Learn about how CAs digitally sign issued certificates to establish a chain of trust.
- Certificate Authorities are a crucial part…of the PKI hierarchy.…Certificate or Registration Authorities,…depending on where they exist in the hierarchy,…have a longer validity period…than a standard-issued certificate,…let's say for a user or a smartphone.…For example, a Certificate Authority might be valid…for 10 years where a certificate issued to a user…for the purposes of e-mail encryption might only be valid…for two years.…It's kind of like having a driver's license…or a passport that expires over time…for security reasons.…
Now, this is determined when you configure your environment…where certificates are issued if you are setting up a PKI.…The Certificate or Registration Authority…then can issue new certificates,…can renew certificates before they expire,…and can also revoke certificates…due to things like security compromise.…The authorities can also publish…a certificate revocation list, or a CRL,…over a variety of protocols, including things like http,…and this certificate revocation list can then be retrieved…
Author
Released
2/21/2019- Symmetric and asymmetric encrypting
- How certificates are issued and managed
- Configuring a Linux OpenSSL PKI environment
- How TLS supersedes SSL and is considered more secure
- Acquiring a web server certificate
- Acquiring a code-signing certificate
- Configuring a website with a certificate
- Securing files and folders with EFS
- Configuring a TLS VPN
Skill Level Beginner
Duration
Views
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Learning Cryptography and Network Security (2015)
with Lisa Bock1h 45m Intermediate
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Introduction
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What you should know2m 5s
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1. PKI Overview
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Cryptography overview4m 47s
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PKI hierarchy4m 47s
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Certificate authorities6m 29s
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Certificates8m 11s
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2. PKI CA Implementation
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3. PKI Certificate Acquisition
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SSL vs. TLS9m 50s
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4. PKI Certificate Usage
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Configure a TLS VPN8m 12s
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Conclusion
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Next steps1m 9s
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Video: Certificate authorities