Results 41 to 50 of about 913 (157)

Practical Provably Secure Flooding for Blockchains

open access: yes, 2022
Advances in Cryptology – ASIACRYPT ...
Chen-Da Liu-Zhang   +4 more
openaire   +3 more sources

Provable security signcryption scheme based on RLWE without trapdoor

open access: yesTongxin xuebao, 2020
In view of the existing efficiency and security problems of lattice based signcryption,with the ABB16’s signature scheme ring-TESLA,a signcryption scheme without trapdoor named RLWE-SC was constructed,which achieved indistinguish ability against adaptive
Zhen LIU   +3 more
doaj   +2 more sources

Limits of Provable Security for Homomorphic Encryption [PDF]

open access: yes, 2013
We show that public-key bit encryption schemes which support weak (i.e., compact) homomorphic evaluation of any sufficiently “sensitive” collection of functions cannot be proved message indistinguishable beyond AM ∩ coAM via general (adaptive) reductions, and beyond statistical zero-knowledge via reductions of constant query complexity.
Andrej Bogdanov, Chin Ho Lee
openaire   +3 more sources

Provably Secure Authenticated Encryption

open access: yes, 2018
Authenticated Encryption (AE) is a symmetric key cryptographic primitive that ensures confidentiality and authenticity of processed messages at the same time. The research of AE as a primitive in its own right started in 2000. The security goals of AE were captured in formal definitions in the tradition in the tradition of provable security (such as ...
openaire   +2 more sources

A Secure and Efficient Handover Authentication Protocol for Wireless Networks

open access: yesSensors, 2014
Handover authentication protocol is a promising access control technology in the fields of WLANs and mobile wireless sensor networks. In this paper, we firstly review an effcient handover authentication protocol, named PairHand, and its existing security
Weijia Wang, Lei Hu
doaj   +1 more source

Improvement on the XTP public key cryptosystem and communication protocol of provable security

open access: yesTongxin xuebao, 2007
A new trace function was proposed,the XTP public key cryptosystem based on the 3-rd order LFSR se-quence(the so-called XTR3 system) was extended to the XTR4 system based on the 4-th order LFSR sequence.XTR4 key was shorter in length than that of the XTR3
WANG Ze-hui
doaj   +2 more sources

Provable Security Against a Differential Attack

open access: yesDAIMI Report Series, 1994
The purpose of this paper is to show that there exist DES-like iterated ciphers, which are provably resistant against differential attacks. The main result on the security of a DES-like cipher with independent round keys is Theorem 1, which gives an upper bound to the probability of <em>s</em>-round differentials, as defined in <em> ...
Kaisa Nyberg, Lars R. Knudsen
openaire   +2 more sources

Provable security EPC information service communication scheme for EPC network

open access: yesTongxin xuebao, 2013
To resolve the security drawbacks of EPC information services, a provable security EPC information service communication scheme—ESCM was designed. By using some cryptographic mechanisms such as the digital signature and the message authentication code ...
Jing-feng LI, Heng PAN, Wei-feng GUO
doaj   +2 more sources

Efficient and Provable Security Searchable Asymmetric Encryption in the Cloud

open access: yesIEEE Access, 2018
Cloud and remote storage, which has become the preferred method for reducing the security risk and safeguarding our data, is widely used for backups or outsourcing.
Jianyi Zhang   +4 more
doaj   +1 more source

Identity-based Key-insulated Provable Multi-copy Data Possession in Multi-cloud Storage [PDF]

open access: yesJisuanji kexue
Provable data possession(PDP) allows users to verify that their outsourced data is intact without downloading all the data.To improve the availability and security of outsourced data,many users store multiple copies of their data on a single server.In ...
ZHOU Jie, WANG Huaqun
doaj   +1 more source

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