Multi-authority based CP-ABE proxy re-encryption scheme for cloud computing by Shang LIU, Yinzhang GUO

“…Proxy re-encryption allows a proxy to convert a ciphertext related to a certain access policy into another one with a different access policy without uncovering the underlying plaintext, which makes the proxy re-encryption technology to be an important technology for data sharing between users.However, the proxy re-encryption schemes are mostly based on single authority, which have some problems such as single power and performance bottleneck of the authority organization and high computing burden on user’s client.At the same time, most schemes do not have the five basic characteristics of proxy re-encryption: one-way encryption, non-interaction, repeatability, controllability and verifiability.In order to solve these problems, a CP-ABE proxy re-encryption scheme for cloud computing based on multi-authority with repeatability and controllability was proposed.Based on the ciphertext policy attribute encryption scheme, proxy servers of encryption and decryption were introduced to reduce the computing burden on the user’s client, and multi-attribute authorization were set to disperse the authority of the central authority.The proxy re-encryption was improved from multiple aspects.Random factors and ciphertext sub-item set in the re-encryption key can realize one-way encryption and controllability.The re-encryption key was independently generated by the client without the participation of servers, which can support users to share data when the data owner is not online.Encrypting the ciphertext sub-item set in the initial ciphertext many times can achieve repeatability.The verification sub-item set in the initial ciphertext allowed the user to verify whether the outsourcing and re-encryption results were correct.Compared with other schemes, the user’s client computing overhead of the proposed scheme was small, and the user can decrypt the original ciphertext only by performing constant times of exponential operation.Based on q-parallel BDHE assumption, the security analysis showed that the proposed scheme is secure against chosen-ciphertext attack (CCA) under the standard model.…”
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Co-Cultivations of <i>Beauveria bassiana</i>, <i>Metarhizium anisopliae</i>, and <i>Trichoderma harzianum</i> to Produce Bioactive Compounds for Application in Agriculture by Pauline Flores da Silva, Maicon Sérgio Nascimento dos Santos, Beatriz de Andrade Araújo, Bruno Douglas Kerber, Heloisa Alves Pinto de Oliveira, Jerson Vanderlei Carús Guedes, Marcio Antonio Mazutti, Marcus Vinícius Tres, Giovani Leone Zabot

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Openings: the Act of Modelizing and the Question of Complexity by Emilie Janton

“…The way I have chosen to address this issue is to look into the openings of the novels as privileged locations where formal guidelines are provided. …”
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[In]toxic[ating] Bodies: Spirits and Spectral Biopolitics in The House of the Seven Gables by Emelia Abbé Robertson

“…Using The House of the Seven Gables as a case study, I argue that Hawthorne’s link between intoxication and toxic materials is less a means of critiquing the political and institutional systems at work in his moment, than a way to interrogate a particular narrative of American history. …”
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Peut-on traverser les Tumuc Humac ? Réflexions autour de la configuration historique et géographique de l’extrême sud de la Guyane by François-Michel Le Tourneau

“…For it is possible to cross the Tumuc Humac, finding the right way being the real difficulty.…”
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The Digitalisation of Swedish Housing by Fredrik Torisson

“…This is usually put down to hype and hyperbole, but it may well be argued that smart built environments do indeed exist across temporal dimensions – only not in the way we imagine them to. …”
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Les Novelettes astrales (1912) ou l’utopie subversive de Paul Scheerbart by Yves Iehl

“…They rather conjure up pleasant scenes of a utopian peaceful way of life based on art and aesthetic contemplation. …”
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Taking care of women entrepreneurs in deprived areas ? Supporting business in Politique de la ville by Lorena Clément

“…While their care practices have an impact at individual level, they do not transform unequal gender relations.…”
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The Personal Values of Small-Business Entrepreneurs: Evidence from Brazil by Daniel Lima, Edson Kubo, Eduardo Oliva

“…It rethinks professionalism, no longer as a dependent variable, but as a personal value, like the rest, in independent, innovative and sovereign way.…”
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Presentation of Novel Multiple Regression Model for Accounting Information Quality, Corporate Investment, and Moderating Role of Ownership Structure in Companies by Mahsa Amiran, Abdorreza Asadi, Maryam Oladi

“…Increasing the information quality is one way to prevent that issue, allowing stakeholders to monitor investment decisions. …”
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A Model of Influential Factors in Franchise Operations by Helder de Souza Aguiar, Marcos Roberto Luppe, Paulo Tromboni de Souza Nascimento

“…The objective of this theoretical essay was to construct a model of those factors that might at any time have an influence on the operation of a franchise unit. In order to do so, we studied and assessed articles and books between 2014 and 2019 that contain aspects related to franchise operations; they were compiled in a way that had not hitherto been addressed by seminal authors. …”
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‘You’re considered a warrior then’ by Marjo Väyrynen

“…Like many other indigenous peoples, the Crow today struggle to construct their lives on their own terms, and they do this by applying their traditional values, such as respect and individualism, to interpret reality and their own identity, hence perpetuating the essence of their distinctive way of life. …”
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How to Hire and Manage Residential Contractors by Randall A. Cantrell

“…If you are looking for a contractor for either home building or remodeling, ask difficult questions before you enter into a contract. This way you and the contractor have a clear understanding of the other’s expectations. …”
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La gestion professionnelle des émotions et l’approche prothétique : un nouveau travail prescrit pour soigner les déments by Michel Bigaouette

“…This approach redefines the caregiver’s prescribed work, in order to satisfy the basic needs of dementia patients in a more effective way.…”
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Quatro Décadas de Transformações: A vilegiatura marítima no litoral metropolitano de Fortaleza, Ceará – Brasil by Prof. Dr. Alexandre Queiroz Pereira

“…This theoretic-methodological undertaking in the form of an article aims to comprehend the production of modern maritime spatialities in the metropolitan coastal spaces of Fortaleza during the last four decades. In order to do so, the case of the metropolitan peri-urban space of Fortaleza has been analyzed with focus on the network of appropriate coastal places to perform summer vacation activities. …”
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Jeu vidéo et science-fiction >> de mode texte en code texte  by Estelle Dalleu

“…The text mode, present from the first video game experiences, and which continues in the most contemporary video games, paves the way to what works deeply in the relationship between the human and the computer machine : the artificial intelligence.…”
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Some considerations on Bible translation as complex process by J. G. van der Watt, Y. Kruger

“…This is because languages do not overlap in their use of words, structures, genres, and social conventions. …”
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Temporary city between emergency and recovery by Roberto Ruggiero

“…Although the resulting housing disadvantage is enormous, the current management policies in the field of post-disaster emergency do not seem to have dealt with this transitional phase in an organic way. …”
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Adapter les pratiques aux valeurs, adapter les valeurs aux pratiques : compensation et conciliation des habitants du périurbain pour une mobilité durable by Georges-Henry Laffont, Denis Martouzet

“…By the way, relationship with durability is sketched through five behavioral figures.…”
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Making Muslim Women Political : Imagining the Wartime Woman in the Russian Muslim Women’s Journal Suyumbika by Danielle Ross

“…In this way, the Great War served as a period of transition between women’s cultures of the imperial and Soviet periods. …”
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