Commit 469c2c4a authored by Nicola Tuveri's avatar Nicola Tuveri Committed by Andy Polyakov
Browse files

Use ec_group_do_inverse_ord() in SM2 



Reviewed-by: default avatarAndy Polyakov <appro@openssl.org>
Reviewed-by: default avatarMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6521)
parent 5a212462

crypto/sm2/sm2_sign.c

+2 −1
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 


#include "internal/sm2.h"

#include "internal/sm2err.h"

#include "internal/ec_int.h" /* ec_group_do_inverse_ord() */

#include <openssl/err.h>

#include <openssl/evp.h>

#include <openssl/err.h>
@@ -133,7 +134,7 @@ static ECDSA_SIG *sm2_sig_gen(const EC_KEY *key, const BIGNUM *e) 
            continue;



        if (!BN_add(s, dA, BN_value_one())

                || !BN_mod_inverse(s, s, order, ctx)

                || !ec_group_do_inverse_ord(group, s, s, ctx)

                || !BN_mod_mul(tmp, dA, r, order, ctx)

                || !BN_sub(tmp, k, tmp)

                || !BN_mod_mul(s, s, tmp, order, ctx)) {