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Attribute-based Signatures for Unbounded Circuits in the ROM and Efficient Instantiations from Lattices
Attribute-based signatures generic constructions lattices
2018/1/11
In this work, we affirmatively close the gap between ABS schemes based on bilinear maps and lattices by constructing the first lattice-based ABS scheme for unbounded circuits in the random oracle mode...
A Framework for Efficient Adaptively Secure Composable Oblivious Transfer in the ROM
cryptographic protocols Oblivious Transfer
2017/10/12
Oblivious Transfer (OT) is a fundamental cryptographic protocol that finds a number of applications, in particular, as an essential building block for two-party and multi-party computation. We constru...
Cryptography from Compression Functions: The UCE Bridge to the ROM
random-oracle model indifferentiability multi-stage games
2016/1/8
This paper suggests and explores the use of UCE security for the task of turning VIL-ROM schemes
into FIL-ROM ones. The benefits we offer over indifferentiability, the current leading method for this...
Chosen-Ciphertext Secure Fuzzy Identity-Based Key Encapsulation without ROM
chosen-ciphertext security hybrid encryption fuzzy identity based encryption
2009/6/3
We use hybrid encryption with Fuzzy Identity-Based Encryption (Fuzzy-IBE) schemes, and present the first and efficient fuzzy identity-based key encapsulation mechanism (Fuzzy-IB-KEM) schemes which are...