As a part of E0-213 (coursework: Quantum Safe Cryptography) at IISc Bengaluru, we explored the crypt analysis of RC4 (a PNRG) via the necessary literature review. We have summarized our findings in the attached documents.
$\rightarrow$ Single byte biases
$\rightarrow$ Consequitive byte biases
We have analysed both of them, as mentioned in the slides.