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Six Minutes: Public Speaking and Presentation Skills Blog. Prime Number Hide-and-Seek: How the RSA Cipher Works. Preface: What is This? The RSA cipher is a fascinating example of how some of the most abstract mathematical subjects find applications in the real world. Few are the mathematicians who study creatures like the prime numbers with the hope or even desire for their discoveries to be useful outside of their own domain. But every now and then that is exactly what happens. This text explains the mathematics behind RSA -- how and why it works. The intended audience is just about anyone who is interested in the topic and who can remember a few basic facts from algebra: what a variable is, the difference between a prime number and a composite number, and the like. The most important mathematical facts necessary for understanding RSA's foundations are reviewed near the beginning.
Even if you are familiar with everything covered in these sections, I would recommend that you at least skim through them. Before getting started, I should make some observations on the mathematical notation used here. or: Blur Faces In Video. [cp_youtube id="n_X8jWng9aM" points="15"] This tutorial will show you how you can blur out peoples faces in videos and make them anonymous. Here are the links used in this video: For more Wax 2.0 tutorials, you can watch these videos: Beginners Tutorial – Advanced Special Effects – Adding Explosions – 3D Compositing – Creating Video Introductions – Cheap Bullet Time Effect – Home.