1 files changed, 0 insertions, 133 deletions
diff --git a/lib/nettle/gost/ecc-gostdsa-verify.c b/lib/nettle/gost/ecc-gostdsa-verify.c
deleted file mode 100644
index 7b7e14af0f..0000000000
--- a/lib/nettle/gost/ecc-gostdsa-verify.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* ecc-gostdsa-verify.c
-
-   Copyright (C) 2015 Dmitry Eremin-Solenikov
-   Copyright (C) 2013, 2014 Niels Möller
-
-   This file is part of GNU Nettle.
-
-   GNU Nettle is free software: you can redistribute it and/or
-   modify it under the terms of either:
-
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at your
-       option) any later version.
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at your
-       option) any later version.
-
-   or both in parallel, as here.
-
-   GNU Nettle is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received copies of the GNU General Public License and
-   the GNU Lesser General Public License along with this program.  If
-   not, see https://www.gnu.org/licenses/.
-*/
-
-/* Development of Nettle's ECC support was funded by the .SE Internet Fund. */
-
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <gnutls_int.h>
-
-#include <stdlib.h>
-
-#include "gostdsa.h"
-#include "ecc-internal.h"
-
-/* Low-level GOST DSA verify */
-
-static int
-ecdsa_in_range (const struct ecc_curve *ecc, const mp_limb_t *xp)
-{
-  return !mpn_zero_p (xp, ecc->p.size)
-    && mpn_cmp (xp, ecc->q.m, ecc->p.size) < 0;
-}
-
-mp_size_t
-ecc_gostdsa_verify_itch (const struct ecc_curve *ecc)
-{
-  /* Largest storage need is for the ecc->mul call. */
-  return 5*ecc->p.size + ecc->mul_itch;
-}
-
-/* FIXME: Use faster primitives, not requiring side-channel silence. */
-int
-ecc_gostdsa_verify (const struct ecc_curve *ecc,
-		  const mp_limb_t *pp, /* Public key */
-		  size_t length, const uint8_t *digest,
-		  const mp_limb_t *rp, const mp_limb_t *sp,
-		  mp_limb_t *scratch)
-{
-  /* Procedure, according to GOST R 34.10. q denotes the group
-     order.
-
-     1. Check 0 < r, s < q.
-
-     2. v <-- h^{-1}  (mod q)
-
-     3. z1  <-- s * v (mod q)
-
-     4. z2  <-- -r * v (mod q)
-
-     5. R = u1 G + u2 Y
-
-     6. Signature is valid if R_x = r (mod q).
-  */
-
-#define hp (scratch)
-#define vp (scratch + ecc->p.size)
-#define z1 (scratch + 3*ecc->p.size)
-#define z2 (scratch + 4*ecc->p.size)
-
-#define P1 (scratch + 4*ecc->p.size)
-#define P2 (scratch)
-
-
-  if (! (ecdsa_in_range (ecc, rp)
-	 && ecdsa_in_range (ecc, sp)))
-    return 0;
-
-  gost_hash (&ecc->q, hp, length, digest);
-
-  if (mpn_zero_p (hp, ecc->p.size))
-    mpn_add_1 (hp, hp, ecc->p.size, 1);
-
-  /* Compute v */
-  ecc->q.invert (&ecc->q, vp, hp, vp + 2*ecc->p.size);
-
-  /* z1 = s / h, P1 = z1 * G */
-  ecc_modq_mul (ecc, z1, sp, vp);
-
-  /* z2 = - r / h, P2 = z2 * Y */
-  ecc_modq_mul (ecc, z2, rp, vp);
-  mpn_sub_n (z2, ecc->q.m, z2, ecc->p.size);
-
-   /* Total storage: 5*ecc->p.size + ecc->mul_itch */
-  ecc->mul (ecc, P2, z2, pp, z2 + ecc->p.size);
-
-  /* Total storage: 7*ecc->p.size + ecc->mul_g_itch (ecc->p.size) */
-  ecc->mul_g (ecc, P1, z1, P1 + 3*ecc->p.size);
-
-  /* Total storage: 6*ecc->p.size + ecc->add_hhh_itch */
-  ecc->add_hhh (ecc, P1, P1, P2, P1 + 3*ecc->p.size);
-
-  /* x coordinate only, modulo q */
-  ecc->h_to_a (ecc, 2, P2, P1, P1 + 3*ecc->p.size);
-
-  return (mpn_cmp (rp, P2, ecc->p.size) == 0);
-#undef P2
-#undef P1
-#undef z2
-#undef z1
-#undef hp
-#undef vp
-}