Do not attempt to run integrity-only OpenSSL interop tests with OpenSSL < 3.4

Author: holtrop-wolfssl

scripts/openssl.test

@@ -1164,6 +1164,17 @@ do
                     continue
                 fi
 
+                # Integrity-only cipher suites require OpenSSL 3.4 or later
+                $OPENSSL version | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 | \
+                    awk -F. '{if ($1 > 3 || ($1 == 3 && $2 >= 4)) exit 1; else exit 0;}'
+                if [ $? -eq 0 ]
+                then
+                    echo -e "OpenSSL version too old for integrity-only ciphers, skipping"
+                    tls13_cipher=
+                    tls13_integrity_only=
+                    continue
+                fi
+
                 # Test with RSA certs if available
                 if [ $openssl_pid != $no_pid -a "$wolf_rsa" != "" ]
                 then