Fundamentals of InfoSecintermediate
Select ALL statements that correctly describe a Certificate Signing Request (CSR).
Answer
It contains the server's public key and subject information., The server signs it to show possession of the corresponding private key., A Certificate Authority checks and signs the request when issuing a certificate.
Explanation
### Why this is right
- **A** is true: the request contains public-key and subject information.
- **C** is true: the server signs the request to demonstrate possession of the matching private key.
- **D** is true: the Certificate Authority checks and signs the request as part of issuing a certificate.
### The concept
A CSR is a request, not the issued certificate and not a container for the server's private key. The server keeps that private key under its own control. The CA uses the request information to create a certificate that binds subject information to the public key.
### The other options
- **B. It contains the server's private key so the authority can keep it**: the private key must not be included in the CSR; the server retains it.
### Terms
- **Certificate Signing Request (CSR)**: a request containing public-key and subject information for certificate issuance.
- **Certificate Authority (CA)**: a trusted issuer that checks and signs certificates.
### Remember
A CSR carries the public key, never the server's private key.
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