Which standard defines the hash function families including SHA-256 and SHA-512?

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Study for the WGU ITAS 2142 D830 Introduction to Cryptography Exam. Review flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

Which standard defines the hash function families including SHA-256 and SHA-512?

Explanation:
The hash function families including SHA-256 and SHA-512 are defined in the Secure Hash Standard, FIPS 180-4. This publication specifies the SHA-2 family, explaining how these hash functions operate and their output sizes (SHA-256 yields 256-bit digests, SHA-512 yields 512-bit digests), which are used for data integrity, digital signatures, and other cryptographic purposes. The other options refer to different standards: FIPS 197 defines the Advanced Encryption Standard (AES); NIST SP 800-56 covers key agreement and related topics; IEEE 802.3 is the Ethernet networking standard. Note that SHA-3 is defined in a separate standard, FIPS 202.

The hash function families including SHA-256 and SHA-512 are defined in the Secure Hash Standard, FIPS 180-4. This publication specifies the SHA-2 family, explaining how these hash functions operate and their output sizes (SHA-256 yields 256-bit digests, SHA-512 yields 512-bit digests), which are used for data integrity, digital signatures, and other cryptographic purposes. The other options refer to different standards: FIPS 197 defines the Advanced Encryption Standard (AES); NIST SP 800-56 covers key agreement and related topics; IEEE 802.3 is the Ethernet networking standard. Note that SHA-3 is defined in a separate standard, FIPS 202.

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