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Nested Cover-Free Families for Unbounded Fault-Tolerant Aggregate Signatures. (arXiv:2208.00371v1 [cs.CR])
Aug. 2, 2022, 1:20 a.m. | Thais Bardini Idalino, Lucia Moura
cs.CR updates on arXiv.org arxiv.org
Aggregate signatures are used to create one short proof of authenticity and
integrity from a set of digital signatures. However, one invalid signature in
the set invalidates the entire aggregate, giving no information on which
signatures are valid. Hartung et al. (2016) propose a fault-tolerant aggregate
signature scheme based on combinatorial group testing. Given a bound $d$ on the
number of invalid signatures among $n$ signatures to be aggregated, this scheme
uses $d$-cover-free families to determine which signatures are invalid. …
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