Results 1 to 10 of about 2,863 (194)
Blockchain Processing Technique Based on Multiple Hash Chains for Minimizing Integrity Errors of IoT Data in Cloud Environments [PDF]
Sensors, 2021 As IoT (Internet of Things) devices are diversified in the fields of use (manufacturing, health, medical, energy, home, automobile, transportation, etc.), it is becoming important to analyze and process data sent and received from IoT devices connected ...
Yoon-Su Jeong
doaj +4 more sources
Permutation-Based Hash Chains with Application to Password Hashing [PDF]
IACR Transactions on Symmetric CryptologyHash chain based password systems are a useful way to guarantee authentication with one-time passwords. The core idea dates back to Lamport, and is specified in RFC 1760 as S/Key. At CCS 2017, Kogan et al.
Charlotte Lefevre, Bart Mennink
doaj +4 more sources
Fast Verification of Hash Chains [PDF]
Lecture Notes in Computer Science, 2004 A hash chain is a sequence of hash values x i = hash(x i − 1) for some initial secret value x 0. It allows to reveal the final value x n and to gradually disclose the pre-images x n − 1, x n − 2, ... whenever necessary. The correctness of a given value x i can then be verified by re-computing the chain and comparing the result to x n .
Fischlin Marc
exaly +2 more sources
Reversible and Plausibly Deniable Covert Channels in One-Time Passwords Based on Hash Chains
Applied Sciences, 2021 Covert channels enable stealthy communications over innocent appearing carriers. They are increasingly applied in the network context. However, little work is available that exploits cryptographic primitives in the networking context to establish such ...
Jörg Keller, Steffen Wendzel
doaj +3 more sources
On Fast Verification of Hash Chains
Lecture Notes in Computer Science, 2010 A hash chain H for a hash function hash(·) is a sequence of hash values 〈xn, xn−1,..., x0 〉, where x0 is a secret value, xi is generated by xi=hash(xi−1) for 1≤i≤n, and xn is a public value. Hash values of H are disclosed gradually from xn−1 to x0. The correctness of a disclosed hash value xi can be verified by checking the equation $x_n \stackrel{?}{=}
Dae Hyun Yum, Yum Dae Hyun, Hong Sung Je
exaly +3 more sources
Digital signatures over HMAC entangled chains
Engineering Science and Technology, an International Journal, 2022 In this work we present a new digital signature method based on hash chains and the hash message authentication code (HMAC). Unlike Blockchain technology, our approach establishes that the database of transactions is distributed among users, so each one ...
Luis Adrián Lizama-Pérez
doaj +1 more source
Dynamic Cryptography Integrated Secured Decentralized Applications with Blockchain Programming
Wasit Journal of Computer and Mathematics Science, 2022 Blocks and chains are the building blocks of the blockchain, which is a community network. Blocks and chains are two terms used to describe collections of data information.
Jamal Kh-Madhloom
doaj +1 more source
PLoS ONE, 2022 As an important part of the second defense line of the power system, the Security and Stability Control System (SSCS) is of great significance to ensure the reliable operation of the power system. However, SSCS still lacks an effective security mechanism
Zhaohan Li +5 more
doaj +1 more source
CoRR, 2014 This paper describes a particular hash-based records linking chain scheme. This scheme is simple conceptually and easy to implement in software. It allows for a simple and secure way to transfer ownership of digital objects between peers.
Oleg Mazonka, Vlad Popov
openaire +2 more sources
A blockchain architecture with master-slave blockchain
物联网学报, 2021 With the continuous development of blockchain technology, different chains are derived due to different adaptation scenarios.Each chain has its own characteristics, such as public chains like bitcoin and ethereum, a large number of private chains and ...
Pengliu TAN, Lixuran WAN
doaj +2 more sources