New function curve25519_eh_to_x.

1 files changed, 5 insertions, 0 deletions

diff --git a/ecc-internal.h b/ecc-internal.h
index 3da3f240..f6f0cd1e 100644
--- a/ecc-internal.h
+++ b/ecc-internal.h
@@ -64,6 +64,7 @@
 #define sec_tabselect _nettle_sec_tabselect
 #define sec_modinv _nettle_sec_modinv
 #define ecc_25519_sqrt _nettle_ecc_25519_sqrt
+#define curve25519_eh_to_x _nettle_curve25519_eh_to_x
 
 #define ECC_MAX_SIZE ((521 + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS)
 
@@ -266,6 +267,10 @@ sec_modinv (mp_limb_t *vp, mp_limb_t *ap, mp_size_t n,
 int
 ecc_25519_sqrt(mp_limb_t *rp, const mp_limb_t *ap);
 
+void
+curve25519_eh_to_x (mp_limb_t *xp, const mp_limb_t *p,
+		    mp_limb_t *scratch);
+
 /* Current scratch needs: */
 #define ECC_MODINV_ITCH(size) (3*(size))
 #define ECC_J_TO_A_ITCH(size) (5*(size))