Update for changes to RDF library

rsa_signature_2017.c

@@ -27,7 +27,7 @@ struct rdf_enum types = {
 	.filter = type_filter,
 };
 
-struct rdf_serialize_field ap_object_rdf[];
+extern struct rdf_serialize_field ap_object_rdf[];
 
 static struct rdf_serialize_field activity_ref_types[] = {
 	{
@@ -41,7 +41,7 @@ static struct rdf_serialize_field activity_ref_types[] = {
 		.type = &rdf_object_field,
 		.subtype = &ap_object_rdf
 	},
-	{ NULL },
+	{ .predicate = {0} },
 };
 
 #define OBJ_TYPE struct ap_object
@@ -172,7 +172,7 @@ static char* serialize_normalized_object( struct rdf_serialize_field* layout, vo
 	return outbuf;
 }
 
-static bool calculate_hash_for_object( struct rdf_serialize_field* layout, void* object, char* hash )
+static bool calculate_hash_for_object( struct rdf_serialize_field* layout, void* object, unsigned char* hash )
 {
 	size_t size = 0;
 
@@ -201,14 +201,13 @@ static bool calculate_hash_for_object( struct rdf_serialize_field* layout, void*
 
 bool ap_activity_create_rsa_signature_2017( struct ap_object* act, struct crypto_keys* keys )
 {
-	char* signature_buf = NULL;
-	printf( "ap_activity_create_rsa_signature_2017\n" );
+	//printf( "ap_activity_create_rsa_signature_2017\n" );
 
 	// Setup signature
 	asprintf( &act->signature.creator, "%s#main-key", act->actor );
 	act->signature.created = time(NULL);
 
-	char raw_hash[64];
+	unsigned char raw_hash[64];
 	if( !calculate_hash_for_object( ap_object_rdf, act, &raw_hash[0] ) ) { return NULL; }
 	if( !calculate_hash_for_object( ap_signature_rdf, &act->signature, &raw_hash[32] ) ) { return NULL; }