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means that the use of the algorithm or key length is deprecated, and there are additional restrictions required to use the algorithm or key length for applying cryptographic protection to data (e.g., encrypting).
NIST SP 800-125B under Restricted
An authenticator type, class, or instantiation having additional risk of false acceptance associated with its use that is therefore subject to additional requirements.
NIST SP 800-63-3 under Restricted