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Secure storage of Data using Hybrid Cryptography 15

Secure Storage of Data using Hybrid Cryptography

引用

15th International conference on Advances in Computing, Control, and Telecommunication technologies, ACT 2024

作者： Samuel, Sneha Gupta, Archana K.J. Somaiya College of Engineering Computer Engineering Department Mumbai India

ISBN: (纸本)9798331300579

In today's interconnected world, technology has become an indispensable part of our daily lives. Despite modern advances, the escalating threat of Cyber Crimes underscores the vulnerabilities in the very devices we've come to depend on. this reality prompts us to explore the significance of Cyber Security - understanding what it entails, why it is paramount, and what knowledge is essential. Organizations have three critical tools at their disposal to ensure strong Cyber Security: Authentication, Encryption, and Authorization. Encryption stands out as a foundational layer providing a robust first layer protection for data and enhancing Cyber resilience. So the motivation of this project is to provide an insight into the process of Encryption-Decryption System employing a Hybrid Cryptosystem for the textual data and Symmetric Cryptography for the binary data of different file formats which introduces an extra yet essential layer of shield to the data. Additionally, it also guarantees Confidentiality and fosters trust among users regarding security of their data. © Grenze Scientific Society, 2024.

关键词： Cyber attacks

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FORD: Fast One-sided RDMA-based Distributed Transactions for Disaggregated Persistent Memory 20

FORD: Fast One-sided RDMA-based Distributed Transactions for...

引用

20th usenix conference on file and storage technologies (FAST)

作者： Zhang, Ming Hua, Yu Zuo, Pengfei Liu, Lurong Huazhong Univ Sci & Technol Wuhan Natl Lab Optoelect Sch Comp Wuhan Hubei Peoples R China

ISBN: (纸本)9781939133267

Persistent memory (PM) disaggregation improves the resource utilization and failure isolation to build a scalable and cost-effective remote memory pool. However, due to offering limited computing power and overlooking the bandwidth and persistence properties of real PMs, existing distributed transaction schemes, which are designed for legacy DRAM-based monolithic servers, fail to efficiently work in the disaggregated PM architecture. In this paper, we propose FORD, a Fast One-sided RDMA-based Distributed transaction system. FORD thoroughly leverages one-sided RDMA to handle transactions for bypassing the remote CPU in PM pool. To reduce the round trips, FORD batches the read and lock operations into one request to eliminate extra locking and validations. To accelerate the transaction commit, FORD updates all the remote replicas in a single round trip with parallel undo logging and data visibility control. Moreover, considering the limited PM bandwidth, FORD enables the backup replicas to be read to alleviate the load on the primary replicas, thus improving the throughput. To efficiently guarantee the remote data persistency in the PM pool, FORD selectively flushes data to the backup replicas to mitigate the network overheads. Experimental results demonstrate that FORD improves the transaction throughput by up to 2.3 x and reduces the latency by up to 74.3% compared with the state-of-the-art systems.

关键词： Dynamic random access storage

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Closing the B⁺-tree vs. LSM-tree Write Amplification Gap on Modern storage Hardware with Built-in Transparent Compression 20

Closing the B<SUP>+</SUP>-tree vs. LSM-tree Write Amplificat...

引用

20th usenix conference on file and storage technologies (FAST)

作者： Qiao, Yifan Chen, Xubin Zheng, Ning Li, Jiangpeng Liu, Yang Zhang, Tong Rensselaer Polytech Inst Troy NY 12180 USA Google Inc Kirkland WA USA ScaleFlux Inc Milpitas CA USA

ISBN: (纸本)9781939133267

this paper studies how B+-tree could take full advantage of modern storage hardware with built-in transparent compression. Recent years witnessed significant interest in applying log-structured merge tree (LSM-tree) as an alternative to B+-tree, driven by the widely accepted belief that LSM-tree has distinct advantages in terms of storage cost and write amplification. this paper aims to revisit this belief upon the arrival of storage hardware with built-in transparent compression. Advanced storage appliances and emerging computational storage drives perform hardware-based lossless data compression, transparent to OS and user applications. Beyond straight-forwardly reducing the storage cost gap between B+-tree and LSM-tree, such storage hardware creates new opportunities to re-think the implementation of B+-tree. this paper presents three simple design techniques that can leverage such modem storage hardware to significantly reduce the B+-tree write amplification. Experiments on a commercial storage drive with built-in transparent compression show that the proposed design techniques can reduce the B+-tree write amplification by over 10x. Compared with RocksDB (a key-value store built upon LSM-tree), the enhanced B+-tree implementation can achieve similar or even smaller write amplification.

关键词： Digital storage

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NyxCache: Flexible and Efficient Multi -tenant Persistent Memory Caching 20

NyxCache: Flexible and Efficient Multi -tenant Persistent Me...

