Results 201 to 210 of about 5,167 (227)

From Rerandomizability to Sequential Aggregation: Efficient Signature Schemes Based on SXDH Assumption [PDF]

open access: yesLecture Notes in Computer Science, 2020
An aggregate signature allows one to generate a short aggregate of signatures from different signers on different messages. A sequential aggregate signature (SeqAS) scheme allows the signers to aggregate their individual signatures in a sequential manner.
Sanjit Chatterjee, Chatterjee Sanjit
exaly   +4 more sources

New Identity-Based Sequential Aggregate Signature Scheme from RSA

open access: yes2013 International Symposium on Biometrics and Security Technologies, 2013
An identity-based sequential aggregate signature (IBSAS) scheme provides a shorter aggregate signature for multiple signers in which each signer has signed his/her own message and all generated signatures are aggregated in sequence. During aggregate signature verification process, a verifier can identify the generated order and the validity of ...
Jia-Lun Tsai   +2 more
exaly   +3 more sources

Certificate-based sequential aggregate signature

open access: yesProceedings of the second ACM conference on Wireless network security, 2009
In this paper, we propose a new notion called Certificate-Based Sequential Aggregate Signature. Certificate-based cryptography proposed by Gentry [8] combines the merit of traditional public key cryptography and identity based cryptography, without use of the costly certificate chain verification process and the removal of key escrow security concern ...
Joseph K. Liu   +2 more
openaire   +2 more sources

Certificateless Sequential Aggregate Signature Scheme on NTRU Lattice

Chinese Journal of Electronics, 2019
Having the advantages of certificateless signature and the aggregate signature at the same time, certificateless aggregate signature has been widely applied in e-business, e-government and software security since it was proposed in 2007. Although a number of certificateless aggregate signature schemes have been proposed, all of them are based on the ...
Yupu Hu, Juntao Gao, Mingming Jiang
exaly   +2 more sources

Alternative Formalization and Implementation of Sequential Aggregate Signatures

2009 Second International Workshop on Computer Science and Engineering, 2009
This paper studies the construction of sequential aggregate signatures from any existentially unforgeable digital signature scheme and investigates whether the security of a sequential aggregate signature in this signature-based framework can be reduced to that of the underlying signatures.
Huafei Zhu
exaly   +2 more sources

Efficient attribute based sequential aggregate signature for wireless sensor networks

International Journal of Sensor Networks, 2014
Wireless sensor networks (WSNs) are broadly applied in real scenarios, such as remote environmental monitoring and target tracking. However, data can be easily compromised by the adversary. Although attribute based signature (ABS) scheme is an important cryptographic primitive which provides a powerful way for users to control their privacy.
Ximeng Liu, Jianfeng Ma, Jinbo Xiong
exaly   +2 more sources

Universal forgery of the identity-based sequential aggregate signature scheme

open access: yesProceedings of the 4th International Symposium on Information, Computer, and Communications Security, 2009
At CCS'07, a novel identity-based sequential aggregate signature scheme was proposed and the security of the scheme was proven under the hardness assumption of a new computational problem called modified LRSW problem. In the paper, unfortunately, we show that the scheme is universally forgeable, i.e., anyone can generate forged signatures on any ...
Jung Yeon Hwang   +2 more
openaire   +2 more sources

A Unified Framework for Trapdoor-Permutation-Based Sequential Aggregate Signatures [PDF]

open access: yes, 2018
We give a framework for trapdoor-permutation-based sequential aggregate signatures (SAS) that unifies and simplifies prior work and leads to new results. The framework is based on ideal ciphers over large domains, which have recently been shown to be realizable in the random oracle model.
Craig Gentry   +2 more
openaire   +3 more sources

A unified framework of identity-based sequential aggregate signatures from 2-level HIBE schemes

Information Sciences, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhoujun Li
exaly   +3 more sources

Sequential Aggregate Signatures and Multisignatures in the Plain Public Key Model

Chinese Journal of Electronics, 2015
At Eurocrypt’06, Lu et al. presented the first Sequential aggregate signature (SAS) provably secure without random oracles. The drawback of their scheme is that users need long public keys and the security model makes the Knowledge of secure key (KOSK) assumption.
Junzuo Lai, Shengli Liu, Kefei Chen
exaly   +2 more sources

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