crypto/ec/ecp_mont.c

114 int ec_GFp_mont_group_init(EC_GROUP *group)
118     ok = ec_GFp_simple_group_init(group);
119     group->field_data1 = NULL;
120     group->field_data2 = NULL;
124 void ec_GFp_mont_group_finish(EC_GROUP *group)
126     if (group->field_data1 != NULL) {
127         BN_MONT_CTX_free(group->field_data1);
128         group->field_data1 = NULL;
130     if (group->field_data2 != NULL) {
131         BN_free(group->field_data2);
132         group->field_data2 = NULL;
134     ec_GFp_simple_group_finish(group);
137 void ec_GFp_mont_group_clear_finish(EC_GROUP *group)
139     if (group->field_data1 != NULL) {
140         BN_MONT_CTX_free(group->field_data1);
141         group->field_data1 = NULL;
143     if (group->field_data2 != NULL) {
144         BN_clear_free(group->field_data2);
145         group->field_data2 = NULL;
147     ec_GFp_simple_group_clear_finish(group);
187 int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,
195     if (group->field_data1 != NULL) {
196         BN_MONT_CTX_free(group->field_data1);
197         group->field_data1 = NULL;
199     if (group->field_data2 != NULL) {
200         BN_free(group->field_data2);
201         group->field_data2 = NULL;
223     group->field_data1 = mont;
225     group->field_data2 = one;
228     ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx);
231         BN_MONT_CTX_free(group->field_data1);
232         group->field_data1 = NULL;
233         BN_free(group->field_data2);
234         group->field_data2 = NULL;
245 int ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
248     if (group->field_data1 == NULL) {
253     return BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx);
256 int ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
259     if (group->field_data1 == NULL) {
264     return BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx);
267 int ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r,
270     if (group->field_data1 == NULL) {
275     return BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx);
278 int ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r,
281     if (group->field_data1 == NULL) {
286     return BN_from_montgomery(r, a, group->field_data1, ctx);
289 int ec_GFp_mont_field_set_to_one(const EC_GROUP *group, BIGNUM *r,
292     if (group->field_data2 == NULL) {
297     if (!BN_copy(r, group->field_data2))