add trust anchors to example

examples/EthernetMQTT/certificates.h

@@ -0,0 +1,46 @@
+#ifndef _CERTIFICATES_H_
+#define _CERTIFICATES_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* You will need to generate the information in this file manually
+ * using pycert_bearssl. For more information, please see
+ * https://github.com/OPEnSLab-OSU/SSLClient/blob/master/TrustAnchors.md
+ */
+
+#define TAs_NUM 1
+
+static const unsigned char TA_DN0[] = {
+    // FIXME
+};
+
+static const unsigned char TA_RSA_N0[] = {
+    // FIXME
+};
+
+static const unsigned char TA_RSA_E0[] = {
+    // FIXME
+};
+
+static const br_x509_trust_anchor TAs[] = {
+    {
+        { (unsigned char *)TA_DN0, sizeof TA_DN0 },
+        BR_X509_TA_CA,
+        {
+            BR_KEYTYPE_RSA,
+            { .rsa = {
+                (unsigned char *)TA_RSA_N0, sizeof TA_RSA_N0,
+                (unsigned char *)TA_RSA_E0, sizeof TA_RSA_E0,
+            } }
+        }
+    },
+};
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* ifndef _CERTIFICATES_H_ */