Intermediate
Cybersecurity & Cryptography
Q49 / 100
What is a certificate authority (CA)?
Correct! Well done.
Incorrect.
The correct answer is B) A trusted entity that issues and signs digital certificates, vouching for the binding between a public key and an identity in the PKI trust model
B
Correct Answer
A trusted entity that issues and signs digital certificates, vouching for the binding between a public key and an identity in the PKI trust model
Explanation
CAs (DigiCert, Let's Encrypt, Google Trust Services) sign certificates after verifying domain ownership (DV) or organization identity (OV/EV). Browsers/OSes include root CAs in trust stores.
Progress
49/100