8 citations · 18 across the 7 of their papers we have counts for
7 papers · 1 filter
Devlore: Device Interrupt Protection for Confidential VMs
Andrin Bertschi, Supraja Sridhara, Mark Kuhne +6
Modern confidential computing executes sensitive computation in an abstraction called confidential VMs and protects from the hypervisor, host OS, and other co-resident VMs. It has…
Aster: Fixing the Android TEE Ecosystem with Arm CCA
Mark Kuhne, Supraja Sridhara, Andrin Bertschi +3
The Android ecosystem relies on either TrustZone (e.g., OP-TEE, QTEE, Trusty) or trusted hypervisors (pKVM, Gunyah) to isolate security-sensitive services from malicious apps and A…
SIGY: Breaking Intel SGX Enclaves with Malicious Exceptions & Signals
Supraja Sridhara, Andrin Bertschi, Benedict Schlüter +1
User programs recover from hardware exceptions and respond to signals by executing custom handlers that they register specifically for such events. We present SIGY attack, which ab…
WeSee: Using Malicious #VC Interrupts to Break AMD SEV-SNP
Benedict Schlüter, Supraja Sridhara, Andrin Bertschi +1
AMD SEV-SNP offers VM-level trusted execution environments (TEEs) to protect the confidentiality and integrity for sensitive cloud workloads from untrusted hypervisor controlled by…
Heckler: Breaking Confidential VMs with Malicious Interrupts
Benedict Schlüter, Supraja Sridhara, Mark Kuhne +2
Hardware-based Trusted execution environments (TEEs) offer an isolation granularity of virtual machine abstraction. They provide confidential VMs (CVMs) that host security-sensitiv…
ACAI: Protecting Accelerator Execution with Arm Confidential Computing Architecture
Supraja Sridhara, Andrin Bertschi, Benedict Schlüter +3
Trusted execution environments in several existing and upcoming CPUs demonstrate the success of confidential computing, with the caveat that tenants cannot securely use accelerator…
Empowering Data Centers for Next Generation Trusted Computing
Aritra Dhar, Supraja Sridhara, Shweta Shinde +2
Modern data centers have grown beyond CPU nodes to provide domain-specific accelerators such as GPUs and FPGAs to their customers. From a security standpoint, cloud customers want…