Wireless and mobile communications are one of the most prominent technological successes of the last few decades. They provide great economic and societal benefits. However, as very well-articulated in the National Science Foundation program solicitation for the Next Era of Wireless and Spectrum, existing approaches to spectrum access and management are increasingly showing inadequacy in addressing rising challenges for this emerging era of wireless systems. A plethora of emerging applications, such as Massive IoT (MIoT), autonomous cars, robotics, and augmented reality are driving the demand for spectrum to new heights. Spectrum scarcity is becoming a critical issue. Simultaneously, wireless systems, especially their physical layers, are increasingly implemented in software. Software Defined Radios (SDRs) are becoming more capable, featuring small form factors and low costs. This development is a double-edged sword: it facilitates the creation of innovative wireless communication techniques to tackle spectrum access and management challenges (such as flexibility, agility, and sensing). However, it also lowers the barrier for misbehaving devices and increases the potential for attacks on robustness, privacy, and security. Unfortunately, current methods for enforcing spectrum access policies are inadequate to handle the combined challenges of scarcity, rising demand, and the ease with which malicious behavior can occur. This project addresses the critical need for mechanisms t