From 9804526dca774c21f617b3b13d431826e3c7a685 Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Fri, 28 Dec 2018 14:52:24 +0200
Subject: [PATCH] small fix for unsigned int

---
 client/emv/emv_roca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client/emv/emv_roca.c b/client/emv/emv_roca.c
index 2843cb2c1..48845c99f 100644
--- a/client/emv/emv_roca.c
+++ b/client/emv/emv_roca.c
@@ -66,7 +66,7 @@ int bitand_is_zero(	mbedtls_mpi* a, mbedtls_mpi* b ) {
 
 mbedtls_mpi_uint mpi_get_uint(const mbedtls_mpi *X) {
 	
-	if (X->n == 1) {
+	if (X->n == 1 && X->s > 0) {
 		return X->p[0];
 	}