搜索结果: 271-285 共查到“知识库 军事学”相关记录15042条 . 查询时间(5.543 秒)
Fast Actively Secure Five-Party Computation with Security Beyond Abort
Secure Multiparty Computation Guaranteed Output Delivery Fairness
2019/7/26
Secure Multi-party Computation (MPC) with small population and honest majority has drawn focus specifically due to customization in techniques and resulting efficiency that the constructions can offer...
Another Look at Byzantine Fault Tolerance
cryptographic protocols Byzantine Fault Tolerance
2019/7/26
We review several solutions for the Byzantine Fault Tolerance (BFT) problem and discuss some aspects that are frequently overlooked by existing literatures. For example, PBFT and HotStuff BFT protocol...
SipHash is a family of ARX-based MAC algorithms optimized for short inputs. Already, a lot of implementations and applications for SipHash have been proposed, whereas the cryptanalysis of SipHash stil...
A Fast Characterization Method for Optical Fault Injection
Physical attacks Fault injection Fast space characterization
2019/7/26
Semi-invasive fault injection attacks, such as optical fault injection, are powerful techniques well-known by attackers and secure embedded system designers. When performing such attacks, the selectio...
Lilliput-AE is a tweakable block cipher submitted as a candidate to the NIST lightweight cryptography standardization process. It is based upon the lightweight block cipher Lilliput, whose cryptanalys...
Prototyping post-quantum and hybrid key exchange and authentication in TLS and SSH
post-quantum cryptography TLS SSH
2019/7/25
Once algorithms for quantum-resistant key exchange and digital signature schemes are selected by standards bodies, adoption of post-quantum cryptography will depend on progress in integrating those al...
A Coin-Free Oracle-Based Augmented Black Box Framework
Black Box Construction Zero-Knowledge Proof NIZK
2019/7/25
After the work of Impagliazzo and Rudich (STOC, 1989), the black box framework has become one of the main research domain of cryptography. However black box techniques say nothing about non-black box ...
Machine learning and side channel analysis in a CTF competition
key recovery deep learning machine learning
2019/7/25
Machine learning is nowadays supplanting or extending human expertise in many domains ranging from board games to text translation. Correspondingly, the use of such tools is also on the rise in comput...
A Tale of Three Signatures: practical attack of ECDSA with wNAF
ECDSA lattice techniques cryptanalysis
2019/7/25
Attacking ECDSA with wNAF implementation for the scalar multiplication first requires some side channel analysis to collect information, then lattice based methods to recover the secret key. In this p...
Invariant subspaces (Crypto'11) and subspace trails (FSE'17) are two related recent cryptanalytic approaches that led to new results on, e. g. PRINTCipher and AES. We extend the invariant subspace app...
A critique of game-based definitions of receipt-freeness for voting
E-voting receipt-freeness privacy
2019/7/24
We analyse three game-based definitions of receipt-freeness; uncovering soundness issues with two of the definitions and completeness issues with all three. Hence, two of the definitions are too weak,...
Reducing the Cost of Implementing AES as a Quantum Circuit
quantum cryptanalysis quantum circuit Grover’s algorithm AES
2019/7/24
To quantify security levels in a post-quantum scenario, it is common to use the quantum resources needed to attack AES as a reference value. Specifically, in NIST’s ongoing post-quantum standardizatio...
WIDESEAS: A lattice-based PIR scheme implemented in EncryptedQuery
Private Information Retrieval PIR homomorphic encryption
2019/7/24
We introduce the WIDESEAS protocol for lattice-based Private Information Retrieval (PIR), and we give performance numbers for its recent implementation in the EncryptedQuery open-source PIR software. ...
Bitcontracts: Adding Expressive Smart Contracts to Legacy Cryptocurrencies
Blockchain Smart Contracts Cryptocurrency
2019/7/24
In contrast to traditional contracts, cryptocurrency-based smart contracts can provide improved business automation and more transparency. However, not all cryptocurrencies support expressive contract...
Practical Attribute Based Inner Product Functional Encryption from Simple Assumptions
Functional Encryption Attribute Based Encryption Inner Product
2019/7/23
Functional encryption (FE) that bases on user attributes has many useful practical applications. For example, a company may only authorize department heads of other sections to query the average sale ...