Results 21 to 30 of about 314,403 (259)

Lazy-mode Ciphertext-update Based Approach for CP-ABE Attribute Change [PDF]

Jisuanji kexue, 2022
Ciphertext-policy attribute-based encryption(CP-ABE) can be used to realize secure data sharing in cloud computing environments.However,user attribute change(attribute revocation and addition) in CP-ABE is a tricky problem.Generally,attribute change is ...
LEI Xue-jiao, WANG Yin-long, Nurmamat HELIL
doaj   +1 more source

Hierarchical Attribute-Based Signatures

, 2018
Attribute-based Signatures (ABS) are a powerful tool allowing users with attributes issued by authorities to sign messages while also proving that their attributes satisfy some policy. ABS schemes provide a flexible and privacy-preserving approach to authentication since the signer’s identity and attributes remain hidden within the anonymity set of ...
Constantin Catalin Dragan, Daniel Gardham, Mark Manulis   +2 more
openaire   +4 more sources

Attribute-Based Designated Combiner Transitive Signature Scheme

Mathematics
Transitive signatures allow any entity to obtain a valid signature of (i,k) by combining signatures of (i,j) and (j,k). However, the traditional transitive signature scheme does not offer fine-grained control over the combiner.
Shaonan Hou, Shaojun Yang, Chengjun Lin
doaj   +1 more source

Multi-functional Attribute Based Encryption from Lattices [PDF]

Jisuanji kexue
Attribute based encryption from lattices has the property of resisting quantum attacks,and achieves fine-grained access control of attributes by cleverly embedding access control policies into ciphertext or keys.However,due to the inherent weaknesses of ...
GUO Lifeng, YANG Jieying, MA Tianjun, ZHANG Xialei
doaj   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier, Brittany Grantham, Camilla Grud Nielsen, Louise Lundgren, Liv Andrés‐Jensen, Kjeld Schmiegelow, Chris Selman, Gareth Ball, Elyse Passmore, David A. Elliott, Rachel Conyers   +10 more
wiley   +1 more source

Improving Privacy and Security in Decentralizing Multi-Authority Attribute-Based Encryption in Cloud Computing

IEEE Access, 2018
Decentralizing multi-authority attribute-based encryption (ABE) has been adopted for solving problems arising from sharing confidential corporate data in cloud computing.
Yan Yang, Xingyuan Chen, Hao Chen, Xuehui Du   +3 more
doaj   +1 more source

Decentralized Attribute-Based Signatures [PDF]

, 2013
We present the first decentralized multi-authority attribute-based signature (DMA-ABS) scheme, in which no central authority and no trusted setup are required. The proposed DMA-ABS scheme for a large class of (non-monotone) predicates is fully secure (adaptive-predicate unforgeable and perfectly private) under a standard assumption, the decisional ...
Tatsuaki Okamoto, Katsuyuki Takashima
openaire   +2 more sources

Health Literacy, Self‐Efficacy and Knowledge of Sickle Cell Disease Among Caregivers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a hereditary blood disorder in which abnormal haemoglobin leads to severe anaemia, painful crises and organ failure. Caregivers’ health literacy (HL) – their ability to assess, understand and apply information, and interact with healthcare professionals – is crucial for managing children with SCD, yet ...
Melanie Bruinooge, Maite E. Houwing, Rowena L. Grohssteiner, Ferdows Atiq, Sonja A. M. C. Teuben, Mirjam P. Fransen, Marjon H. Cnossen   +6 more
wiley   +1 more source

An Efficient Social Attribute Inference Scheme Based on Social Links and Attribute Relevance

IEEE Access, 2019
Social network is a critical component in mobile multimedia systems, where users share their videos, photos, and other media. However, the information (e.g., posts, user profiles, etc.) shared on the social network platforms usually reflects many users ...
Jian Mao, Wenqian Tian, Yitong Yang, Jianwei Liu   +3 more
doaj   +1 more source

Psychosocial Functioning After Pediatric Bone Sarcoma: Generic and Survivor‐Specific Outcomes in Adolescent and Young Adult Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric bone sarcoma patients and survivors may experience psychosocial challenges related to childhood cancer after their intensive, body‐altering treatment. This cross‐sectional study aimed to evaluate generic and survivor‐specific psychosocial outcomes in a national cohort of pediatric bone sarcoma patients and survivors, and ...
Hinke van der Hoek, Heleen Maurice‐Stam, Laura R. Beek, Jennifer van Dijk, Marjolein E. M. Langemeijer, Relinde W. Slooff‐Lentink, Alied M. van der Aa‐van Delden, Anne Westerweel, Marloes van Gorp, Hendrik W. B. Schreuder, Lianne M. Haveman, W. Peter Bekkering, Leonie G. Tigelaar, Johannes H. M. Merks, Martha A. Grootenhuis   +14 more
wiley   +1 more source