Dfs covert channels on multi-core platforms

Author: suvq

August undefined, 2024

Webment mechanism brings new covert and side channel vulnera-bilities to current multi-core and multi-processor platforms. It can be exploited to break down security protection mecha-nisms relying on resource partition and isolation, e.g., virtual machines (VMs). The revealed covert channel is based on two properties of the uncore power management ... WebCache timing channel can be combined with speculative instructions to launch powerful attack which enable the spy to read secret values of the kernel or other processes. Software layers in the computing stack cannot fully eliminate cache timing channels since caches are typically shared between multiple processes.

DVFSspy: Using Dynamic Voltage and Frequency Scaling …

WebWe implement this covert channel both in a single threaded and simultaneous multi-threading (SMT) environment and show the feasibility of such a communication. Our … WebThe storage covert channels that indirectly write the infor-mation into shared resources and the timing covert channels that are designed based on the resource access time are two signiﬁcant implementations of covert channels [3], [1]. The typical timing covert channels including those by cache [4], memory bus [5], shared memory [6], branch ... dancing on ice 2022 brendan cole

DVFSspy: Using Dynamic Voltage and Frequency Scaling as a …

WebJan 16, 2024 · Most modern multi-core CPUs are implemented in System-on-a-Chip (SoC), where CPU and integrated Graphics Processing Unit (iGPU) share physical memory and some microarchitectures. iGPUs provide horsepower required by computeintensive tasks, taking off CPU's heavy workload. These tasks include rendering graphics, executing … WebOur experiments on an Intel Xeon server platform demonstrate covert thermal channels that achieve up to 12.5 bps and weak thermal side channels that can detect processes executed on neighbouring cores. This work therefore shows a limitation in the isolation that can be achieved on existing multi-core systems. WebWe implement this covert channel both in a single threaded and simultaneous multi-threading (SMT) environment and show the feasibility of such a communication. Our experiments on Intel Xeon server platform demonstrate dynamic frequency scaling covert channels that can achieve up to 20 bits/second. dancing on ice 2021 cast

Thermal Covert Channels on Multi-core Platforms - ETH Z

On the capacity of thermal covert channels in multicores

WebWe demonstrate a template that adversaries may use to construct covert timing channels through manipulating combinations of coherence states and data placement in different caches. ... Doroslovacki, M., Venkataramani, G.: DFS covert channels on multi-core platforms. In: Proceedings of IEEE International Conference on Very Large Scale ... WebIt is shown that the Internet’s potential to support more sophisticated covert channels is considerably greater than suggested by most existing simple channels and that machine … birkenstock 1 year warrantyWebCovert channel analysis is a critical, yet challenging, security engineering task. Despite numerous descriptions of covert channel attacks on ground-based systems and networks, such attacks have not been examined in the context of data bus protocols used in commercial space platforms hosting government payloads. dancing on ice 2022 kye whyte

"WebJan 25, 2024 · Video. A Distributed File System (DFS) as the name suggests, is a file system that is distributed on multiple file servers or multiple locations. It allows … " - Dfs covert channels on multi-core platforms

Dfs covert channels on multi-core platforms

DVFSspy: Using Dynamic Voltage and Frequency Scaling …

http://blog.dlink.com/dfs-faster-wi-fi-why-you-want-it/ Webcreate a covert channel between two execution contexts running onthe same core but within two different SMTthreads. We call this covert channel IccSMTcovert. 3) IChannels exploits Multi-Throttling-Cores to create a covert channel between two execution contexts runningon two different physical cores. We call this covert channel IccCoresCovert.

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WebOct 1, 2024 · By modulating the core frequency with dynamic frequency scaling (DFS) technique, a covert channel has been created in a multi-core platform [11]. The use of … WebMar 24, 2015 · Our experiments on an x86-based platform demonstrate covert thermal channels that achieve up to 12.5 bps and a weak side channel that can detect processes …

WebApr 18, 2016 · Modern multicore processors feature easily accessible temperature sensors that provide useful information for dynamic thermal management. These sensors were recently shown to be a potential security threat, since otherwise isolated applications can exploit them to establish a thermal covert channel and leak restricted information. … WebJan 6, 2024 · The Distributed File System (DFS) functions provide the ability to logically group shares on multiple servers and to transparently link shares into a single …

WebOur experiments on an Intel Xeon server platform demonstrate covert thermal channels that achieve up to 12.5 bps and weak thermal side channels that can detect processes executed on neighbouring cores. This work therefore shows a limitation in the isolation that can be achieved on existing multi-core systems. WebJul 14, 2024 · This paper shows how the automatic frequency scaling provided by Intel Turbo Boost can be used to construct a covert channel that is both hard to prevent …

Web2.We evaluate the proposed covert channels under the binary symmetric model. Results of our experiments are reported in Table 3. A discussion of our mem-ory controller-based covert channel against state-of-the-art covert is pro-vided. We also discuss potential mitigation strategies. Outline. The remainder of the paper is organized as follows.

WebDFS covert channels on multi-core platforms Abstract: Covert channels provide a secret communication medium between two malicious processes to exfiltrate information stealthily that violates the security policy of a system. In this paper, we demonstrate a … birkenstock 1774 arizona whiteWebFeb 1, 2024 · Our experiments on an x86-based platform demonstrate covert thermal channels that achieve up to 12.5 bps and a weak side channel that can detect processes executed on neighbouring cores. dancing on ice 2021 facebookWebside channels. Speciﬁcally, we show that the processor core temperature can be used both as a side channel as well as a covert communication channel even when the system implements strong spatial and temporal partition-ing. Our experiments on an x86-based platform demon-strate covert thermal channels that achieve up to 12.5 bps birkenstock 10 percent offWebMay 3, 2024 · The heat transfers are known as thermal covert channels (TCC) [].Thermal covert channels can be traced in multi-core systems. As in any communication system, a thermal covert channel includes a pair consisting of a transmitter and a receiver [].On the transmitter side, the temperature signals are generated from sensitive data such as user … dancing on ice 2022 finalsWebMurugappan Alagappan, Jeyavijayan Rajendran, Milos Doroslovacki and Guru Venkataramani, DFS Covert Channels on Multi-Core Platforms, 25th IFIP/IEEE … dancing on ice 2021 itv hubWebSuch dependency implies a covert channel threat in multi-core platforms. Specifically, the power status of the uncore reflects the workload pattern of the active core, and it can be probed by any process running on the processor. This allows the process to infer the workload information of the active core. dancing on ice 2022 latest dancing on ice 2022 kimberly and mark