3.1.4.5.5 Encrypting HomeGroup Credentials, Signing Key and MAC Address

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The <PASSWORD> element in the HomeGroup Credentials message and the <SIGNINGKEYS> element in the HomeGroup Signing Key message are encrypted using the Encryption Key (section 3.1.4.5.1) with the AES-256 algorithm [FIPS197] in Cipher Block Chaining mode [SP800-38A] with a zero Initialization Vector (IV).