Results 21 to 30 of about 913 (157)
On Large Tweaks in Tweakable Even-Mansour with Linear Tweak and Key Mixing
IACR Transactions on Symmetric Cryptology, 2023 In this paper, we provide the first analysis of the Iterated Tweakable Even-Mansour cipher with linear tweak and key (or tweakey) mixing, henceforth referred as TEML, for an arbitrary tweak(ey) size kn for all k ≥ 1, and arbitrary number of rounds r ≥ 2.
Benoît Cogliati +3 more
doaj +1 more source
Efficient and provable security amplifications [PDF]
, 1997 Even, Goldreich and Micali showed at Crypto''89 that the existence of signature schemes secure against known message attacks implies the existence of schemes secure against adaptively chosen message attacks. Unfortunately, this transformation leads to a rather impractical scheme. We exhibit a similar security amplification, which takes the given scheme
R.J.F. Cramer (Ronald) +2 more
openaire +3 more sources
Future Internet, 2018 Provable Data Possession (PDP) protocol makes it possible for cloud users to check whether the cloud servers possess their original data without downloading all the data.
Hongbin Yang +3 more
doaj +1 more source
Unidirectional Variable Threshold Proxy Re-signature Scheme with Provable Security [PDF]
Jisuanji gongcheng, 2016 In most existing threshold proxy re-signature schemes,threshold value is essentially immutable.However,depending on the significance of re-signature message,the value should be changed dynamically in many practical applications.Based on proxy re ...
XU Haifeng,HONG Xuan
doaj +1 more source
Provable data possession scheme with authentication
Tongxin xuebao, 2016 To satisfy the requirements of identity authentication and data possession proven in the cloud application scenarios,a provable data possession scheme with authentication was proposed.Based on data tag signature and randomness reusing,the proposed scheme
Hao-xing LI +3 more
doaj +2 more sources
Certificateless public key cryptography based provable data possession scheme in edge environment
Tongxin xuebao, 2022 In the edge environment, data transmission to the cloud needs to pass through a new entity, the edge node, which makes the data security problem more complicated, the confidentiality and integrity of data are difficult to be guaranteed, and the ...
Ziyuan WANG, Ruizhong DU
doaj +2 more sources
New provable data transfer from provable data possession and deletion for secure cloud storage
International Journal of Distributed Sensor Networks, 2019 With the continuous and rapid development of cloud computing, it becomes more popular for users to outsource large-scale data files to cloud servers for storage and computation.
Yudong Liu +3 more
doaj +1 more source
Practical and Provably Secure Distance-Bounding [PDF]
Journal of Computer Security, 2015 Abstract From contactless payments to remote car unlocking, many applications are vulnerable to relay attacks. Distance bounding protocols are the main practical countermeasure against these attacks. In this paper, we present a formal analysis of SKI, which recently emerged as the first family of lightweight and provably secure ...
Ioana Boureanu +2 more
openaire +4 more sources
International Journal of Distributed Sensor Networks, 2018 In vehicular ad hoc networks, establishing a secure channel between any two vehicles is fundamental. Authenticated key agreement is a useful mechanism, which can be used to negotiate a shared key for secure data transmission between authentic vehicles in
Lanjun Dang +6 more
doaj +1 more source
IDCrypt: A Multi-User Searchable Symmetric Encryption Scheme for Cloud Applications
IEEE Access, 2018 Searchable Encryption (SE) has been extensively examined by both academic and industry researchers. While many academic SE schemes show provable security, they usually expose some query information (e.g., search and access patterns) to achieve high ...
Guofeng Wang +5 more
doaj +1 more source