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Bootstrapping Consensus Without Trusted Setup: Fully Asynchronous Distributed Key Generation
threshold cryptography distributed cryptography asynchronous consensus
2019/9/16
In this paper, we present the first fully asynchronous distributed key generation (ADKG) algorithm as well as the first distributed key generation algorithm that can create keys with a dual (f,2f+1)&#...
ETHDKG: Distributed Key Generation with Ethereum Smart Contracts
Distributed Key Generation DKG Ethereum
2019/8/30
Distributed key generation (DKG) is a fundamental building block for a variety of cryptographic schemes and protocols, such as threshold cryptography, multi-party coin tossing schemes, public randomne...
Improved Multiplication Triple Generation over Rings via SHE
Secure Two-party Computation Beaver Multiplication Triples Somewhat Homomorphic Encryption
2019/5/29
An important characteristic of recent MPC protocols is an input independent preprocessing phase in which most computations are offloaded, which greatly reduces the execution overhead of the online pha...
Zero-knowledge SNARKs (zk-SNARKs) have recently found various applications in verifiable computation and blockchain applications (Zerocash), but unfortunately they rely on a common reference string (C...
MPCircuits: Optimized Circuit Generation for Secure Multi-Party Computation
Multi-party computation secure function evaluation logic synthesis
2019/3/13
Secure Multi-party Computation (MPC) is one of the most influential achievements of modern cryptography: it allows evaluation of an arbitrary function on private inputs from multiple parties without r...
SoK: Peigen -- a Platform for Evaluation, Implementation, and Generation of S-boxes
S-box Survey Design criteria
2019/3/1
In this paper, a platform named PEIGEN is presented to evaluate security, find efficient software/hardware implementations, and generate cryptographic S-boxes. Continuously developed for decades, S-bo...
BADGER - Blockchain Auditable Distributed (RSA) key GEneRation
digital signatures distributed cryptography implementation
2019/2/27
Migration of security applications to the cloud poses unique challenges in key management and protection: asymmetric keys which would previously have resided in tamper-resistant, on-premise Hardware S...
More Efficient Algorithms for the NTRU Key Generation using the Field Norm
lattice techniques public-key cryptography quantum cryptography
2019/1/9
NTRU lattices are a class of polynomial rings which allow for compact and efficient representations of the lattice basis, thereby offering very good performance characteristics for the asymmetric algo...
Excalibur Key-Generation Protocols For DAG Hierarchic Decryption
public key cryptography multiparty computation fully homomorphic encryption
2018/12/3
Public-key cryptography applications often require structuring decryption rights according to some hierarchy. This is typically addressed with re-encryption procedures or relying on trusted parties, i...
Secure Certification of Mixed Quantum States with Application to Two-Party Randomness Generation
quantum cryptography Mixed Quantum States
2018/11/8
We investigate sampling procedures that certify that an arbitrary quantum state on nn subsystems is close to an ideal mixed state φ⊗nφ⊗n for a given reference state φφ, up to errors on a f...
Fast Secure Multiparty ECDSA with Practical Distributed Key Generation and Applications to Cryptocurrency Custody
ECDSA threshold cryptography
2018/11/5
ECDSA is a standardized signing algorithm that is widely used in TLS, code signing, cryptocurrency and more. Due to its importance, the problem of securely computing ECDSA in a distributed manner (kno...
Adding Distributed Decryption and Key Generation to a Ring-LWE Based CCA Encryption Scheme
cryptographic protocols post-quantum cryptosystem
2018/11/2
We show how to build distributed key generation and distributed decryption procedures for the LIMA Ring-LWE based post-quantum cryptosystem. Our protocols implement the CCA variants of distributed dec...
4-bit crypto S-boxes: Generation with irreducible polynomials over Galois field GF(24) and cryptanalysis
public-key cryptography EPs
2018/6/13
4-bit crypto S-boxes play a significant role in encryption and decryption of many cipher algorithms from last 4 decades. Generation and cryptanalysis of generated 4-bit crypto S-boxes is one of the ma...
Fast Distributed RSA Key Generation for Semi-Honest and Malicious Adversaries
cryptographic protocols RSA
2018/6/7
We present two new, highly efficient, protocols for securely generating a distributed RSA key pair in the two-party setting. One protocol is semi-honestly secure and the other maliciously secure. Both...
A review of cryptographic properties of S-boxes with Generation and Analysis of crypto secure S-boxes
AES BFs
2018/5/11
In modern as well as ancient ciphers of public key cryptography, substitution boxes find a permanent seat. Generation and cryptanalysis of 4-bit as well as 8-bit crypto S-boxes is of utmost importance...