引用

20th usenix conference on file and storage technologies (FAST)

作者： Wu, Kan Tu, Kaiwei Patel, Yuvraj Sen, Rathijit Park, Kwanghyun Arpaci-Dusseau, Andrea C. Arpaci-Dusseau, Remzi H. Univ Wisconsin Madison Madison WI 53706 USA Microsoft Redmond WA USA

ISBN: (纸本)9781939133267

We present NyxCache (Nyx), an access regulation framework for multitenant persistent memory (PM) caching that supports light-weight access regulation, per-cache resource usage estimation and inter-cache interference analysis. With these mechanisms and existing admission control and capacity allocation logic, we build important sharing policies such as resourcelimiting, QoS-awareness, fair slowdown, and proportional sharing: Nyx resource-limiting can accurately limit PM usage of each cache, providing up to 5 x better performance isolation than a bandwidthlimiting method. Nyx QoS can provide QoS guarantees to latencycritical caches while providing higher throughput (up to 6 x vs. previous DRAM-based approaches) to best-effort caches that are not interfering. Finally, we show that Nyx is useful for realistic workloads, isolating write spikes, and ensuring that important caches are not slowed down by increased best-effort traffic.

关键词： Dynamic random access storage

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LLLFS: A Low-latency Library file System for Persistent Memory 15

LLLFS: A Low-latency Library File System for Persistent Memo...

引用

IEEE/ACM 15th International conference on Utility and Cloud Computing (UCC) / 9th International conference on Big Data Computing, Applications and technologies (BDCAT)

作者： Matsuzawa, Keiichi Shinagawa, Takahiro Hitachi Ltd Yokohama Kanagawa Japan Univ Tokyo Tokyo Japan

ISBN: (纸本)9781665460873

Persistent memory (PM) is a promising storage medium for reducing file access latency, which is critical for modern applications. Unfortunately, traditional storage stacks designed for slow media significantly impair the low-latency access capability of PM. We propose LLLFS, a low-latency library file system for PM. Based on the observation that many modern applications access files under their directories exclusively, LLLFS stores both file data and metadata in a process-local file system on PM so that files are fully accessible in user space without system calls and synchronization. LLLFS keeps POSIX compatibility while allowing application-specific parameter tuning. Experimental results demonstrated that LLLFS outperformed conventional and PM-optimized file systems by 56.0% and 37.7%, respectively, in database update operations.

关键词： file system persistent memory storage

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MT²: Memory Bandwidth Regulation on Hybrid NVM/DRAM Platforms 20

MT<SUP>2</SUP>: Memory Bandwidth Regulation on Hybrid NVM/DR...

引用

20th usenix conference on file and storage technologies (FAST)

作者： Yi, Jifei Dong, Benchao Dong, Mingkai Tong, Ruizhe Chen, Haibo Shanghai Jiao Tong Univ Inst Parallel & Distributed Syst Engn Res Ctr Domain Specif Operating Syst Minist Educ Shanghai Peoples R China

ISBN: (纸本)9781939133267

Non-volatile memory (NVM) has emerged as a new memory media, resulting in a hybrid NVM/DRAM configuration in typical servers. Memory-intensive applications competing for the scant memory bandwidth can yield degraded performance. Identifying the noisy neighbors and regulating the memory bandwidth usage of them can alleviate the contention and achieve better performance. this paper finds that bandwidth competition is more severe on hybrid platforms and can even significantly degrade the total system bandwidth. Besides the absolute bandwidth, the competition is also highly correlated with the bandwidth type. Unfortunately, NVM and DRAM share the same memory bus, and their traffic is mixed together and interferes with each other, making memory bandwidth regulation a challenge on hybrid NVM/DRAM platforms. this paper first presents an analysis of memory traffic interference and then introduces MT2 to regulate memory bandwidth among concurrent applications on hybrid NVM/DRAM platforms. Specifically, MT2 first detects memory traffic interference and monitors different types of memory bandwidth of applications from the mixed traffic through hardware monitors and software reports. MT2 then leverages a dynamic bandwidth throttling algorithm to regulate memory bandwidth with multiple mechanisms. To expose such a facility to applications, we integrate MT2 into the cgroup mechanism by adding a new subsystem for memory bandwidth regulation. the evaluation shows that MT2 can accurately identify the noisy neighbors, and the regulation on them allows other applications to improve performance by up to 2.6 x compared to running with unrestricted noisy neighbors.

