Asymmetric Key Algorithms
Completion requirements
Previously you learned about asymmetric key algorithms and you should understand that asymmetric encryption requires two keys: public and private. As a review, using the flashcards define asymmetric key encryption, public key, private key, and digital certificate. Then read the section on asymmetric encryption.
X.509 is a standard for PKI digital certificate formatting that includes specifics such as the public key certificates, certificate revocation list, and attribute certifications. There are four main types of digital certificates issued by a Certificate Authority, as shown in the chart.
Types of Digital Certificates
| Digital Certificate | Description |
|---|---|
| End-entity Certificates |
|
| CA Certificates |
|
| Cross-certification Certificates |
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| Policy Certificates |
|