crypto/ec/ecp_mont.c

122 int ec_GFp_mont_group_init(EC_GROUP *group)
126     ok = ec_GFp_simple_group_init(group);
127     group->field_data1 = NULL;
128     group->field_data2 = NULL;
132 void ec_GFp_mont_group_finish(EC_GROUP *group)
134     if (group->field_data1 != NULL) {
135         BN_MONT_CTX_free(group->field_data1);
136         group->field_data1 = NULL;
138     if (group->field_data2 != NULL) {
139         BN_free(group->field_data2);
140         group->field_data2 = NULL;
142     ec_GFp_simple_group_finish(group);
145 void ec_GFp_mont_group_clear_finish(EC_GROUP *group)
147     if (group->field_data1 != NULL) {
148         BN_MONT_CTX_free(group->field_data1);
149         group->field_data1 = NULL;
151     if (group->field_data2 != NULL) {
152         BN_clear_free(group->field_data2);
153         group->field_data2 = NULL;
155     ec_GFp_simple_group_clear_finish(group);
195 int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,
203     if (group->field_data1 != NULL) {
204         BN_MONT_CTX_free(group->field_data1);
205         group->field_data1 = NULL;
207     if (group->field_data2 != NULL) {
208         BN_free(group->field_data2);
209         group->field_data2 = NULL;
231     group->field_data1 = mont;
233     group->field_data2 = one;
236     ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx);
239         BN_MONT_CTX_free(group->field_data1);
240         group->field_data1 = NULL;
241         BN_free(group->field_data2);
242         group->field_data2 = NULL;
255 int ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
258     if (group->field_data1 == NULL) {
263     return BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx);
266 int ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
269     if (group->field_data1 == NULL) {
274     return BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx);
277 int ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r,
280     if (group->field_data1 == NULL) {
285     return BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx);
288 int ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r,
291     if (group->field_data1 == NULL) {
296     return BN_from_montgomery(r, a, group->field_data1, ctx);
299 int ec_GFp_mont_field_set_to_one(const EC_GROUP *group, BIGNUM *r,
302     if (group->field_data2 == NULL) {
307     if (!BN_copy(r, group->field_data2))