Certified Information Systems Security Professional (CISSP) — Question 91

A system developer has a requirement for an application to check for a secure digital signature before the application is accessed on a user's laptop. Which security mechanism addresses this requirement?

Answer options

• A. Trusted Platform Module (TPM)
• B. Certificate revocation list (CRL) policy
• C. Key exchange
• D. Hardware encryption

Correct answer: A

Explanation

The Trusted Platform Module (TPM) is a hardware component that provides secure generation and storage of cryptographic keys, which can be used to verify digital signatures. The other options, while related to security, do not specifically provide the capability to check for a secure digital signature before application access.