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Key-Range Attribute-Based Signatures for Range of Inner Product and Its Applications
May 25, 2023, 7:06 a.m. |
IACR News www.iacr.org
ePrint Report: Key-Range Attribute-Based Signatures for Range of Inner Product and Its Applications
Masahito Ishizaka
In attribute-based signatures (ABS) for range of inner product (ARIP), recently proposed by Ishizaka and Fukushima at ICISC 2022, a secret-key labeled with an $n$-dimensional vector $\mathbf{x}\in\mathbb{Z}_p^n$ for a prime $p$ can used to sign a message under an $n$-dimensional vector $\mathbf{y}\in\mathbb{Z}_p^n$ and a range $[L,R]=\{L, L+1, \cdots, R-1, R\}$ with $L,R\in\mathbb{Z}_p$ iff their inner product is within the range, i.e., $\langle \mathbf{x}, \mathbf{y} \rangle …
abs applications eprint report key prime product report secret signatures
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