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Cloud storage ciphertext access control scheme * Lu Zhiquan +, Zhang, Feng Deng National Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100190 Journal of Frontiers of Com Puter Science and Marvell To: An application field of attribute encryption (Ciphertext-policy attribute-based encryption, Cp-abe) based on ciphertext policy is proposed.

An adaptive replica consistency maintenance mechanism in cloud storage Wang Ximei Yang Shoubao Sherry Guo Liangmin presents an adaptive replica consistency maintenance mechanism based on application and user requirements, including update consistency and merge consistency. The system adjusts the consistency mechanism according to the formal consistency demand, achieves the duplicate consistency, The dynamic balance between availability and system performance. Experimental results show that the proposed mechanism can significantly reduce the operating cost and improve the availability of replicas in the case of consistency requirement. Keywords: adaptive, copy, &NB ...

Packet-domain Monitoring system based on cloud storage Luo taller, liqing in order to solve the problem of the high efficiency, scalability and security of the large data application environment in the current Telecom packet Area Monitoring system, a new monitoring system based on cloud storage is proposed. The new system adopts Hadoop cloud storage technology, which integrates the private telecom cloud, solves the problem of the system processing and storing massive data in time, and optimizes the whole performance of the system. The test verifies that the new system is stable and reliable and suitable for large capacity monitoring of telecommunication. Keywords: monitoring system; Hadoop; Data mining based on ...

CACDP: A ciphertext access control method for cloud storage dynamic strategy Zhang Zhao Feng Boyu The secret of the data is a difficult problem in the cloud storage environment, the access control technology based on ciphertext is an important idea to solve this problem, in the current access control technology based on ciphertext, The high security demand of data and the frequent policy update make the authority update cost of data owner and do is too high, which seriously restricts the overall efficiency of the system. In this paper, a new cipher access control method for cloud storage dynamic Strategy (...) is proposed.

A study on the design of the cloud storage technology of the geographical national conditions large-volume data Zhu Liwi Wang Wang June studied the characteristics and data content of the massive data in the geographical conditions, and studied the concept of cloud storage and the key technologies related to the existing problems in data storage. Using HDFs technology, the cloud storage model of large data organization and resource sharing under the cloud environment is proposed, and the cloud storage service is accessed through Cloud Application service interface, which can effectively solve the problem of massive storage and service of geographic national data resources and provide reference for the transformation of the data management mode of the geographical situation. Research on the design of large data cloud storage technology in geographical situation

Public cloud storage Service data security and Privacy Protection Technology Overview Li Sun Wenhai Li Fenghua Wang Boyang with the increasing popularity of cloud computing technology, public cloud storage services have been widely used, DropBox, Google Drive, Jinshan fast-disk and other public cloud storage applications, the rapid growth of users. However, there is also growing concern about the privacy, integrity, and controllable sharing of data that they keep in the cloud. In order to solve this problem, in recent years, the academic circles have fine-grained access control of data in public cloud storage service, ciphertext search, data integrity audit and cloud storage data ...

Huawei distributed storage technology and application practice jian--technology trend--the principle and advantage of Huawei distributed storage technology--Huawei distributed storage technology and application practice

Traffic flow data real-time storage system based on HBase Lu Ting Fang Jun Choyank traffic flow data is characterized by multiple sources, high speed and large volume, and traditional data storage methods and systems expose the problems of weak scalability and low real-time storage. In response to the above problems, A real-time storage system based on HBase traffic flow data is designed and implemented. This system uses the distributed storage architecture, through the front-end preprocessing operation to standardize the data, use the multi-source buffer structure to classify the different types of stream data, and combine the consistent hashing algorithm, multithreading technology, and key line optimization design ...

A security cloud storage model based on HDFs Lin Hu Huang Jiang Wensu Qin National for the HDFs based on the cloud storage platform for the absolute full control of metadata, proposed metadata autonomous organization model ASOM, through the analysis of Datanode and namenode interaction between the process, Asom designs and implements metadata sub service, interacts with metadata sub server directly by extracting Datanode metadata information in HDFs, and processes the mapping relationship between file and block, block and Datanode by metadata sub server. By HDFs ...

Key-value Storage systems based on Linux kernel--kstore Shephandong key-value storage systems are widely used in a variety of internet services, but existing key-value storage systems are typically designed and implemented in user-state space, Because of frequent mode switching and context switching, the efficiency of the access interface and transaction processing is not high, especially in the high concurrency and low latency data storage requirements. To solve this problem, a kernel state Key-value storage System is presented--kstore: Provide kernel space ...

