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A Generic Construction for Revocable Identity-Based Encryption with Subset Difference Methods
Revocable identity-based encryption Subset difference method Generic construction
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2019/7/15
To deal with dynamically changing user's credentials in identity-based encryption (IBE), providing an efficient key revocation method is a very important issue. Recently, Ma and Lin proposed a generic...
Efficient Lattice-Based Zero-Knowledge Arguments with Standard Soundness: Construction and Applications
Lattice Zero-Knowledge Argument
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2019/6/26
We provide new zero-knowledge argument of knowledge systems that work directly for a wide class of language, namely, ones involving the satisfiability of matrix-vector relations and integer relations ...
Generic Construction of Linkable Ring Signature
ring signature linkable ring signature generic construction
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2019/4/11
We propose a generic construction of linkable ring signature from any compatible ring signature scheme and one-time signature scheme. Our construction has both theoretical and practical interest. In t...
A Generic Construction of Revocable Identity-Based Encryption
Generic Construction Revocable Identity-Based Encryption
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2019/3/21
Revocable identity-based encryption (RIBE) is an extension of IBE that supports a key revocation mechanism, which is important when deployed an IBE system in practice. Boneh and Franklin presented the...
Leakage Resilience of the Duplex Construction
duplex sponge security proof
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2019/2/28
Side-channel attacks, especially differential power analysis (DPA), pose a serious threat to cryptographic implementations deployed in a malicious environment. One way to counter side-channel attacks ...
The Relationship between the Construction and Solution of the MILP Models and Applications
MILP Gurobi PRESENT
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2019/1/26
The automatic search method based on Mix-integer Linear Programming (MILP) is one of the most common tools to search the distinguishers of block ciphers. For differential analysis, the byte-oriented M...
Construction of Lightweight MDS Matrices from Generalized Feistel Structures
Lightweight cryptography MDS matrix Generalized Feistel Structures
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2018/11/12
This paper investigates the construction of lightweight MDS matrices with generalized Feistel structures (GFS). The approach developed by this paper consists in deriving MDS matrices from the product ...
BISON - Instantiating the Whitened Swap-Or-Not Construction
Block Ciphers Differential Cryptanalysis Whitened Swap-Or-Not
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2018/11/2
We give the first practical instance – BISON – of the Whitened Swap-Or-Not construction. After clarifying inherent limitations of the construction, we point out that this way of building block ciphers...
A Simple Construction of iO for Turing Machines
Turing Machines obfuscate grows
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2018/8/28
We give a simple construction of indistinguishability obfuscation for Turing machines where the time to obfuscate grows only with the description size of the machine and otherwise, independent of the ...
Efficient Construction of the Boomerang Connection Table
BCT Cryptanalysis
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2018/6/27
Recently, the Boomerang Connection Table was introduced by Cid et al.~as a tool to better evaluate the probability of a boomerang distinguisher. To compute the BCT of an nn-bit to nn-bit S-box, the in...
High-Resolution EM Attacks Against Leakage-Resilient PRFs Explained - And An Improved Construction
Leakage-resilient cryptography PRF high-resolution localized EM attacks
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2018/1/17
Achieving side-channel resistance through Leakage Resilience (LR) is highly relevant for embedded devices where requirements of other countermeasures such as e.g. high quality random numbers are hard ...
Fully Verifiable Secure Delegation of Pairing Computation: Cryptanalysis and An Efficient Construction
Verifiable and secure delegation bilinear maps cryptographic protocols
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2017/12/6
We address the problem of secure and verifiable delegation of general pairing computation. We first analyze some recently proposed pairing delegation schemes and present several attacks on their secur...
Post-quantum security of the sponge construction
Post-quantum cryptography hash functions Sponge construction
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2017/8/16
We investigate the post-quantum security of hash functions based on the sponge construction. A crucial property for hash functions in the post-quantum setting is the collapsing property (a strengtheni...
A Novel Cryptographic Framework for Cloud File Systems and CryFS, a Provably-Secure Construction
foundations applications implementation
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2017/8/16
Using the cloud to store data offers many advantages for businesses and individuals alike. The cloud storage provider, however, has to be trusted not to inspect or even modify the data they are entrus...
Universal Construction of Cheater-Identifiable Secret Sharing Against Rushing Cheaters without Honest Majority
secret sharing universal construction rushing cheater
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2017/5/26
For conventional secret sharing, if cheaters can submit possibly forged shares after observing shares of the honest users in the reconstruction phase, they can disturb the protocol and reconstruct the...