From 7f302dab540f00759f1304ac52615e7d3d53a1c9 Mon Sep 17 00:00:00 2001
From: Steffen Jaeckel <s@jaeckel.eu>
Date: Mon, 2 Oct 2017 01:18:36 +0200
Subject: [PATCH] make sure size is valid

---
 src/pk/rsa/rsa_make_key.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pk/rsa/rsa_make_key.c b/src/pk/rsa/rsa_make_key.c
index 8ba6ab1..c5c4c28 100644
--- a/src/pk/rsa/rsa_make_key.c
+++ b/src/pk/rsa/rsa_make_key.c
@@ -31,6 +31,7 @@ int rsa_make_key(prng_state *prng, int wprng, int size, long e, rsa_key *key)
 
    LTC_ARGCHK(ltc_mp.name != NULL);
    LTC_ARGCHK(key         != NULL);
+   LTC_ARGCHK(size        > 0);
 
    if ((e < 3) || ((e & 1) == 0)) {
       return CRYPT_INVALID_ARG;