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Tagged Chameleon Hash from Lattice and Application to Redactable Blockchain
May 30, 2023, 6:54 a.m. |
IACR News www.iacr.org
ePrint Report: Tagged Chameleon Hash from Lattice and Application to Redactable Blockchain
Yiming Li, Shengli Liu
Chameleon hash (CH) is a trapdoor hash function. Generally it is hard to find collisions, but with the help of trapdoor, finding collisions becomes easy. CH plays an important role in converting a conventional blockchain to a redactable one. However, most of the existing CH schemes are too weak to support redactable blockchain. The currently known CH schemes serving for redactable blockchain have the …
application blockchain eprint report find function hard hash hash function important report role
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