Add test_ecx with basic tests for ED25519 and ED448, fix a bug in public key capture

Author: padelsbach

src/wp_ecx_kmgmt.c

@@ -1508,6 +1508,10 @@ static int wp_ed25519_export_public(ed25519_key* key, const byte* out,
 
     if (!key->pubKeySet) {
         ret = wc_ed25519_make_public(key, (byte*)out, *outLen);
+        if (ret == 0) {
+            /* Store the generated public key in the key object for future use. */
+            ret = wc_ed25519_import_public((byte*)out, *outLen, key);
+        }
     }
     else {
         ret = wc_ed25519_export_public(key, (byte*)out, outLen);
@@ -1638,6 +1642,10 @@ static int wp_ed448_export_public(ed448_key* key, const byte* out,
 
     if (!key->pubKeySet) {
         ret = wc_ed448_make_public(key, (byte*)out, *outLen);
+        if (ret == 0) {
+            /* Store the generated public key in the key object for future use. */
+            ret = wc_ed448_import_public((byte*)out, *outLen, key);
+        }
     }
     else {
         ret = wc_ed448_export_public(key, (byte*)out, outLen);

test/include.am

@@ -18,6 +18,7 @@ test_unit_test_SOURCES = \
 	test/test_dh.c \
 	test/test_digest.c \
 	test/test_ecc.c \
+	test/test_ecx.c \
 	test/test_gmac.c \
 	test/test_hkdf.c \
 	test/test_hmac.c \