Results 1 to 10 of about 688 (173)
An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain
Information (Switzerland), 2020 Access control has become problematic in several organizations because of the difficulty in establishing security and preventing malicious users from mimicking roles.
Zhiguang Qin +2 more
exaly +3 more sources
Transactions on Cryptographic Hardware and Embedded Systems, 2020 We present our discovery of a group of side-channel vulnerabilities in implementations of the ECDSA signature algorithm in a widely used Atmel AT90SC FIPS 140-2 certified smartcard chip and five cryptographic libraries (libgcrypt, wolfSSL, MatrixSSL ...
Jan Jancar +3 more
doaj +6 more sources
Kleptographic Attacks on ECDSA
Безопасность информационных технологий, 2014 This paper presents secretly trapdoor with universal protection (SETUP) attacks on the elliptic curve digital signature algorithm ECDSA. It allows a malicious manufacturer of black-box cryptosystems to implement these attacks to get access to user’s ...
Nadezhda Anatolievna Chepick +1 more
doaj +2 more sources
Low-Cost Area-Efficient FPGA-Based Multi-Functional ECDSA/EdDSA
Cryptography, 2022 In cryptography, elliptic curve cryptography (ECC) is considered an efficient and secure method to implement digital signature algorithms (DSAs). ECC plays an essential role in many security applications, such as transport layer security (TLS), internet ...
Cong-Kha Pham +2 more
exaly +3 more sources
Secure ECDSA SRAM-PUF Based on Universal Single/Double Scalar Multiplication Architecture [PDF]
MicromachinesPhysically unclonable functions (PUFs) are crucial for enhancing cybersecurity by providing unique, intrinsic identifiers for electronic devices, thus ensuring their authenticity and preventing unauthorized cloning.
Jingqi Zhang +8 more
doaj +2 more sources
Optimization of 2-Party ECDSA Protocol
IEEE Access2-party ECDSA enables two parties to collaboratively generate signatures while keeping their signing key shares and the full signing key hidden throughout the process.
Jina Han +3 more
doaj +2 more sources
ECDSA White-Box Implementations: Attacks and Designs from CHES 2021 Challenge
Transactions on Cryptographic Hardware and Embedded Systems, 2022 Despite the growing demand for software implementations of ECDSA secure against attackers with full control of the execution environment, scientific literature on ECDSA white-box design is scarce. The CHES 2021 WhibOx contest was thus held to assess the
Guillaume Barbu +8 more
doaj +3 more sources
Attacks Against White-Box ECDSA and Discussion of Countermeasures
Transactions on Cryptographic Hardware and Embedded Systems, 2022 This paper deals with white-box implementations of the Elliptic Curve Digital Signature Algorithm (ECDSA): First, we consider attack paths to break such implementations.
Sven Bauer +5 more
doaj +3 more sources
Threshold ECDSA from ECDSA Assumptions: The Multiparty Case [PDF]
2019 IEEE Symposium on Security and Privacy (SP), 2019 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 n parties, of which any subset of size t must interact in order to compute a signature. Among the resulting works to date, that of Doerner et al. requires
Jack Doerner +3 more
openaire +2 more sources
REISCH: Incorporating Lightweight and Reliable Algorithms into Healthcare Applications of WSNs
Applied Sciences, 2020 Healthcare institutions require advanced technology to collect patients’ data accurately and continuously. The tradition technologies still suffer from two problems: performance and security efficiency.
Mishall Al-Zubaidie +2 more
doaj +1 more source