Variable architecture for random number generators

摘要

A variable architecture for random number generators is disclosed. In some implementations, the architecture of a random number generator may be varied based on microcontroller-specific data stored on the microcontroller. For example, a random number generator module may be embedded in a microcontroller circuit. The random number generator module may be designed to receive input from data sources in the circuit that contain microcontroller-specific data (e.g., a unique chip identifier, data carried in fuse bits). In some implementations, the architecture of the random number generator module may be adjusted or varied based on the microcontroller-specific data.

主权项

1. A system comprising:
a variable ring oscillator including one or more digital circuit elements configured by one or more digital values unique to the system to produce a clock; and a variable linear feedback shift register coupled to the clock and configured by the one or more digital values to produce one or more pseudo random digital values.