X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/01f3ef938fe2a53bb09e59b7baa81c06b3401002..bd6d65e32b835551677456bf286d09ced6859882:/pub/bbs-gen.c

diff --git a/pub/bbs-gen.c b/pub/bbs-gen.c
index d2b4b6e5..6ec65e2d 100644
--- a/pub/bbs-gen.c
+++ b/pub/bbs-gen.c
@@ -98,11 +98,14 @@ int bbs_gen(bbs_priv *bp, unsigned nbits, grand *r, unsigned n,
   /* --- Compute @n@ --- */
 
   bp->n = mp_mul(MP_NEW, bp->p, bp->q);
+  if (mp_bits(bp->n) != nbits) goto fail_n;
   mp_drop(x);
   return (PGEN_DONE);
 
   /* --- Tidy up if things went wrong --- */
 
+fail_n:
+  mp_drop(bp->n);
 fail_q:
   mp_drop(bp->p);
 fail_p: