation: for on-the-record conversations, a sender may want to be able to prove that they, or their partner, sent a message even if the partner claims otherwise and tries to alter the conversation transcript. This project’s goal is to help people understand and make good choices about when to choose deniability and when to choose non-repudiation and develop messaging app features that make it easy to make those choices. Through this, the project will advance knowledge around how people make sense of and use cryptography, and people’s practical ability to effectively and safely communicate. The project is organized around two parallel interface design activities, one focused on interfaces for deniability, and one on interfaces for non-repudiation. For deniability, the team will develop interaction techniques that allow users to alter the content, timing, and authorship of messages in a transcript, leveraging underlying cryptographic techniques that support those edits. For non-repudiation, the team will develop interaction techniques that help people cryptographically sign messages using keys tied to their identity. Both interfaces will be tested through a series of user studies that address (1) people’s ability to use the tools, (2) their ability to understand the implications of using tools for deniability and non-repudiation, and (3) to use them in conversational contexts. The work will be carried out with a number of undergraduate and graduate students, and research interns, providing valuable and needed training for a future cybersecurity workforce.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.
全球有数十亿人使用端到端加密消息应用程序,但是加密本身并不能保证人们的隐私、责任和安全。对于发送消息并让接收者知道是谁发送的,但无法向其他人证明发送者是谁,有时问责制目标需要不可否认性:对于记录在案的对话,发送者可能希望能够做到这一点。到证明他们或他们的合作伙伴发送了一条消息,即使合作伙伴另有声明并试图更改对话记录。该项目的目标是帮助人们理解何时选择否认性以及何时选择不可否认性并做出正确的选择。开发消息应用程序功能,使这些选择变得容易,该项目将增进人们如何理解和使用密码学的知识,以及人们有效和安全通信的实际能力。该项目是围绕两个并行界面设计组织的。活动,其中一项重点关注接口否认性,以及不可否认性界面,该团队将开发交互技术,允许用户改变记录中消息的内容、时间和权限,利用支持这些编辑的底层加密技术。团队将开发交互技术,帮助人们使用与其身份相关的密钥对消息进行加密签名。这两个界面将通过一系列用户研究进行测试,这些研究涉及(1)人们使用工具的能力,(2)他们的能力。理解使用可否认性和不可否认性工具的含义的能力,以及(3)在对话环境中使用它们这项工作将由许多本科生和研究生以及研究实习生进行,提供有价值和必要的培训。该奖项反映了 NSF 的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

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Joshua Reynolds其他文献

High-affinity mutant Interleukin-13 targeted CAR T cells enhance delivery of clickable biodegradable fluorescent nanoparticles to glioblastoma
高亲和力突变体 Interleukin-13 靶向 CAR T 细胞增强可点击生物可降解荧光纳米颗粒向胶质母细胞瘤的递送
  • DOI:
    10.1016/j.bioactmat.2020.04.011
  • 发表时间:
    2020-05-07
  • 期刊:
  • 影响因子:
    18.9
  • 作者:
    Gloria B. Kim;Virginia Aragon;Lauren N. R;olph;olph;Hanwen Jiang;Joshua Reynolds;B. Webb;A. Madhankumar;Xiaojun Lian;J. Connor;Jian Yang;C. Dong
  • 通讯作者:
    C. Dong
In Situ Synthesis of an Aptamer-Based Polyvalent Antibody Mimic on the Cell Surface for Enhanced Interactions between Immune and Cancer Cells.
在细胞表面原位合成基于适体的多价抗体模拟物,以增强免疫细胞和癌细胞之间的相互作用。
  • DOI:
    10.1002/anie.202004206
  • 发表时间:
    2020-05-14
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Peng Shi;Xuelin Wang;B. Davis;James Coyne;C. Dong;Joshua Reynolds;Yong Wang
  • 通讯作者:
    Yong Wang
Constitutive knockout of interleukin-6 ameliorates memory deficits and entorhinal astrocytosis in the MRL/lpr mouse model of neuropsychiatric lupus
  • DOI:
    10.1186/s12974-024-03085-9
  • 发表时间:
    2024-04-10
  • 期刊:
  • 影响因子:
    9.3
  • 作者:
    Joshua Reynolds;Michelle W. Huang;Yaxi Li;M. Meineck;Tamara Moeckel;J. Weinmann;Ch;ra Mohan
  • 通讯作者:
    ra Mohan

Joshua Reynolds的其他文献

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