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    Function makeKeyedHash

    • 05-3474-23 R23.1, Annex B.1.4 (Keyed hash for message authentication)

      SPEC COMPLIANCE NOTES:

      • ✅ Implements HMAC-like construction using AES-128-MMO with specified ipad/opad constants
      • ✅ Supports arbitrary input byte per Trust Center transport/load key derivation rules
      • ⚠️ Requires 16-byte key input; caller must validate length upstream DEVICE SCOPE: Trust Center and devices deriving transport/load keys

      Parameters

      • key: Buffer
      • inputByte: number

      Returns Buffer

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