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You're reading from  CompTIA Security+: SY0-601 Certification Guide - Second Edition

Product typeBook
Published inDec 2020
PublisherPackt
ISBN-139781800564244
Edition2nd Edition
Tools
Kali Linux
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Cybersecurity
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Ian Neil
Ian Neil
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Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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PKI Concepts

The PKI provides asymmetric techniques using two keys: a public key and a private key. There is a certificate hierarchy, which is called the Certificate Authority, that manages, signs, issues, validates, and revokes certificates. Let's first look at the components of the certificate hierarchy. A certificate is known as an X509 certificate.

Certificate Hierarchy

The Certificate Authority (CA) is the ultimate authority as it holds the master key, also known as the root key, for signing all of the certificates that it gives to the Intermediary who issues the certificate to the requester.

Figure 2.1 – CA Hierarchy

Let's look at the CA hierarchy shown in the preceding diagram in more depth:

  • Online CA: An internal online CA is always up and running so that people in the company can request a certificate at any time of the day or night. This would not be the case in a government or top-security environment.
  • Offline...
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CompTIA Security+: SY0-601 Certification Guide - Second Edition
Published in: Dec 2020Publisher: PacktISBN-13: 9781800564244
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Author (1)

author image
Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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