late 1.72 update

Author: dghgit

CONTRIBUTORS.html

@@ -587,6 +587,7 @@
 <li>Le Karasique &lt;https://github.com/Karasiq&gt; Identification of non-performant unnecessary code in KeccakDigest.java.</li>
 <li>Matti Bickel &lt;https://github.com/wundrian&gt; canRead test fix for JcaPKIXIdentityBuilder.</li>
 <li>wodzu-dudis &lt;https://github.com/wodzu-dudis&gt; 1.5 compatibility fix for ProvX509KeyManagerSimple$Match.</li>
+<li>John Jiang &lt;[email protected]&gt; improvements to input validation in SM2Engine class.</li>
 <li>mgrafl &lt;https://github.com/mgrafl&gt; - JavaDoc fix for NISTObjectIdentifiers class.</li>
 <li>iiordanov &lt;https://github.com/iiordanov&gt; DH and ECDH anon cipher support for TLS.</li>
 <li>yf-zs &lt;https://github.com/yf-zs&gt; - Fix for CRL DP extension handling in CertPathValidatorUtilities.</li>