关键词： Dynamic random access storage

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Modernizing file System through In-storage Indexing 15

Modernizing File System through In-Storage Indexing

引用

usenix Annual Technical conference / 15th usenix Symposium on Operating Systems Design and Implementation (OSDI)

作者： Koo, Jinhyung Im, Junsu Song, Jooyoung Park, Juhyung Lee, Eunji Kim, Bryan S. Lee, Sungjin DGIST Daegu South Korea Syracuse Univ Syracuse NY 13244 USA

ISBN: (纸本)9781939133229

We argue that a key-value interface between a file system and an SSD is superior to the legacy block interface by presenting KEVIN. KEVIN combines a fast, lightweight, and POSIX-compliant file system with a key-value storage device that performs in-storage indexing. We implement a variant of a log-structured merge tree in the storage device that not only indexes file objects, but also supports transactions and manages physical storage space. As a result, the design of a file system with respect to space management and crash consistency is simplified, requiring only 10.8K LOC for full functionality. We demonstrate that KEVIN reduces the amount of I/O traffic between the host and the device, and remains particularly robust as the system ages and the data become fragmented. Our approach outperforms existing file systems on a block SSD by a wide margin - 6.2x on average - for metadata-intensive benchmarks. For realistic workloads, KEVIN improves throughput by 68% on average.

关键词： Virtual storage

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Implement a storage Engine to Improve Query Performance Based on a Computational storage Device 15th

Implement a Storage Engine to Improve Query Performance Base...

引用

15th International conference on Computer Science and its Applications, CSA 2023 and 17th KIPS International conference on Ubiquitous Information technologies and Applications, CUTE 2023

作者： Choi, Ria An, Jaehoon Kim, Younghwan Korea Electronics Technology Institute 25 Saenari-ro Gyeonggi-do Seongnam-si Korea Republic of

ISBN: (纸本)9789819724468

Recently, as the importance of database management systems that manage massive amounts of data has been increasing, a computing environment for memory-centric or storage-centric is required rather than processing-centric computing. By implementing a distributed file system separated into computing and storage, large amounts of data can be processed in parallel to be stored and managed efficiently, and availability and scalability can be improved while maintaining multiple copies in storage. However, indiscriminate use of Compute storage Devices (CSD) resources can lead to lower performance than traditional DataBase Management System (DBMS) and slower query speeds due to storage loads. this paper proposes a CSD-based storage Engine that can overcome the limitations of traditional DBMS technology and efficiently manage large amounts of data in an environment where the DBMS engine and storage are separated. Scheduling is performed to speed up query execution and data is stored and managed based on cache data to reduce host engine and CSD resource usage. © the Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： storage management

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Performance Impact of NVMe-Over-TCP on HDFS Workloads 15

Performance Impact of NVMe-Over-TCP on HDFS Workloads

引用

IEEE/ACM 15th International conference on Utility and Cloud Computing (UCC) / 9th International conference on Big Data Computing, Applications and technologies (BDCAT)

作者： Sharma, Nikita Li, Ruihao Wu, Qinzhe John, Lizy K. Univ Texas Austin Dept Comp Sci Austin TX 78712 USA Univ Texas Austin Dept Elect & Comp Engn Austin TX 78712 USA

ISBN: (纸本)9781665460873

storage is one of the important components in datacenters. As the data volume rises and the service scale grows, some workloads like database demand increasing amount of storage. While a single server can only host a limited number of disks, distributed file systems (e.g., Hadoop Distributed file System referred to as HDFS) enable accessing disks mounted on the other servers in the cluster, satisfying the storage requirements. On the other side, NVMe-over-Fabric protocols (e.g., NVMe-over-TCP) have been released as a solution on the device level to provide access to remote NVMe disks. therefore, for those applications developed on top of HDFS, there are at least two choices to make use of the storage resources distributed in datacenters. A concern is whether NVMe-over-TCP will hurt the performance. the evaluation in this paper reveals that the performance degradation NVMe-over-TCP caused on HDFS-based workloads is limited, suggesting NVMe-over-TCP a performant and economical solution in datacenter design to support workloads that needs a lot of storage (such as database applications).

关键词： storage datacenter NVMe-over-TCP Hadoop Distributed file System

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proceedings of the 15th usenix Symposium on Operating Systems Design and Implementation, OSDI 2021

Proceedings of the 15th USENIX Symposium on Operating System...

引用

15th usenix Symposium on Operating Systems Design and Implementation, OSDI 2021

ISBN: (纸本)9781939133229

the proceedings contain 31 papers. the topics discussed include: Pollux: co-adaptive cluster scheduling for goodput-optimized deep learning;pet: optimizing tensor programs with partially equivalent transformations and automated corrections;privacy budget scheduling;modernizing file system through in-storage indexing;Nap: a black-box approach to NUMA-aware persistent memory indexes;optimizing storage performance with calibrated interrupts;ZNS+: advanced zoned namespace interface for supporting in-storage zone compaction;DMon: efficient detection and correction of data locality problems using selective profiling;Polyjuice: high-performance transactions via learned concurrency control;and retrofitting high availability mechanism to tame hybrid transaction/analytical processing.

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