* Previous versions of TLS explicitly offered a null cipher (wherein
encryption consists of the identity operation, i.e., the data is not
encrypted). These modes have been deprecated in TLS 1.3.
These modes have been *removed* in TLS 1.3 Further, the only ciphers in the
RFC provide authenticated encryption. I think anything that doesn’t provide
that is going to get an “N” in the recommended column FWIW. I’m one of three
experts for that registry.
/r$
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