gdsa: Fix the conversion of hashes to integers to conform to the spec.

[u/mdw/catacomb] / dsa-verify.c

diff --git a/dsa-verify.c b/dsa-verify.c
index ec40b27..90895b4 100644 (file)
--- a/dsa-verify.c
+++ b/dsa-verify.c
@@ -119,7 +119,7 @@ int dsa_verify(const dsa_param *dp, mp *y,
               const void *r, size_t rsz,
               const void *s, size_t ssz)
 {
-  mp *mm = mp_loadb(MP_NEW, m, msz);
+  mp *mm = dsa_h2n(MP_NEW, dp->q, m, msz);
   mp *rm = mp_loadb(MP_NEW, r, rsz);
   mp *sm = mp_loadb(MP_NEW, s, ssz);
   int ok = dsa_vrfy(dp, y, mm, rm, sm);