tag: side channel attacks

Leaky Buddies: Cross-Component Covert Channels on Integrated CPU-GPU Systems
By Technical Paper Link - 11 Aug, 2021 - Comments: 0

Find Technical Paper link here. Abstract: "Graphics Processing Units (GPUs) are ubiquitous components used across the range of today’s computing platforms, from phones and tablets, through personal computers, to high-end server class platforms. With the increasing importance of graphics and video workloads, recent processors are shipped with GPU devices that are integrated on the same chi... » read more

TimeCache: Using Time to Eliminate Cache Side Channels when Sharing Software
By Technical Paper Link - 14 Jun, 2021 - Comments: 0

"Abstract—Timing side channels have been used to extract cryptographic keys and sensitive documents even from trusted enclaves. Specifically, cache side channels created by reuse of shared code or data in the memory hierarchy have been exploited by several known attacks, e.g., evict+reload for recovering an RSA key and Spectre variants for leaking speculatively loaded data. In this paper, we ... » read more

Security Tradeoffs In Chips And AI Systems
By Ed Sperling - 03 Nov, 2020 - Comments: 0

Semiconductor Engineering sat down to discuss the cost and effectiveness of security in chip architectures and AI systems with with Vic Kulkarni, vice president and chief strategist at Ansys; Jason Oberg, CTO and co-founder of Tortuga Logic; Pamela Norton, CEO and founder of Borsetta; Ron Perez, fellow and technical lead for security architecture at Intel; and Tim Whitfield, vice president of s... » read more

Scaling Anti-Tamper Protection To Meet Escalating Threats
By Scott Best - 04 Jun, 2020 - Comments: 0

Anti-tamper tends to be one of those catchall phrases encompassing any countermeasure on a security chip. A more precise definition would be that anti-tamper protection is any collection of countermeasures that serves to thwart an adversary’s attempt to monitor or affect the correct operation of a chip or a security core within a chip. Given that, it can be useful to think about a hierarchy o... » read more

Power/Performance Bits: March 24
By Jesse Allen - 24 Mar, 2020 - Comments: 0

Backscatter Wi-Fi radio Engineers at the University of California San Diego developed an ultra-low power Wi-Fi radio they say could enable portable IoT devices. Using 5,000 times less power than standard Wi-Fi radios, the device consumes 28 microwatts while transmitting data at a rate of 2 megabits per second over a range of up to 21 meters. "You can connect your phone, your smart devices, ... » read more

Hardware Attack Surface Widening
By Ed Sperling - 06 Feb, 2020 - Comments: 0

An expanding attack surface in hardware, coupled with increasing complexity inside and outside of chips, is making it far more difficult to secure systems against a variety of new and existing types of attacks. Security experts have been warning about the growing threat for some time, but it is being made worse by the need to gather data from more places and to process it with AI/ML/DL. So e... » read more

Taking A Closer Look At Side Channel Attacks
By Gary Kenworthy - 05 Dec, 2019 - Comments: 0

In last month’s Semiconductor Engineering article, we explored the basics of side channel attacks (SCAs). As we discussed, all cryptographic algorithms are subject to side channel attacks, with vulnerabilities extending across all platforms and form factors. In this article, we’ll be taking a closer look at the two primary categories of side channel attacks: simple power analysis (SPA) and ... » read more

Understanding Side Channel Attacks
By Gary Kenworthy - 11 Nov, 2019 - Comments: 0

Side channel attacks (SCAs) differ considerably from conventional cryptographic attacks. Essentially, side channel attacks – which can be very low-cost and non-invasive – exploit data gathered from side channels. A side channel can be exploited by simply placing an antenna, magnetic probe, or other sensor near a device or system. This allows an attacker to measure power consumption, voltage... » read more

Bolstering Security For AI Applications
By Neeraj Paliwal - 14 Oct, 2019 - Comments: 0

Hardware accelerators that run sophisticated artificial intelligence (AI) and machine learning (ML) algorithms have become increasingly prevalent in data centers and endpoint devices. As such, protecting sensitive and lucrative data running on AI hardware from a range of threats is now a priority for many companies. Indeed, a determined attacker can either manipulate or steal training data, inf... » read more

New Security Risks Create Need For Stealthy Chips
By Ed Sperling - 03 Oct, 2019 - Comments: 0

Semiconductors are becoming more vulnerable to attacks at each new process node due to thinner materials used to make these devices, as well as advances in equipment used to simulate how those chips behave. Thinner chips are now emitting light, electromagnetic radiation and various other types of noise, which can be observed using infrared and acoustic sensors. In addition, more powerful too... » read more

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