Which of the following types of cryptography defined by FIPS 185 describes a cryptographic algorithm or a tool accepted by the National Security Agency for protecting classified information?

The correct answer is D. Type I cryptography. Type I cryptography, as defined by FIPS 185, refers specifically to NSA-approved cryptographic algorithms or tools authorized to protect classified U.S. government information - making D the correct answer. Type II cryptography covers NSA-approved algorithms used to protect sensi

Security Planning and Design

Question

Options

AType III cryptography
BType III (E) cryptography
CType II cryptography
DType I cryptography

How the community answered

(16 responses)

A
6% (1)
D
94% (15)

Explanation

Type I cryptography, as defined by FIPS 185, refers specifically to NSA-approved cryptographic algorithms or tools authorized to protect classified U.S. government information - making D the correct answer. Type II cryptography covers NSA-approved algorithms used to protect sensitive but unclassified government data, not classified material. Type III cryptography refers to NIST-approved or otherwise endorsed algorithms used for unclassified civilian or commercial applications, and Type III (E) is simply a Type III algorithm that has been evaluated (the "E" suffix), still not reaching classified protection status.

Memory tip: Think of the Types as a hierarchy - the higher the classification need, the lower the type number. Type I = top tier = classified. "I" comes first, just like classified information has the highest priority in government security.

Topics

#Cryptography types#Type I cryptography#NSA#Classified information

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