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Computer Science > Cryptography and Security

arXiv:2308.02202 (cs)
[Submitted on 4 Aug 2023 (v1), last revised 7 Aug 2023 (this version,
v2)]

Title:SoK: The Ghost Trilemma

Authors:S.Mukherjee, S.Ravi, P.Schmitt, B.Raghavan
Download a PDF of the paper titled SoK: The Ghost Trilemma, by
S.Mukherjee and 3 other authors
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    Abstract: Trolls, bots, and sybils distort online discourse and
    compromise the security of networked platforms. User identity is
    central to the vectors of attack and manipulation employed in
    these contexts. However it has long seemed that, try as it might,
    the security community has been unable to stem the rising tide of
    such problems. We posit the Ghost Trilemma, that there are three
    key properties of identity -- sentience, location, and uniqueness
    -- that cannot be simultaneously verified in a
    fully-decentralized setting. Many fully-decentralized systems --
    whether for communication or social coordination -- grapple with
    this trilemma in some way, perhaps unknowingly. In this
    Systematization of Knowledge (SoK) paper, we examine the design
    space, use cases, problems with prior approaches, and possible
    paths forward. We sketch a proof of this trilemma and outline
    options for practical, incrementally deployable schemes to
    achieve an acceptable tradeoff of trust in centralized trust
    anchors, decentralized operation, and an ability to withstand a
    range of attacks, while protecting user privacy.

Comments:    22 pages with 1 figure and 8 tables
Subjects:    Cryptography and Security (cs.CR); Computers and Society
             (cs.CY)
ACM classes: D.4.6; H.5; K.4
Cite as:     arXiv:2308.02202 [cs.CR]
             (or arXiv:2308.02202v2 [cs.CR] for this version)
             https://doi.org/10.48550/arXiv.2308.02202
             Focus to learn more
             arXiv-issued DOI via DataCite

Submission history

From: Sulagna Mukherjee [view email]
[v1] Fri, 4 Aug 2023 08:36:43 UTC (267 KB)
[v2] Mon, 7 Aug 2023 21:56:58 UTC (267 KB)
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