Results 1 to 10 of about 175 (113)
Smooth Hash Proof System Based on the Learning With Errors Problem With Multi-Bit Key Output [PDF]
IEEE Access, 2019 Since hash proof system (HPS) can be utilized to build versatilely cryptographic schemes, the study on realizing this cryptographic primitive has been a very active research area. With the increasing concerns on the huge progress in quantum computing, it
Momeng Liu +3 more
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Disjunctions for Hash Proof Systems: New Constructions and Applications [PDF]
Lecture Notes in Computer Science, 2015 Hash Proof Systems were first introduced by Cramer and Shoup (Eurocrypt’02) as a tool to construct efficient chosen-ciphertext-secure encryption schemes. Since then, they have found many other applications, including password authenticated key exchange, oblivious transfer, and zero-knowledge arguments.
Michel Abdalla +2 more
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Key Encapsulation Mechanisms from Extractable Hash Proof Systems, Revisited [PDF]
Lecture Notes in Computer Science, 2013 In CRYPTO 2010, Wee proposed the notion of ‘‘extractable hash proof systems” (XHPS), and its richer version, ‘‘all-but-one XHPS” (ABO-XHPS), and showed that chosen ciphertext secure (CCA secure) key encapsulation mechanisms (KEM) can be constructed from them.
Takahiro Matsuda 0002, Goichiro Hanaoka
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Leakage-Resilient Chosen-Ciphertext Secure Public-Key Encryption from Hash Proof System and One-Time Lossy Filter [PDF]
Lecture Notes in Computer Science, 2013 We present a new generic construction of a public-key encryption (PKE) scheme secure against leakage-resilient chosen-ciphertext attacks (LR-CCA), from any Hash Proof System (HPS) and any one-time lossy filter (OT-LF). Efficient constructions of HPSs and OT-LFs from the DDH and DCR assumptions suggest that our construction is a practical approach to LR-
Baodong Qin, Shengli Liu 0001
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Leakage‐resilient message authentication code scheme based on hidden identity weak hash proof system [PDF]
IET Information Security, 2016 Hazay et al . initiated the formal study of leakage‐resilient message authentication code (MAC) and presented a MAC scheme that is both leakage resilient and unforgeable against chosen message and no verification query attack (uf‐cm‐nvq). As the communication overhead of their construction is
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Online Payment Using Blockchain [PDF]
ITM Web of Conferences, 2020 Increasing list of records is with blockchain where each record is linked with the help of cryptography. Every block in the chain contains timestamp, transaction details and hash of a previous block, hash is cryptographic hash.
Thanapal Karthikeya +3 more
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Blockchain and cloud computing-based secure electronic healthcare records storage and sharing
Frontiers in Public Health, 2022 Healthcare information is essential for both service providers and patients. Further secure sharing and maintenance of Electronic Healthcare Records (EHR) are imperative.
Amna Amanat +6 more
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Blockchain-powered distributed data auditing scheme for cloud-edge healthcare system
Cyber Security and Applications, 2023 Cloud-edge healthcare system provides storage and computing functions at the hospital servers, bringing low latency for doctors and patients. However, hospital servers cannot be trusted and have limited computing resources.
Yi Li, Meiqin Tang
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CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract This research focuses on addressing the privacy issues in healthcare advancement monitoring with the rapid establishment of the decentralised communication system in the Internet of Medical Things (IoMT). An integrated blockchain homomorphic encryption standard with an in‐build supervised learning‐based smart contract is designed to improvise ...
Chandramohan Dhasarathan +7 more
wiley +1 more source
Hybrid Consensus Algorithm Based on Modified Proof-of-Probability and DPoS
Future Internet, 2020 As the core of blockchain technology, the consensus algorithm plays an important role in determining the security, data consistency, and efficiency of blockchain systems. The existing mainstream consensus algorithm is experiencing difficulties satisfying
Baocheng Wang, Zetao Li, Haibin Li
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