A Security Architect Is Designing a System to Satisfy User

question 238

Multiple Choice

A security architect is designing a system to satisfy user demand for reduced transaction time, increased security and message integrity, and improved cryptographic security. The resultant system will be used in an environment with a broad user base where many asynchronous transactions occur every minute and must be publicly verifiable. Which of the following solutions BEST meets all of the architect's objectives?

• A) An internal key infrastructure that allows users to digitally sign transaction logs
• B) An agreement with an entropy-as-a-service provider to increase the amount of randomness in generated keys.
• C) A publicly verified hashing algorithm that allows revalidation of message integrity at a future date.
• D) An open distributed transaction ledger that requires proof of work to append entries.

---

Definitions:

Datasheet View

A presentation style in database applications that displays data in rows and columns, similar to a spreadsheet.

Form View

A mode in database applications that displays a single record at a time for viewing or editing, as opposed to a table view showing multiple records.

Filter

A software feature that allows users to sift through data to display only the information that meets certain criteria.

Unfilter Button

A control in software applications that removes any active filters, returning the view to its original unfiltered state.