From d45beefc1434a112499f6a8be20c3e5dfe5249d0 Mon Sep 17 00:00:00 2001
From: Andrea Franz <andrea@gravityblast.com>
Date: Mon, 25 Oct 2021 17:07:24 +0200
Subject: [PATCH] add factoryReset method

---
 keycard_context.go | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/keycard_context.go b/keycard_context.go
index 5a37623..89156aa 100644
--- a/keycard_context.go
+++ b/keycard_context.go
@@ -9,6 +9,7 @@ import (
 	keycard "github.com/status-im/keycard-go"
 	"github.com/status-im/keycard-go/apdu"
 	"github.com/status-im/keycard-go/globalplatform"
+	"github.com/status-im/keycard-go/identifiers"
 	"github.com/status-im/keycard-go/io"
 	"github.com/status-im/keycard-go/types"
 	"golang.org/x/crypto/pbkdf2"
@@ -461,3 +462,34 @@ func (kc *keycardContext) changePairingPassword(pairingPassword string) error {
 
 	return nil
 }
+
+func (kc *keycardContext) factoryReset(pairingPassword string) error {
+	<-kc.connected
+	if kc.runErr != nil {
+		return kc.runErr
+	}
+
+	cmdSet := globalplatform.NewCommandSet(kc.c)
+	if err := cmdSet.OpenSecureChannel(); err != nil {
+		l("open secure channel failed", "error", err)
+		return err
+	}
+
+	aid, err := identifiers.KeycardInstanceAID(1)
+	if err != nil {
+		l("error getting keycard aid %+v", err)
+		return err
+	}
+
+	if err := cmdSet.DeleteObject(aid); err != nil {
+		l("error deleting keycard aid %+v", err)
+		return err
+	}
+
+	if err := cmdSet.InstallKeycardApplet(); err != nil {
+		l("error installing Keycard applet %+v", err)
+		return err
+	}
+
+	return nil
+}