GLOSSARY

3DES   A symmetric encryption standard. It improves Data Encryption Standard (DES) by encrypting data in three passes with separate keys. It was one of the standards evaluated by the National Institute of Standards and Technology (NIST) with Advanced Encryption Standard (AES), but was not selected. Compared to AES, it is a slower and processor-intensive block cipher but is still strong and used in some applications. Also called triple DES and three DES.

3G   Third generation of wireless technologies. 1G uses analog signals, and 2G uses digital signals. 3G provides higher transfer speeds using digital technologies.

4G   Fourth generation of wireless technologies. It’s an improvement over 3G and includes speeds as high as 100 Mbps for ...

Get SSCP Systems Security Certified Practitioner All-in-One Exam Guide, Third Edition, 3rd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.