Results 61 to 70 of about 158,618 (286)

Proxy Signature with Revocation

, 2016
Proxy signature is a useful cryptographic primitive that allows signing right delegation. In a proxy signature scheme, an original signer can delegate his/her signing right to a proxy signer or a group of proxy signers who can then sign documents on behalf of the original signer.
Xu, Shengmin, Yang, Guomin, Mu, Yi, Ma, Sha   +3 more
openaire   +3 more sources

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

Advanced Functional Materials, EarlyView.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch, Ankita Shastri, Thomas B. H. Schroeder, Amos Meeks, Shucong Li, Anna V. Shneidman, Michael Aizenberg, Joanna Aizenberg   +7 more
wiley   +1 more source

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

Advanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao, Patrick Duchstein, Benedikt Demmert, Thi Q. Nhi Dao, Krishnaveni Anjala, Evelyn Gruber, Franziska Gröhn, Dirk Zahn, Dorrit E. Jacob, Stephan E. Wolf   +9 more
wiley   +1 more source

Strongly Unforgeable and Efficient Proxy Signature Scheme with Fast Revocation Secure in the Standard Model

International Journal of Distributed Sensor Networks, 2016
The existing proxy signature schemes with the proxy revocation function are proven to be malleable and do not possess strong unforgeability. Motivated by these concerns, a new proxy signature scheme with fast revocation is proposed, and it can be proved ...
Liaojun Pang, Huiyang Zhao, Xia Zhou, Huixian Li   +3 more
doaj   +1 more source

E-government Data Security Exchange Scheme Based on Proxy Re-signature [PDF]

Jisuanji gongcheng, 2017
Considering the security problem of e-government data exchange,a double trapdoor Hash function is proposed by using discrete logarithm assumption.Moreover,this function is proved to satisfy the properties,such as validity,trapdoor collision,collision ...
YANG Xiaodong,GAO Guojuan,ZHOU Qixu,LI Yanan,WANG Caifen
doaj   +1 more source

One Attribute-Based Proxy Signature [PDF]

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015
For Identity-based proxy signature, when the original signer cannot sign for some reason,he delegate his signing capabilities to a person with an identity, in order to expand the scope of the proxy signer, an entity with a series of attribute properties can perform the right of signature.
Haiping Si, Yufeng Guo, Yu Yan, Changxia Sun   +3 more
openaire   +1 more source

Isolation Defines Identity: Functional Consequences of Extracellular Vesicle Purification Strategies

Advanced Healthcare Materials, EarlyView.
Four extracellular vesicle purification strategies are compared using ovarian‐cancer ascites and ES‐2 cell supernatants. A novel workflow links purification to function by combining particle‐normalized proteomics with matched cell‐free and cell‐based assays.
Christian Preußer, Dolores J. Salander, Witold Szymanski, Johannes Graumann, Yukai Wang, Kai Zhao, Jörg W. Bartsch, María Gómez‐Serrano, Daniel Bachurski, Silke Reinartz, Elke von Pogge von Strandmann   +10 more
wiley   +1 more source

Proxy Signature-Based Management Model of Sharing Energy Storage in Blockchain Environment

Applied Sciences, 2020
Sharing energy storage (SES) is a novel business model in order to increase the profits and improve the utilization rate of idle energy storage facilities.
Yiting Wang, Weiqiang Qiu, Ling Dong, Wei Zhou, You Pei, Li Yang, Heng Nian, Zhenzhi Lin   +7 more
doaj   +1 more source

Grand Minima Under the Light of a Low Order Dynamo Model

, 2009
In this work we use a low order dynamo model and study under which conditions can it reproduce solar grand minima. We begin by building the phase space of a proxy for the toroidal component of the solar magnetic field and we develop a model, derived from
Aantoulas, Beer, Brandenburg, Charbonneau, Charbonneau, Charbonneau, Choudhuri, Dário Passos, Ilídio Lopes, Lopes, Mininni, Miyahara, Moss, Ostriakov, Passos, Polygiannakis, Pontieri, Remepel, Ruzmaikin, Serre, Usoskin, Wilmot-Smith, Wilmot-Smith   +22 more
core   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source