diff --git a/seccure/aes256ctr.c b/seccure/aes256ctr.c
index 8c8fa92..86b82a4 100644
--- a/seccure/aes256ctr.c
+++ b/seccure/aes256ctr.c
@@ -84,14 +84,16 @@ void aes256ctr_enc(struct aes256ctr *ac, char *buf, int len)
 
   full_blocks = (len / CIPHER_BLOCK_SIZE) * CIPHER_BLOCK_SIZE;
   err = gcry_cipher_encrypt(ac->ch, buf, full_blocks, NULL, 0);
-  assert(! gcry_err_code(err));
+  if (gcry_err_code(err))
+    abort();
   len -= full_blocks;
   buf += full_blocks;
 
   if (len) {
     memset(ac->buf, 0, CIPHER_BLOCK_SIZE);
     err = gcry_cipher_encrypt(ac->ch, ac->buf, CIPHER_BLOCK_SIZE, NULL, 0);
-    assert(! gcry_err_code(err));
+    if (gcry_err_code(err))
+      abort();
     ac->idx = 0;
     
     for(; len && (ac->idx < CIPHER_BLOCK_SIZE); len--)
diff --git a/seccure/ecc.c b/seccure/ecc.c
index 5d1076c..982fb21 100644
--- a/seccure/ecc.c
+++ b/seccure/ecc.c
@@ -125,7 +125,8 @@ int point_decompress(struct affine_point *p, const gcry_mpi_t x, int yflag,
       else
 	gcry_mpi_sub(p->y, dp->m, y);
     rc = point_on_curve(p, dp);
-    assert(rc);
+    if (!rc)
+        abort();
     }
   gcry_mpi_release(h);
   gcry_mpi_release(y);
@@ -370,7 +371,8 @@ struct affine_point pointmul(const struct affine_point *p,
   R = jacobian_to_affine(&r, dp);
   jacobian_release(&r);
   rc = point_on_curve(&R, dp);
-  assert(rc);
+  if (!rc)
+    abort();
   return R;
 }