Abstract: The present disclosure provides a cache architecture comprising a cache memory having a tag storage and a data storage, a miss status holding register (MSHR) configured to track memory requests where each memory request includes a NoFill field, a safe history buffer (SHB) configured to store safe memory addresses and generate cache line fetch requests based on the stored safe memory addresses, and a cache controller configured to prevent cache fills for memory requests having the NoFill field set, send data to a processor without filling the cache memory when the NoFill field is set, and fill the cache memory with cache lines retrieved by the cache line fetch requests generated by the SHB. The cache architecture provides security against cache timing attacks by decorrelating cache fills from actual memory requests while maintaining performance through the safe history buffer mechanism.

Abstract: Systems and methods for random fill caching and prefetching for secure cache memories are provided. The system dynamically de-correlates fetching a cache line to the processor from filling the cache with this cache line, due to a demand memory access, in order to provide greater security from information leakage due to cache side-channel attacks on cache memories. The system includes a random fill engine which includes a random number generator and an adjustable random fill window. Also provided is an adaptive random fill caching system which dynamically adapts the random fill window to a wide variety of computational workloads. Systems and methods for cache prefetching to improve system performance using adaptive random fill prefetching and random fill prefetching are also provided.

Abstract: Systems and methods for random fill caching and prefetching for secure cache memories are provided. The system dynamically de-correlates fetching a cache line to the processor from filling the cache with this cache line, due to a demand memory access, in order to provide greater security from information leakage due to cache side-channel attacks on cache memories. The system includes a random fill engine which includes a random number generator and an adjustable random fill window. Also provided is an adaptive random fill caching system which dynamically adapts the random fill window to a wide variety of computational workloads. Systems and methods for cache prefetching to improve system performance using adaptive random fill prefetching and random fill prefetching are also provided.

Abstract: A system for security health monitoring and attestation of virtual machines in cloud computing systems is provided. The system includes a cloud server having a virtual machine and a hypervisor. The cloud server collects security measurement information and signs and hashes the security measurement information using a cryptography engine. The system also includes an attestation server for receiving the hashed security measurement information from the cloud server. The attestation server also verifies the signature and hash values, and interprets the security measurement information. The attestation server generates an attestation report based on the verification and interpretation of the security measurement information.

Abstract: Systems and methods for random fill caching and prefetching for secure cache memories are provided. The system dynamically de-correlates fetching a cache line to the processor from filling the cache with this cache line, due to a demand memory access, in order to provide greater security from information leakage due to cache side-channel attacks on cache memories. The system includes a random fill engine which includes a random number generator and an adjustable random fill window. Also provided is an adaptive random fill caching system which dynamically adapts the random fill window to a wide variety of computational workloads. Systems and methods for cache prefetching to improve system performance using adaptive random fill prefetching and random fill prefetching are also provided.

Abstract: Systems and methods for random fill caching and prefetching for secure cache memories are provided. The system dynamically de-correlates fetching a cache line to the processor from filling the cache with this cache line, due to a demand memory access, in order to provide greater security from information leakage due to cache side-channel attacks on cache memories. The system includes a random fill engine which includes a random number generator and an adjustable random fill window. Also provided is an adaptive random fill caching system which dynamically adapts the random fill window to a wide variety of computational workloads. Systems and methods for cache prefetching to improve system performance using adaptive random fill prefetching and random fill prefetching are also provided.

Abstract: A system for security health monitoring and attestation of virtual machines in cloud computing systems is provided. The system includes a cloud server having a virtual machine and a hypervisor. The cloud server collects security measurement information and signs and hashes the security measurement information using a cryptography engine. The system also includes an attestation server for receiving the hashed security measurement information from the cloud server. The attestation server also verifies the signature and hash values, and interprets the security measurement information. The attestation server generates an attestation report based on the verification and interpretation of the security measurement information.