Cloud computing storage optimization based on stacked file system Guo Wan Zhangxiaofung The redundancy caused by a large number of virtual mirrors in the cloud environment will result in lower resource utilization and the use of deduplication to ease the need for storage space and network bandwidth, but there are also problems in handling performance degradation. In this paper, a cloud storage optimization scheme based on stacked file system is proposed. The scheme utilizes a scalable file system to store a small amount of modification information of a user to a virtual instance on a read-write disk, storing the virtual image in a reading disk, saving only a small amount of modification information for the virtual instance at a time, without saving ...

Research on cloud storage system based on object storage Cao Shouxin Chaoleu Jin Yu when storing data on a physical device, the front-end database first needs to persist the data. In the past few years, relational databases have been the only choice for data persistence, and data workers are considering only filtering in these traditional databases, such as SQL Server, Oracle, or MySQL. Even make some default choices, such as using. NET to generally choose SQL Server;

A low-cost cloud storage scheme based on hybrid strategy Li Songtao Jin Xin to ensure high availability of cloud storage system data, reduce data storage cost and bandwidth cost, and shorten access time of data objects, a new scheme called Cache size Adaptive Determination (carom) is proposed. Carom combines the traditional method based on caching strategy and error correcting code to improve the elasticity and efficiency of cloud file system. In addition, in order to achieve the balance between the cache size and its benefit, an adaptive method based on the general cost convex function is proposed to realize the adaptive selection of cache size. On the basis of real world documents ...

Cloud computing storage backup and recovery strategy based on Erasure code LU Hin Liu how to guarantee the reliability of data in cloud storage system is a hot issue in cloud computing field. Replica backup technology is an important means to guarantee data reliability, but it has the problems of large storage space and low storage efficiency. The erasure code can provide optimized data redundancy to prevent data loss, proper use of erasure codes can improve the efficiency of space utilization and obtain better data protection effect, has been widely used in communication. In this paper, the erasure code is introduced into the cloud storage system instead of the copy backup strategy to improve the cloud storage system ...

A small-file-based memory cloud storage optimization Strategy Yu Yu Lu Liang Liu Mine The memory cloud Ramcloud uses log segments to store the data, so when a large number of small files are stored in the Ramcloud cluster, each small file exclusively takes over the entire segment, resulting in more fragment fragments, This results in low memory efficiency and a large amount of memory space wasted. To solve this problem, a ramcloud small file storage optimization strategy based on file classification is proposed. This strategy first divides the small file into the structure related document according to the document correlation characteristic, logos ...

dynamic management and energy-saving strategy of cloud storage replicas based on user access characteristics Wang Jinying Yu Yu Yingchang Sweet Lu Liang Bann in view of the problem of the serious waste of server utilization in cloud computing environment, this paper presents a dynamic management and energy saving strategy of cloud storage replicas based on user access feature. By transforming the user access characteristics into computing block's access heat, the Datanode actively applies for hibernation to achieve energy saving according to the overall access heat of the node. dynamic management and energy saving strategy of cloud storage replicas based on user access characteristics

Two-stage dynamic optimal scheduling mechanism based on cloud storage Ninchown Yang Dongju in the research of distributed storage, how to utilize storage space efficiently is a hot issue. Storage cluster, the storage capacity of each data node can not be exactly the same, because the main node to select the Random data node, the selected data node disk may be close to full, at this time the main node will automatically do the storage load balance, occupy the data transmission bandwidth, not only affect the performance of data transmission, but also This paper proposes a two-stage dynamic optimization scheduling mechanism based on cloud storage: The first stage is to compute the copy storage ...

The data processing Guo of downhole personnel based on cloud storage Li Jing trillion in view of the actual situation of the major coal mines in China, this paper studies the personnel positioning system in the underground, and uses the cloud storage instead of the original storage mode in order to improve the insecurity and incomplete of the massive data produced by the positioning. The use of cloud storage body to customize this feature, in the enterprise to build a private cloud, with Hadoop as the technical framework, the use of HBase Rowkey to determine the primary key of the search, HDFs Namenode and Datanode to complete the interaction between the data, fast, efficient ...

Research on data storage technology based on cloud computing Sun Zhixin Huanghan The research object of large data storage technology in cloud computing environment, first introduced two typical distributed storage systems in cloud computing environment, that is, the HDFs of Google GFs and Hadoop, and analyzed the data storage technology specially, The existing technologies are evaluated from scalability and latency (how to support storage of large volumes of small files), fault tolerance (data recovery when data is lost), and the real-time nature of massive data storage (3). On this basis, a distributed file system is proposed.

Research on the library mass data storage based on cloud computing Grong Fang Zhanglian data storage technology based on cloud computing changed the management mode of modern library, and also updated the traditional way of information service. The construction of modern digital library system will be set up along the development direction of network Information service industry, which has a great impact on the previous data storage mode. This paper studies the massive data storage technology in the cloud computing environment, analyzes the main features of modern digital library, and analyzes the application of cloud computing technology in library data management, and puts forward corresponding ...