From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 17 Apr 2017 23:03:01 +0000 (+0100)
Subject: progs/cc-sig.c: Initialize hash context properly for RSA-PSS.
X-Git-Tag: 2.4.0~52
X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/commitdiff_plain/8acb0587f553eee7783756ce451839e3542dd425

progs/cc-sig.c: Initialize hash context properly for RSA-PSS.

Somehow this seemed to work anyway on my machine; but valgrind agrees
that it was wrong.
---

diff --git a/progs/cc-sig.c b/progs/cc-sig.c
index bbc23008..14f5e108 100644
--- a/progs/cc-sig.c
+++ b/progs/cc-sig.c
@@ -182,6 +182,7 @@ static sig *rsapss_siginit(key *k, void *kd, const gchash *hc)
 {
   rsapss_sigctx *rs = CREATE(rsapss_sigctx);
   rsa_privcreate(&rs->rp, kd, &rand_global);
+  rs->s.h = 0;
   rs->p.r = &rand_global;
   rs->p.cc = getmgf(k, hc);
   rs->p.ch = hc;
@@ -232,6 +233,7 @@ static sig *rsapss_vrfinit(key *k, void *kd, const gchash *hc)
 {
   rsapss_vrfctx *rv = CREATE(rsapss_vrfctx);
   rsa_pubcreate(&rv->rp, kd);
+  rv->s.h = 0;
   rv->p.r = &rand_global;
   rv->p.cc = getmgf(k, hc);
   rv->p.ch = hc;