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- research-articleFebruary 2020
Efficient chameleon hash functions in the enhanced collision resistant model
Information Sciences: an International Journal (ISCI), Volume 510, Issue CPages 155–164https://doi.org/10.1016/j.ins.2019.09.001AbstractChameleon hash functions are collision resistant when only the hashing keys of the functions are known. In particular, without the knowledge of the secret information, the chameleon hash function is merely like a regular cryptographic ...
- ArticleDecember 2019
Structure-Preserving Signatures on Equivalence Classes from Standard Assumptions
AbstractStructure-preserving signatures on equivalence classes (SPS-EQ) introduced at ASIACRYPT 2014 are a variant of SPS where a message is considered as a projective equivalence class, and a new representative of the same class can be obtained by ...
- research-articleNovember 2019
Short tightly secure signatures for signing a vector of group elements: A new approach
Theoretical Computer Science (TCSC), Volume 795, Issue CPages 225–239https://doi.org/10.1016/j.tcs.2019.07.001AbstractWe give a new approach to build tightly secure signatures for signing a vector of group elements in a bilinear group. We illustrate its usefulness to construct efficient signature schemes by giving two new constructions of partially ...