{
  "node_id": "fips-197-advanced-encryption-standard",
  "title": "Advanced Encryption Standard (AES)",
  "domain": "Cybersecurity",
  "version": "1.0.0",
  "last_updated": "2023-05-09",
  "bluf": "The Advanced Encryption Standard (AES) specifies a FIPS-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) digital information. The standard specifies three members of the Rijndael family: AES-128, AES-192, and AES-256. Each transforms data in blocks of 128 bits, and the numerical suffix indicates the bit length of the associated cryptographic keys. The algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits.\n\nThis standard applies to information systems used or operated by federal agencies, a contractor of an agency, or other organization on behalf of an agency, but not to national security systems. It may be used by federal agencies to protect information when they have determined that encryption is appropriate. The algorithm specified in this Standard may be implemented in software, firmware, hardware, or any combination thereof and shall be used in conjunction with a FIPS-approved or NIST-recommended mode of operation. This standard may also be adopted and used by non-Federal Government organizations.",
  "paywall": {
    "status": "LOCKED",
    "unlock_cost_usd": "0.01",
    "skyfire_id": "41779894-ece2-4163-9761-b3b1b76e19b0"
  },
  "crosswalks": {
    "_available_keys": [
      "nist_framework",
      "iso_standard",
      "ai_overlay_2026",
      "industry_mapping"
    ],
    "_note": "Full crosswalk values included in vault response"
  },
  "dependencies": [
    "fips-140-3-cryptographic-modules",
    "fips-199-security-categorization",
    "fips-200-minimum-security-requirements",
    "nist-sp-800-53-r5",
    "nist-sp-800-57-key-management",
    "nist-sp-800-131a-rev-2-crypto-transitions"
  ],
  "primary_citations_count": 8
}