Advanced Encryption Standard

nouncandidate·updated May 9, 2026

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The Advanced Encryption Standard specifies a U.S. government-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. This standard specifies the Rijndael algorithm, a symmetric block cipher that can process data blocks of 128 bits, using cipher keys with lengths of 128, 192, and 256 bits.

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Classifications

per-axis with provenance

Entity Type

Control85%llm-generatedllm:claude-haiku-4-5

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Sensitivity

Regulated80%llm-generatedllm:claude-haiku-4-5

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Information Class

unclassified

Variants

4 surface forms

acronym: AES
plural: Advanced Encryption Standards
possessive: Advanced Encryption Standard's
pluralpossessive: Advanced Encryption Standards'

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