FIPS 197 specifies the algorithm known as which encryption standard?

Enhance your preparation for the Federal IT Security Professional Test. Use quizzes, flashcards, and detailed explanations to ensure success. Stay ahead in the field of IT Security!

Multiple Choice

FIPS 197 specifies the algorithm known as which encryption standard?

Explanation:
FIPS 197 designates the Advanced Encryption Standard as the federal standard for symmetric encryption. This means it specifies AES as the approved algorithm for protecting data. AES uses the Rijndael cipher with a 128-bit block size and supports key lengths of 128, 192, or 256 bits, outlining how the cipher operates through multiple rounds (10, 12, or 14 rounds depending on the key length) and the exact sequence of steps in each round (SubBytes, ShiftRows, MixColumns, and AddRoundKey, with a final round that omits MixColumns). It also covers key expansion and the modes of operation to use in practice. RSA belongs to public-key cryptography, not the AES family. DES is an older 56-bit key symmetric cipher that has been largely retired due to security concerns, and 3DES applies DES three times but is compatibility-focused and slower. FIPS 197 chose AES for its strong security, efficiency, and suitability for modern workloads, making AES the specified standard.

FIPS 197 designates the Advanced Encryption Standard as the federal standard for symmetric encryption. This means it specifies AES as the approved algorithm for protecting data. AES uses the Rijndael cipher with a 128-bit block size and supports key lengths of 128, 192, or 256 bits, outlining how the cipher operates through multiple rounds (10, 12, or 14 rounds depending on the key length) and the exact sequence of steps in each round (SubBytes, ShiftRows, MixColumns, and AddRoundKey, with a final round that omits MixColumns). It also covers key expansion and the modes of operation to use in practice.

RSA belongs to public-key cryptography, not the AES family. DES is an older 56-bit key symmetric cipher that has been largely retired due to security concerns, and 3DES applies DES three times but is compatibility-focused and slower. FIPS 197 chose AES for its strong security, efficiency, and suitability for modern workloads, making AES the specified standard.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy