EAGER: Collaborative Research: E-Witness: Preserve and Prove Forensic Soundness of Digital Evidence

EAGER：协作研究：电子证人：保存并证明数字证据的法证可靠性

• 批准号: 1742915
• 负责人: Nasir Memon
• 金额: $ 12.5万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-10-01 至 2020-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1742915&HistoricalAwards=false
• 关键词: EAGER; Collaborative; Research; Witness; Preserve

This project seeks to explore the challenges of developing E-Witness - a system that allows civilians to use their smart devices to collect forensically sound multimedia evidence. In order to be considered authentic and forensically sound, a digital evidence needs to have a proof of being untampered and the time and location of the event needs to be attested in a way that it is immutable. Such research on forensically sound and anonymous evidence gathering is hard due to various challenging requirements: user friendly application interface, unbiased, collusion-resistant and privacy-preserving time-stamping service as well as accurate location attestation. The effectiveness of each aspect needs to be proved to build a robust system. The overarching reward of this project is its ability to record and validate facts in real-time while bringing forensic accountability to such collected evidence. The building blocks of E-Witness consist of: (a) a secure smart phone application, (b) a time-stamping service implemented as a public blockchain maintained by individual miners, and (c) a location-attestation service that provides confidence on the truthfulness of the location reported by the evidence device. A prototype will be developed and performance analysis will be performed over a testbed deployment to ensure correctness of all components of the system. A pilot study involving University users will be performed to identify the challenges of a large-scale deployment.

该项目旨在探索开发电子见证的挑战，电子见证是一种允许平民使用智能设备收集法医学上可靠的多媒体证据的系统。为了被认为是真实的和取证上可靠的，数字证据需要有未被篡改的证明，并且需要以不可变的方式证明事件的时间和地点。由于各种具有挑战性的要求，对法医合理和匿名证据收集的研究很困难：用户友好的应用程序界面、公正、防共谋和保护隐私的时间戳服务以及准确的位置证明。需要证明每个方面的有效性才能建立一个强大的系统。该项目的首要回报是它能够实时记录和验证事实，同时对收集到的证据进行取证责任。电子见证的构建块包括：(a) 安全的智能手机应用程序，(b) 作为由个体矿工维护的公共区块链实现的时间戳服务，以及 (c) 提供信任的位置证明服务证据装置报告的位置的真实性。将开发原型并在测试台部署上进行性能分析，以确保系统所有组件的正确性。将进行一项涉及大学用户的试点研究，以确定大规模部署的挑战。