45 citations · 46 across the 6 of their papers we have counts for
7 papers
faulTPM: Exposing AMD fTPMs' Deepest Secrets
Hans Niklas Jacob, Christian Werling, Robert Buhren +1
Trusted Platform Modules constitute an integral building block of modern security features. Moreover, as Windows 11 made a TPM 2.0 mandatory, they are subject to an ever-increasing…
EM-Fault It Yourself: Building a Replicable EMFI Setup for Desktop and Server Hardware
Niclas Kühnapfel, Robert Buhren, Hans Niklas Jacob +3
EMFI has become a popular fault injection (FI) technique due to its ability to inject faults precisely considering timing and location. Recently, ARM, RISC-V, and even x86 processi…
VIA: Analyzing Device Interfaces of Protected Virtual Machines
Felicitas Hetzelt, Martin Radev, Robert Buhren +2
Both AMD and Intel have presented technologies for confidential computing in cloud environments. The proposed solutions - AMD SEV (-ES, -SNP) and Intel TDX - protect Virtual Machin…
One Glitch to Rule Them All: Fault Injection Attacks Against AMD's Secure Encrypted Virtualization
Robert Buhren, Hans Niklas Jacob, Thilo Krachenfels +1
AMD Secure Encrypted Virtualization (SEV) offers protection mechanisms for virtual machines in untrusted environments through memory and register encryption. To separate security-s…
Insecure Until Proven Updated: Analyzing AMD SEV's Remote Attestation
Robert Buhren, Christian Werling, Jean-Pierre Seifert
Customers of cloud services have to trust the cloud providers, as they control the building blocks that form the cloud. This includes the hypervisor enabling the sharing of a singl…
Fault Attacks on Encrypted General Purpose Compute Platforms
Robert Buhren, Shay Gueron, Jan Nordholz +2
Adversaries with physical access to a target platform can perform cold boot or DMA attacks to extract sensitive data from the RAM. In response, several main-memory encryption schem…
Security Analysis of Encrypted Virtual Machines
Felicitas Hetzelt, Robert Buhren
Cloud computing has become indispensable in today's computer landscape. The flexibility it offers for customers as well as for providers has become a crucial factor for large parts…