update go api

go/gmssl/pbkdf.go

@@ -0,0 +1,21 @@
+/* +build cgo */
+package gmssl
+
+/*
+#include <openssl/evp.h>
+*/
+import "C"
+
+import (
+	"errors"
+)
+
+func GetKeyDeriveFunctions(aliases bool) []string {
+	return []string{"PBKDF2v1", "PBKDFv2", "scrypt"}
+}
+
+func DeriveKeyFromPassword(scheme string, args map[string]string, password string, salt []byte) ([]byte, error) {
+	return nil, errors.New("Not implemented")
+}
+
+