Results 11 to 20 of about 291 (124)
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
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Two-Party Adaptor Signature: New Definition and Efficient Constructions From ECDSA
IET Information SecurityAdaptor signature (AS) has gained increasing popularity lately due to its widespread adoption in different Blockchain applications such as atomic swaps and payment channels.
Binbin Tu, Xueli Wang, Yu Chen
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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
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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
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, 2003 We describe two variants of ECDSA one of which is secure, in the random oracle model, against existential forgery but suffers from the notion of duplicate signatures. The second variant is also secure against existential forgery but we argue that it is likely to possess only four natural duplicate signatures.
Malone-Lee, John, Smart, Nigel
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Threshold ECDSA with an Offline Recovery Party [PDF]
Mediterranean Journal of Mathematics, 2021 A $(t,n)-$ threshold signature scheme enables distributed signing among $n$ players such that any subgroup of size $t$ can sign, whereas any group with fewer players cannot. Our goal is to produce signatures that are compatible with an existing centralized signature scheme: the key generation and signature algorithm are replaced by a communication ...
Battagliola M. +3 more
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Applied Sciences, 2020 As the number of controllers and devices increases in Industrial Internet of Things (IIoT) applications, it is essential to provide a secure and usable user authentication system for human operators who have to manage tens or hundreds of controllers and ...
Jusop Choi +3 more
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A Multi-Party Functional Signatures Scheme for Private Blockchain
Cryptography, 2023 Digital signature technology is essential for ensuring the authenticity and unforgeability of transactions in a private blockchain framework. In some scenarios, transactions require verification from multiple parties, each of whom needs to authenticate ...
Quan Zhou +4 more
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PENGEMBANGAN ALGORITMA ECDSA DENGAN MODIFIKASI PERKALIAN SKALAR MENGGUNAKAN DOUBLE BASE CHAIN
Jurnal Teknologi Informasi dan Ilmu KomputerPenggunaan tanda tangan digital saat ini menjadi penting karena perubahan aktivitas manusia dari offline ke online. Hal ini membuat rentannya pemalsuan dokumen atau pengambilan dokumen secara ilegal yang disebabkan oleh kerentanan sistem keamanan dokumen.
Hafiz Abdul Fatah Kurniawan +2 more
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Blind ECDSA from the ECDSA Assumption
IACR Communications in CryptologyBlind signatures have become a cornerstone for privacy-sensitive applications such as digital cash, anonymous credentials, and electronic voting. The elliptic curve variant of the Digital Signature Algorithm (ECDSA) is widely adopted due to its efficiency in resource-constrained environments, such as mobile devices and blockchain systems.
Jules Maire, Alan Pulval-Dady
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