use a more interesting test case

diff --git a/crypto/ec/ectest.c b/crypto/ec/ectest.c
index 1d0b337b45f51c934664751a4c11eed9f7bb121d..b6ede1c3c6ab004a3e25bff4c480e62b48a0537e 100644 (file)
--- a/crypto/ec/ectest.c
+++ b/crypto/ec/ectest.c
@@ -564,10 +564,10 @@ int main(int argc, char *argv[])
                fflush(stdout);
 
                if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0)) ABORT;
-               if (!BN_copy(z, y)) ABORT;
+               if (!BN_add(z, z, y)) ABORT;
                z->neg = 1;
                scalars[0] = y;
-               scalars[1] = z; /* z = -y */
+               scalars[1] = z; /* z = -(order + y) */
 
                if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx)) ABORT;
                if (!EC_POINT_is_at_infinity(group, P)) ABORT;