CyberCertPrepSecurity FundamentalsCryptography FundamentalsEASYFree question
A software vendor publishes a SHA-256 checksum next to each installer so that users can confirm the file they downloaded has not been altered in transit. Which security property does the checksum verify?
- A.Confidentiality
- B.Availability
- C.Authorization
- D.Integrity
Why D is correct
A checksum lets the user detect any change to the file, which is integrity verification; it does not hide the content, keep the service reachable, or decide who may download it. Confidentiality would need encryption, availability concerns uptime, and authorization concerns permissions.
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