- {
- int ok = 0;
- BN_CTX *ctx = NULL;
- BIGNUM *priv_key = NULL, *order = NULL;
- EC_POINT *pub_key = NULL;
-
- if (!eckey || !eckey->group)
- {
- ECerr(EC_F_EC_KEY_GENERATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
-
- if ((order = BN_new()) == NULL) goto err;
- if ((ctx = BN_CTX_new()) == NULL) goto err;
-
- if (eckey->priv_key == NULL)
- {
- priv_key = BN_new();
- if (priv_key == NULL)
- goto err;
- }
- else
- priv_key = eckey->priv_key;
-
- if (!EC_GROUP_get_order(eckey->group, order, ctx))
- goto err;
-
- do
- if (!BN_rand_range(priv_key, order))
- goto err;
- while (BN_is_zero(priv_key));
-
- if (eckey->pub_key == NULL)
- {
- pub_key = EC_POINT_new(eckey->group);
- if (pub_key == NULL)
- goto err;
- }
- else
- pub_key = eckey->pub_key;
-
- if (!EC_POINT_mul(eckey->group, pub_key, priv_key, NULL, NULL, ctx))
- goto err;
-
- eckey->priv_key = priv_key;
- eckey->pub_key = pub_key;
-
-#ifdef OPENSSL_FIPS
- if (fips_ec_pairwise_fail)
- BN_add_word(eckey->priv_key, 1);
- if(!fips_check_ec(eckey))
- {
- eckey->priv_key = NULL;
- eckey->pub_key = NULL;
- goto err;
- }
+{
+ if (eckey == NULL || eckey->group == NULL) {
+ ECerr(EC_F_EC_KEY_GENERATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if (eckey->meth->keygen != NULL)
+ return eckey->meth->keygen(eckey);
+ ECerr(EC_F_EC_KEY_GENERATE_KEY, EC_R_OPERATION_NOT_SUPPORTED);
+ return 0;
+}
+
+int ossl_ec_key_gen(EC_KEY *eckey)
+{
+ return eckey->group->meth->keygen(eckey);
+}
+
+int ec_key_simple_generate_key(EC_KEY *eckey)
+{
+ int ok = 0;
+ BN_CTX *ctx = NULL;
+ BIGNUM *priv_key = NULL;
+ const BIGNUM *order = NULL;
+ EC_POINT *pub_key = NULL;
+
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+
+ if (eckey->priv_key == NULL) {
+ priv_key = BN_new();
+ if (priv_key == NULL)
+ goto err;
+ } else
+ priv_key = eckey->priv_key;
+
+ order = EC_GROUP_get0_order(eckey->group);
+ if (order == NULL)
+ goto err;
+
+ do
+ if (!BN_priv_rand_range(priv_key, order))
+ goto err;
+ while (BN_is_zero(priv_key)) ;
+
+ if (eckey->pub_key == NULL) {
+ pub_key = EC_POINT_new(eckey->group);
+ if (pub_key == NULL)
+ goto err;
+ } else
+ pub_key = eckey->pub_key;
+
+ if (!EC_POINT_mul(eckey->group, pub_key, priv_key, NULL, NULL, ctx))
+ goto err;
+
+ eckey->priv_key = priv_key;
+ eckey->pub_key = pub_key;
+
+ ok = 1;
+
+ err:
+ if (eckey->pub_key == NULL)
+ EC_POINT_free(pub_key);
+ if (eckey->priv_key != priv_key)
+ BN_free(priv_key);
+ BN_CTX_free(ctx);
+ return ok;
+}
+
+int ec_key_simple_generate_public_key(EC_KEY *eckey)
+{
+ return EC_POINT_mul(eckey->group, eckey->pub_key, eckey->priv_key, NULL,
+ NULL, NULL);
+}
+
+int EC_KEY_check_key(const EC_KEY *eckey)
+{
+ if (eckey == NULL || eckey->group == NULL || eckey->pub_key == NULL) {
+ ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (eckey->group->meth->keycheck == NULL) {
+ ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+
+ return eckey->group->meth->keycheck(eckey);
+}
+
+int ec_key_simple_check_key(const EC_KEY *eckey)
+{
+ int ok = 0;
+ BN_CTX *ctx = NULL;
+ const BIGNUM *order = NULL;
+ EC_POINT *point = NULL;
+
+ if (eckey == NULL || eckey->group == NULL || eckey->pub_key == NULL) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (EC_POINT_is_at_infinity(eckey->group, eckey->pub_key)) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_POINT_AT_INFINITY);
+ goto err;
+ }
+
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+ if ((point = EC_POINT_new(eckey->group)) == NULL)
+ goto err;
+
+ /* testing whether the pub_key is on the elliptic curve */
+ if (EC_POINT_is_on_curve(eckey->group, eckey->pub_key, ctx) <= 0) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_POINT_IS_NOT_ON_CURVE);
+ goto err;
+ }
+ /* testing whether pub_key * order is the point at infinity */
+ order = eckey->group->order;
+ if (BN_is_zero(order)) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_INVALID_GROUP_ORDER);
+ goto err;
+ }
+ if (!EC_POINT_mul(eckey->group, point, NULL, eckey->pub_key, order, ctx)) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, ERR_R_EC_LIB);
+ goto err;
+ }
+ if (!EC_POINT_is_at_infinity(eckey->group, point)) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_WRONG_ORDER);
+ goto err;
+ }
+ /*
+ * in case the priv_key is present : check if generator * priv_key ==
+ * pub_key
+ */
+ if (eckey->priv_key != NULL) {
+ if (BN_cmp(eckey->priv_key, order) >= 0) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_WRONG_ORDER);
+ goto err;
+ }
+ if (!EC_POINT_mul(eckey->group, point, eckey->priv_key,
+ NULL, NULL, ctx)) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, ERR_R_EC_LIB);
+ goto err;
+ }
+ if (EC_POINT_cmp(eckey->group, point, eckey->pub_key, ctx) != 0) {
+ ECerr(EC_F_EC_KEY_SIMPLE_CHECK_KEY, EC_R_INVALID_PRIVATE_KEY);
+ goto err;
+ }
+ }
+ ok = 1;
+ err:
+ BN_CTX_free(ctx);
+ EC_POINT_free(point);
+ return ok;
+}
+
+int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x,
+ BIGNUM *y)
+{
+ BN_CTX *ctx = NULL;
+ BIGNUM *tx, *ty;
+ EC_POINT *point = NULL;
+ int ok = 0;
+#ifndef OPENSSL_NO_EC2M
+ int tmp_nid, is_char_two = 0;