US Patent 9558358 Random number generator in a virtualized environment

Techniques are described for generating high quality entropy in a software only or a hardware assisted software environment, such as a virtualized environment. Embodiments of the invention describe creating an entropy pool within the virtualized environment using multiple sources of entropy. The entropy pool may be used in creating dynamically customizable and high entropy RNG and PUF. The sources of entropy may include trusted sources, untrusted sources and entropy sources with a varied scale of trust and entropy quality associated with them.