From ec500a3ab615a7f733cec4f052a33bc841926da1 Mon Sep 17 00:00:00 2001
From: Andrea Franz <andrea@gravityblast.com>
Date: Thu, 4 Oct 2018 09:46:45 +0200
Subject: [PATCH] fix commands to work with both T=0 and T=1

---
 globalplatform/commands.go | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/globalplatform/commands.go b/globalplatform/commands.go
index a0e04c2..27403a4 100644
--- a/globalplatform/commands.go
+++ b/globalplatform/commands.go
@@ -45,19 +45,27 @@ func NewCommandSelect(aid []byte) *apdu.Command {
 		aid,
 	)
 
-	c.SetLe(0x00)
+	// with T=0 we can both set or not the Le value
+	// with T=1 it works only without Le
+	// c.SetLe(0x00)
 
 	return c
 }
 
 func NewCommandInitializeUpdate(challenge []byte) *apdu.Command {
-	return apdu.NewCommand(
+	c := apdu.NewCommand(
 		ClaGp,
 		InsInitializeUpdate,
 		uint8(0x00),
 		uint8(0x00),
 		challenge,
 	)
+
+	// with T=0 we can both set or not the Le value
+	// with T=1 it works only if Le is set
+	c.SetLe(0x00)
+
+	return c
 }
 
 func NewCommandExternalAuthenticate(encKey, cardChallenge, hostChallenge []byte) (*apdu.Command, error) {