NDSS2026

Enhancing Legal Document Security and Accessibility with TAF

Renata Vaderna, Dušan Nikolić, Patrick Zielinski, David Greisen, BJ Ard, Justin Cappos

被引用 1 次

摘要

Many of these sites lack essential safeguards such as cryptographic signatures, checksums, timestamps, versioning, or audit mechanisms. They also provide no way for mirrors or users to independently verify that the content they access matches what was originally published. As a result, a single server-side mistake or an attack such as ransomware or account compromise can silently alter the legal record, leaving courts, citizens, and businesses with no way to validate what the law originally said. At the same time, digital access to the law has become essential. From renewing a driver license to filing taxes, citizens increasingly expect digital access to government services and legal information. Yet digital law repositories, which serve millions of daily requests, still lag far behind modern softwareupdate systems in integrity and security, which routinely use cryptographic signatures, version tracking, and multi-party trust models to prevent tampering [5]- [7] . A. Motivation Legal systems must preserve not just the current version of the law, but also its precise wording at past points in time, as courts often rely on historical texts to interpret or apply precedent. [8], [9] . By comparison, most other fields do not demand this level of historical precision or permanence. Academic papers and books are generally static once published, and prior versions are rarely cited or preserved. Even source code repositories such as Git, [10] only weakly enforce the ordering of commits to different branches [11] . Legal documents, by contrast, are living texts-frequently updated, with past versions retaining legal significance. The Uniform Electronic Legal Material Act (UELMA) [12] , enacted in over 20 U.S. states, formalizes many of these concerns. It affirms that electronic legal materials must carry the same trust as their physical counterparts and remain verifiable and accessible over time. Taken together, these legal, institutional, and technical realities make the ability to retrieve and verify every prior version of a legal document not just desirable, but foundational.