Is RSA Currently in Use Today?

The use of RSA is practically ubiquitous today. It is currently used in a wide variety of products, platforms, and industries around the world. It is found in many commercial software products and is planned to be in many more. It is built into current operating systems by Microsoft, Apple, Sun, and Novell. In hardware, RSA can be found in secure telephones, on Ethernet network cards, and on smart cards. In addition, RSA is incorporated into all of the major protocols for secure Internet communications, including SSL (see Question 134), S-HTTP (see Question 133), SEPP, S/MIME, S/WAN, STT and PCT (see Question 136). It is also used internally in many institutions, including branches of the U.S. government, major corporations, national laboratories, and universities.