@Deprecated // Use getNonceLength()
        public int getNn() {
            return getNonceLength();
        }
Returns the length in bytes of a nonce for this algorithm.

@return AEAD Nn
@see <a href="https://www.rfc-editor.org/rfc/rfc9180.html#name-authenticated-encryption-wi">
        AEAD ids</a>
common/src/main/java/org/conscrypt/HpkeSuite.java