* contributed to the OpenSSL project.
*/
+#define OPENSSL_FIPSAPI
+
#include <string.h>
#include "ec_lcl.h"
#include <openssl/err.h>
}
ret->version = 1;
+ ret->flags = 0;
ret->group = NULL;
ret->pub_key = NULL;
ret->priv_key= NULL;
dest->enc_flag = src->enc_flag;
dest->conv_form = src->conv_form;
dest->version = src->version;
+ dest->flags = src->flags;
return dest;
}
return ((i > 1) ? 1 : 0);
}
+#ifdef OPENSSL_FIPS
+
+#include <openssl/evp.h>
+#include <openssl/fips.h>
+#include <openssl/fips_rand.h>
+
+static int fips_check_ec(EC_KEY *key)
+ {
+ EVP_PKEY pk;
+ unsigned char tbs[] = "ECDSA Pairwise Check Data";
+ pk.type = EVP_PKEY_EC;
+ pk.pkey.ec = key;
+
+ if (!fips_pkey_signature_test(FIPS_TEST_PAIRWISE,
+ &pk, tbs, 0, NULL, 0, NULL, 0, NULL))
+ {
+ FIPSerr(FIPS_F_FIPS_CHECK_EC,FIPS_R_PAIRWISE_TEST_FAILED);
+ fips_set_selftest_fail();
+ return 0;
+ }
+ return 1;
+ }
+
+int fips_check_ec_prng(EC_KEY *ec)
+ {
+ int bits, strength;
+ if (!FIPS_module_mode())
+ return 1;
+
+ if (ec->flags & (EC_FLAG_NON_FIPS_ALLOW|EC_FLAG_FIPS_CHECKED))
+ return 1;
+
+ if (!ec->group)
+ return 1;
+
+ bits = BN_num_bits(&ec->group->order);
+
+ if (bits < 160)
+ {
+ FIPSerr(FIPS_F_FIPS_CHECK_EC_PRNG,FIPS_R_KEY_TOO_SHORT);
+ return 0;
+ }
+ /* Comparable algorithm strengths: from SP800-57 table 2 */
+ if (bits >= 512)
+ strength = 256;
+ else if (bits >= 384)
+ strength = 192;
+ else if (bits >= 256)
+ strength = 128;
+ else if (bits >= 224)
+ strength = 112;
+ else
+ strength = 80;
+
+
+ if (FIPS_rand_strength() >= strength)
+ return 1;
+
+ FIPSerr(FIPS_F_FIPS_CHECK_EC_PRNG,FIPS_R_PRNG_STRENGTH_TOO_LOW);
+ return 0;
+
+ }
+
+#endif
+
int EC_KEY_generate_key(EC_KEY *eckey)
{
int ok = 0;
BIGNUM *priv_key = NULL, *order = NULL;
EC_POINT *pub_key = NULL;
+#ifdef OPENSSL_FIPS
+ if(FIPS_selftest_failed())
+ {
+ FIPSerr(FIPS_F_EC_KEY_GENERATE_KEY,FIPS_R_FIPS_SELFTEST_FAILED);
+ return 0;
+ }
+#endif
+
if (!eckey || !eckey->group)
{
ECerr(EC_F_EC_KEY_GENERATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
if (!EC_GROUP_get_order(eckey->group, order, ctx))
goto err;
+#ifdef OPENSSL_FIPS
+ if (!fips_check_ec_prng(eckey))
+ goto err;
+#endif
+
do
if (!BN_rand_range(priv_key, order))
goto err;
eckey->priv_key = priv_key;
eckey->pub_key = pub_key;
+#ifdef OPENSSL_FIPS
+ if(!fips_check_ec(eckey))
+ {
+ eckey->priv_key = NULL;
+ eckey->pub_key = NULL;
+ goto err;
+ }
+#endif
+
ok=1;
err:
ECerr(EC_F_EC_KEY_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_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)
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, tmp_nid, is_char_two = 0;
+
+ if (!key || !key->group || !x || !y)
+ {
+ ECerr(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES,
+ ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ ctx = BN_CTX_new();
+ if (!ctx)
+ goto err;
+
+ point = EC_POINT_new(key->group);
+
+ if (!point)
+ goto err;
+
+ tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(key->group));
+
+ if (tmp_nid == NID_X9_62_characteristic_two_field)
+ is_char_two = 1;
+
+ tx = BN_CTX_get(ctx);
+ ty = BN_CTX_get(ctx);
+#ifndef OPENSSL_NO_EC2M
+ if (is_char_two)
+ {
+ if (!EC_POINT_set_affine_coordinates_GF2m(key->group, point,
+ x, y, ctx))
+ goto err;
+ if (!EC_POINT_get_affine_coordinates_GF2m(key->group, point,
+ tx, ty, ctx))
+ goto err;
+ }
+ else
+#endif
+ {
+ if (!EC_POINT_set_affine_coordinates_GFp(key->group, point,
+ x, y, ctx))
+ goto err;
+ if (!EC_POINT_get_affine_coordinates_GFp(key->group, point,
+ tx, ty, ctx))
+ goto err;
+ }
+ /* Check if retrieved coordinates match originals and are less than
+ * field order: if not values are out of range.
+ */
+ if (BN_cmp(x, tx) || BN_cmp(y, ty)
+ || (BN_cmp(x, &key->group->field) >= 0)
+ || (BN_cmp(y, &key->group->field) >= 0))
+ {
+ ECerr(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES,
+ EC_R_COORDINATES_OUT_OF_RANGE);
+ goto err;
+ }
+
+ if (!EC_KEY_set_public_key(key, point))
+ goto err;
+
+ if (EC_KEY_check_key(key) == 0)
+ goto err;
+
+ ok = 1;
+
+ err:
+ if (ctx)
+ BN_CTX_free(ctx);
+ if (point)
+ EC_POINT_free(point);
+ return ok;
+
+ }
+
const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key)
{
return key->group;
void *EC_KEY_get_key_method_data(EC_KEY *key,
void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *))
{
- return EC_EX_DATA_get_data(key->method_data, dup_func, free_func, clear_free_func);
+ void *ret;
+
+ CRYPTO_r_lock(CRYPTO_LOCK_EC);
+ ret = EC_EX_DATA_get_data(key->method_data, dup_func, free_func, clear_free_func);
+ CRYPTO_r_unlock(CRYPTO_LOCK_EC);
+
+ return ret;
}
-void EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
+void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *))
{
EC_EXTRA_DATA *ex_data;
+
CRYPTO_w_lock(CRYPTO_LOCK_EC);
ex_data = EC_EX_DATA_get_data(key->method_data, dup_func, free_func, clear_free_func);
if (ex_data == NULL)
EC_EX_DATA_set_data(&key->method_data, data, dup_func, free_func, clear_free_func);
CRYPTO_w_unlock(CRYPTO_LOCK_EC);
+
+ return ex_data;
}
void EC_KEY_set_asn1_flag(EC_KEY *key, int flag)
return 0;
return EC_GROUP_precompute_mult(key->group, ctx);
}
+
+int EC_KEY_get_flags(const EC_KEY *key)
+ {
+ return key->flags;
+ }
+
+void EC_KEY_set_flags(EC_KEY *key, int flags)
+ {
+ key->flags |= flags;
+ }
+
+void EC_KEY_clear_flags(EC_KEY *key, int flags)
+ {
+ key->flags &= ~flags;
+ }
projects / openssl.git / blobdiff