Hardware security and trust have become a pressing issue during the last two decades due
to the globalization of the semiconductor supply chain and ubiquitous network connection of …

Side-channel attacks have become a severe threat to the confidentiality of computer
applications and systems. One popular type of such attacks is the microarchitectural attack …

We present BranchScope-a new side-channel attack where the attacker infers the direction
of an arbitrary conditional branch instruction in a victim program by manipulating the shared …

We introduce the first microarchitectural side channel attacks that leverage contention on the
CPU ring interconnect. There are two challenges that make it uniquely difficult to exploit this …

Hardware Performance Counters (HPCs) have been available in processors for more than a
decade. These counters can be used to monitor and measure events that occur at the CPU …

High-performance cryptographic code often relies on complex hand-tuned assembly
language that is customized for individual hardware platforms. Such code is difficult to …

In the era of microarchitectural side channels, vendors scramble to deploy mitigations for
transient execution attacks, but leave traditional side-channel attacks against sensitive …

Most commercial multi-core processors incorporate hardware coherence protocols to
support efficient data transfers and updates between their constituent cores. While hardware …

Spectre attacks and their many subsequent variants are a new vulnerability class affecting
modern CPUs. The attacks rely on the ability to misguide speculative execution, generally by …

Over the last two decades, side and covert channel research has shown a variety of ways of
exfiltrating information for a computer system. Processor microarchitectural timing-based …