Which of the following items is not typically found in a digital certificate?

• A. Public key
• B. Digital signature
• C. Serial number
• D. Personal password

Answer: (D)

A digital certificate serves to bind a public key to an entity’s identity and prove that binding has been issued by a trusted authority. Because of that, the certificate includes the public key itself, the issuer’s digital signature over the certificate data, the subject/identity information, a validity period, and a serial number used to uniquely identify the certificate (and facilitate revocation checks). The personal password is not part of the certificate; passwords are used to protect private keys or access keystores, not to be embedded in the certificate. So the item not typically found is the personal password.