tag: side-channel attack

A high speed processor for elliptic curve cryptography over NIST prime field
By Technical Paper Link - 17 Feb, 2022 - Comments: 0

Abstract "Elliptic curve cryptography (ECC), as one of the public key cryptography systems, has been widely applied to many security applications. It is challenging to implement a scalar multiplication (SM) operation which has the highest computational complexity in ECC. In this study, we propose a hardware processor which achieves high speed and high security for ECC. We first present a three... » read more

Uncovering In-DRAM RowHammer Protection Mechanisms: A New Methodology, Custom RowHammer Patterns, and Implications
By Technical Paper Link - 15 Nov, 2021 - Comments: 0

Abstract: "The RowHammer vulnerability in DRAM is a critical threat to system security. To protect against RowHammer, vendors commit to security-through-obscurity: modern DRAM chips rely on undocumented, proprietary, on-die mitigations, commonly known as Target Row Refresh (TRR). At a high level, TRR detects and refreshes potential RowHammer-victim rows, but its exact are not openly disclose... » read more

HECTOR-V: A Heterogeneous CPU Architecture for a Secure RISC-V Execution Environment
By Technical Paper Link - 09 Nov, 2021 - Comments: 0

Summary "To ensure secure and trustworthy execution of applications, vendors frequently embed trusted execution environments into their systems. Here, applications are protected from adversaries, including a malicious operating system. TEEs are usually built by integrating protection mechanisms directly into the processor or by using dedicated external secure elements. However, both of these... » read more

Database Reconstruction from Noisy Volumes: A Cache Side-Channel Attack on SQLite
By Technical Paper Link - 08 Sep, 2021 - Comments: 0

Authors: Aria Shahverdi, University of Maryland; Mahammad Shirinov, Bilkent University; Dana Dachman-Soled, University of Maryland Abstract: "We demonstrate the feasibility of database reconstruction under a cache side-channel attack on SQLite. Specifically, we present a Flush+Reload attack on SQLite that obtains approximate (or "noisy") volumes of range queries made to a private database... » read more

Building A More Secure SoC
By Gajinder Panesar - 05 Aug, 2021 - Comments: 1

SoC integrators know that a software-only chip security plan leaves devices open to attack. All that a hacker needs to do is find a way to replace key parts of the bootloader or the low-level firmware to compromise other software in the system used to support secure access. The most simple attacks come remotely over a network, and these can be patched with software upgrades. However, we see ... » read more

What Makes A Chip Tamper-Proof?
By Bryon Moyer - 04 Jun, 2020 - Comments: 5

The cyber world is the next major battlefield, and attackers are busily looking for ways to disrupt critical infrastructure. There is widespread proof this is happening. “Twenty-six percent of the U.S. power grid was found to be hosting Trojans," said Haydn Povey, IAR Systems' general manager of embedded security solutions. "In a cyber-warfare situation, that's the first thing that would b... » read more

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