Results 71 to 80 of about 408,401 (216)

Breaking universal limitations on quantum conference key agreement without quantum memory

open access: yesCommunications Physics, 2023
Quantum conference key agreement is an important cryptographic primitive for future quantum network. Realizing this primitive requires high-brightness and robust multiphoton entanglement sources, which is challenging in experiment and unpractical in ...
Chen-Long Li   +7 more
doaj   +1 more source

An Improved Secure Blockchain‐Based Remote Patient Monitoring System With Role‐Based Access Control Using IPFS

open access: yesConcurrency and Computation: Practice and Experience, Volume 38, Issue 19, October 2026.
ABSTRACTThis work presents a privacy‐preserving remote healthcare system that integrates blockchain technology with a root seed‐based pseudonymization mechanism and lightweight cryptographic controls. Addressing the privacy risks of public ledgers and the limited computational resources of medical IoT devices, the proposed system focuses strictly on ...
Hoc Minh Le, Özgür Öksüz
wiley   +1 more source

Enabling trustworthy agentic AI through blockchain technology

open access: yesAI Magazine, Volume 47, Issue 3, Fall 2026.
Abstract Agentic AI systems are increasingly capable of autonomous decision‐making and collaboration across distributed environments. However, existing frameworks largely assume trust among agents, without providing mechanisms for verifiable identity, behavioral accountability, or interaction transparency. This work proposes a blockchain‐based backbone
Nicolò Romandini   +3 more
wiley   +1 more source

Universal one-way hash functions and their cryptographic applications

open access: yesSymposium on the Theory of Computing, 1989
We define a Universal One-Way Hash Function family, a new primitive which enables the compression of elements in the function domain. The main property of this primitive is that given an element x.
M. Naor, M. Yung
semanticscholar   +1 more source

Femtosecond‐Laser‐Induced Physical Unclonable Random Maze Structure for Storage‐Free Encryption

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
Femtosecond‐laser‐induced gold random maze structures serve as multimodal physical unclonable functions for storage‐free encryption. Their stochastic optical, electrical, and Raman responses are generated by plasmon‐assisted Marangoni formation and converted into AES‐compatible keys without permanent secret‐key storage, offering a portable route toward
Shiru Jiang   +6 more
wiley   +1 more source

Memristive crypto primitive for building highly secure physical unclonable functions

open access: yesScientific Reports, 2015
Physical unclonable functions (PUFs) exploit the intrinsic complexity and irreproducibility of physical systems to generate secret information. The advantage is that PUFs have the potential to provide fundamentally higher security than traditional ...
Yan-Song Gao   +4 more
semanticscholar   +1 more source

RRAM Variability Harvesting for CIM‐Integrated TRNG

open access: yesAdvanced Electronic Materials, Volume 12, Issue 17, 7 September 2026.
This work demonstrates a compute‐in‐memory‐compatible true random number generator that harvests intrinsic cycle‐to‐cycle variability from a 1T1R RRAM array. Parallel entropy extraction enables high‐throughput bit generation without dedicated circuits. This approach achieves NIST‐compliant randomness and low per‐bit energy, offering a scalable hardware
Ankit Bende   +4 more
wiley   +1 more source

One-time memory from isolated Majorana islands

open access: yesNew Journal of Physics, 2022
A one-time memory (OTM) stores two bits such that either bit can be retrieved, but not both. One-time memories have been shown to allow for secure classical and quantum computations.
Sourav Kundu, Ben Reichardt
doaj   +1 more source

A fuzzy commitment scheme

open access: yesConference on Computer and Communications Security, 1999
We combine well-known techniques from the areas of error-correcting codes and cryptography to achieve a new type of cryptographic primitive that we refer to as a fuzzy commitment scheme.
A. Juels, M. Wattenberg
semanticscholar   +1 more source

Compositional Security for Blockchain‐Based Agentic Commerce: Cross‐Layer Binding, Predicate‐Constrained Settlement, and Evidence‐Linked Verification in AI‐Agent Payments

open access: yesEngineering Reports, Volume 8, Issue 9, September 2026.
This paper presents CLB‐ACEL, a cross‐layer binding and evidence verification framework for agentic blockchain payments. Across ten human‐present attacks and five delegated predicate scenarios, CLB‐ACEL detects every modeled unsafe case and prevents replay plus all predicate violations at or before settlement. ABSTRACT Autonomous AI agents increasingly
Md. Al Amin   +3 more
wiley   +1 more source

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