Book Image

CISSP in 21 Days - Second Edition

By : M. L. Srinivasan, None M.L.Srinivasan
Book Image

CISSP in 21 Days - Second Edition

By: M. L. Srinivasan, None M.L.Srinivasan

Overview of this book

Certified Information Systems Security Professional (CISSP) is an internationally recognized and coveted qualification. Success in this respected exam opens the door to your dream job as a security expert with an eye-catching salary. But passing the final exam is challenging. Every year a lot of candidates do not prepare sufficiently for the examination, and fail at the final stage. This happens when they cover everything but do not revise properly and hence lack confidence. This simple yet informative book will take you through the final weeks before the exam with a day-by-day plan covering all of the exam topics. It will build your confidence and enable you to crack the Gold Standard exam, knowing that you have done all you can to prepare for the big day. This book provides concise explanations of important concepts in all 10 domains of the CISSP Common Body of Knowledge (CBK). Starting with Confidentiality, Integrity, and Availability, you will focus on classifying information and supporting assets. You will understand data handling requirements for sensitive information before gradually moving on to using secure design principles while implementing and managing engineering processes. You will understand the application of cryptography in communication security and prevent or mitigate strategies for network attacks. You will also learn security control requirements and how to assess their effectiveness. Finally, you will explore advanced topics such as automated and manual test result analysis and reporting methods. A complete mock test is included at the end to evaluate whether you're ready for the exam. This book is not a replacement for full study guides; instead, it builds on and reemphasizes concepts learned from them.
Table of Contents (27 chapters)
CISSP in 21 Days Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Public Key Infrastructure (PKI)


PKI is a framework which enables the integration of various services that are related to cryptography.

The aim of PKI is to provide confidentiality, integrity, access control, authentication, and most importantly non-repudiation.

Note

Non-repudiation is a concept or a way to ensure that the sender of a message cannot deny in future the sending of such a message. This is the confirmation of the authenticity of the sender's message. Because it is encrypted with a private key, and only one person has the private key, it has to be this person who sent the message/e-mail. One of the important audit checks for non-repudiation is the time stamp. The time stamp is an audit trail that provides the information on the time the message was sent.

Encryption/decryption, digital signature, and key exchange are the three primary functions of a PKI.

RSS and Elliptic curve algorithms provide all three primary functions; that is, encryption/decryption, digital signature, and key...