搜索结果: 1-15 共查到“密码学 threshold”相关记录114条 . 查询时间(0.171 秒)
Sharing the LUOV: Threshold Post-Quantum Signatures
cryptographic protocols linear secret shared schemes
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2019/9/19
We examine all of the signature submissions to Round-2 of the NIST PQC ``competition'' in the context of whether one can transform them into threshold signature schemes in a relatively straight forwar...
Threshold Implementations in the Robust Probing Model
DPA Masking Security Proofs
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2019/9/6
Threshold Implementations (TI) are secure algorithmic countermeasures against side-channel attacks in the form of differential power analysis. The strength of TI lies in its minimal algorithmic requir...
Securing DNSSEC Keys via Threshold ECDSA From Generic MPC
Multiparty computation Threshold ECDSA Honest majority
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2019/8/6
A surge in DNS cache poisoning attacks in the recent years generated an incentive to push the deployment of DNSSEC forward. ICANN accredited registrars are required to support DNSSEC signing for their...
2-threshold Ideal Secret Sharing Schemes Can Be Uniquely Modeled by Latin Squares
secret sharing ideal secret sharing 2-threshold secret sharing
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2019/5/31
In a secret sharing scheme, a secret value is encrypted into several shares, which are distributed among corresponding participants. It requires that only predefined subsets of participants can recons...
Threshold ECDSA from ECDSA Assumptions: The Multiparty Case
threshold cryptography elliptic curve cryptography multi-party computation
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2019/5/21
Cryptocurrency applications have spurred a resurgence of interest in the computation of ECDSA signatures using threshold protocols---that is, protocols in which the signing key is secret-shared among ...
The Communication Complexity of Threshold Private Set Intersection
Communication Complexity Private Set Intersection
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2019/3/1
Threshold private set intersection enables Alice and Bob who hold sets AA and BB of size nn to compute the intersection A∩BA∩B if the sets do not differ by more than some threshold parameter tt. In th...
Versatile ABS: Usage Limited, Revocable, Threshold Traceable, Authority Hiding, Decentralized Attribute Based Signatures
attribute based signature anonymous credentials threshold cryptography
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2019/3/1
In this work, we revisit multi-authority attribute based signatures (MA-ABS), and elaborate on the limitations of the current MA-ABS schemes to provide a hard to achieve (yet very useful) combination ...
Fast Multiparty Threshold ECDSA with Fast Trustless Setup
ECDSA cryptographic protocols
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2019/2/27
A threshold signature scheme enables distributed signing among nn players such that any subgroup of size t+1t+1 can sign, whereas any group with tt or fewer players cannot. While there exist previous ...
Shuffle and Mix: On the Diffusion of Randomness in Threshold Implementations of Keccak
side-channel analysis threshold implementation uniformity
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2018/11/13
Threshold Implementations are well-known as a provably firstorder secure Boolean masking scheme even in the presence of glitches. A precondition for their security proof is a uniform input distributio...
PASTA: PASsword-based Threshold Authentication
passwords token-based authentication threshold cryptography
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2018/11/13
Token-based authentication is commonly used to enable a single-sign-on experience on the web, in mobile applications and on enterprise networks using a wide range of open standards and network authent...
Optimized Threshold Implementations: Securing Cryptographic Accelerators for Low-Energy and Low-Latency Applications
Threshold Implementations PRINCE SCA
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2018/11/8
Threshold implementations have emerged as one of the most popular masking countermeasures for hardware implementations of cryptographic primitives. In the original version of TI, the number of input s...
Turning HATE Into LOVE: Homomorphic Ad Hoc Threshold Encryption for Scalable MPC
MPC threshold encryption obfuscation
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2018/11/5
We explore large-scale fault-tolerant multiparty computation on a minimal communication graph. Our goal is to be able to privately aggregate data from thousands of users - for example, in order to obt...
Threshold Partially-Oblivious PRFs with Applications to Key Management
Oblivious PRF Key Management
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2018/8/10
An Oblivious PRF (OPRF) is a protocol between a server holding a key to a PRF and a user holding an input. At the end of the interaction, the user learns the output of the OPRF on its input and nothin...
Secure Two-party Threshold ECDSA from ECDSA Assumptions
threshold cryptography elliptic curve cryptography multi-party computation
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2018/5/28
The Elliptic Curve Digital Signature Algorithm (ECDSA) is one of the most widely used schemes in deployed cryptography. Through its applications in code and binary authentication, web security, and cr...
Distributed SSH Key Management with Proactive RSA Threshold Signatures
distributed cryptography implementation RSA secret sharing
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2018/5/2
SSH is a security network protocol that uses public key cryptography for client authentication. SSH connections are designed to be run between a client and a server and therefore in enterprise network...