Add assembler code for the nist 256-bit GFp curve, written initially by

Intel. Obtained from BoringSSL, with some integration work borrowed from
OpenSSL 1.0.2; assembler code for arm and sparc64 borrowed from OpenSSL 1.1.0.

None of this code is enabled in libcrypto yet.

ok beck@ jsing@

1 files changed, 5 insertions, 1 deletions

diff --git a/src/lib/libcrypto/ec/ec_lcl.h b/src/lib/libcrypto/ec/ec_lcl.h
index faed33fe56..d11aaed8cb 100644
--- a/src/lib/libcrypto/ec/ec_lcl.h
+++ b/src/lib/libcrypto/ec/ec_lcl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lcl.h,v 1.5 2014/06/12 15:49:29 deraadt Exp $ */
+/* $OpenBSD: ec_lcl.h,v 1.6 2016/11/04 17:33:19 miod Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -423,6 +423,10 @@ int ec_GFp_nistp256_points_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM
 int ec_GFp_nistp256_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
 int ec_GFp_nistp256_have_precompute_mult(const EC_GROUP *group);
 
+#ifdef ECP_NISTZ256_ASM
+const EC_METHOD *EC_GFp_nistz256_method(void);
+#endif
+
 /* method functions in ecp_nistp521.c */
 int ec_GFp_nistp521_group_init(EC_GROUP *group);
 int ec_GFp_nistp521_group_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *n, BN_CTX *);