Which file does an entity send to a certificate authority to request a certificate?

Which file does an entity send to a certificate authority to request a certificate?

• A. Private key
• B. Certificate signing request (CSR)
• C. Self-signed certificate
• D. Certificate

Answer: (B)

To obtain a certificate from a certificate authority, you first create a key pair and generate a Certificate Signing Request that includes your public key and identifying information. This CSR is the file you send to the CA to request a certificate. The CA uses the CSR to issue a certificate that binds your public key to your identity, after verifying the details. The private key should stay private and never be sent to the CA; it is what you use to prove possession of the corresponding public key. A self-signed certificate is created by you and signed with your own key, not requested from a CA. A certificate is the final issued document, not what you send to request one.

To obtain a certificate from a certificate authority, you first create a key pair and generate a Certificate Signing Request that includes your public key and identifying information. This CSR is the file you send to the CA to request a certificate. The CA uses the CSR to issue a certificate that binds your public key to your identity, after verifying the details.

The private key should stay private and never be sent to the CA; it is what you use to prove possession of the corresponding public key. A self-signed certificate is created by you and signed with your own key, not requested from a CA. A certificate is the final issued document, not what you send to request one.