From dbe932152d1bdb1ad05e9152284d5231bef3d8ed Mon Sep 17 00:00:00 2001
From: AdriaoNeves <adrineves@gmail.com>
Date: Tue, 26 Nov 2019 16:05:42 +0000
Subject: [PATCH] Fixing invalid signature with 3072 RSA bits in GemsafeV1

---
 src/libopensc/card-gemsafeV1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libopensc/card-gemsafeV1.c b/src/libopensc/card-gemsafeV1.c
index be6a47b3..82326be9 100644
--- a/src/libopensc/card-gemsafeV1.c
+++ b/src/libopensc/card-gemsafeV1.c
@@ -455,8 +455,8 @@ static int gemsafe_compute_signature(struct sc_card *card, const u8 * data,
 {
 	int r, len;
 	struct sc_apdu apdu;
-	u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
-	u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
+	u8 rbuf[SC_MAX_APDU_BUFFER_SIZE + 257];
+	u8 sbuf[SC_MAX_APDU_BUFFER_SIZE + 257];
 	sc_context_t *ctx = card->ctx;
 
 	SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);