Merge pull request #69 from anhu/deprecated_noe

Mention SABER and NTRU deprecated.

Author: dgarske

wolfSSL/src/appendix07.md

@@ -32,6 +32,9 @@ These use different kinds of math from the conventional algorithms. They are des
 * FALCON Signature Scheme
 * KYBER KEM
 
+**Note**: SABER KEM and NTRU KEM were deprecated and removed as they did not
+          move on to standardization.
+
 An explanation of lattice-based cryptography would fall outside the scope of this document but more information about these algorithms can be found in their NIST submissions at <https://csrc.nist.gov/projects/post-quantum-cryptography/round-3-submissions>.
 
 Unfortunately, it might come as a shock, but we do not actually know that these algorithms will resist attacks from quantum computers. In fact, we do not even know that these algorithms are safe against a conventional computer. Its getting less and less likely, but someone could break lattice-based cryptography. However, as security experts will tell you, this is how cryptography has always worked. Algorithms are good when we start using them, but weaknesses and vulnerabilities are discovered and technology gets better. The post-quantum algorithms are somewhat problematic in that they are relatively new and could use a bit more attention from the community.