#include <openssl/err.h>
#include <openssl/obj_mac.h>
#include <openssl/bn.h>
+#include <openssl/rand.h>
static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dlen,
const BIGNUM *, const BIGNUM *, EC_KEY *eckey);
-static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
- BIGNUM **rp);
+static int ecdsa_sign_setup_no_digest(EC_KEY *eckey,
+ BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp);
+static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in,
+ BIGNUM **kinvp, BIGNUM **rp,
+ const unsigned char *dgst, int dlen);
static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey);
static ECDSA_METHOD openssl_ecdsa_meth = {
"OpenSSL ECDSA method",
ecdsa_do_sign,
- ecdsa_sign_setup,
+ ecdsa_sign_setup_no_digest,
ecdsa_do_verify,
#if 0
NULL, /* init */
NULL, /* finish */
#endif
- 0, /* flags */
+ ECDSA_FLAG_FIPS_METHOD, /* flags */
NULL /* app_data */
};
return &openssl_ecdsa_meth;
}
-static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
- BIGNUM **rp)
+static int ecdsa_sign_setup_no_digest(EC_KEY *eckey,
+ BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp) {
+ return ecdsa_sign_setup(eckey, ctx_in, kinvp, rp, NULL, 0);
+}
+
+static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in,
+ BIGNUM **kinvp, BIGNUM **rp,
+ const unsigned char *dgst, int dlen)
{
BN_CTX *ctx = NULL;
BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL;
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
+
+#ifdef OPENSSL_FIPS
+ if (!fips_check_ec_prng(eckey))
+ goto err;
+#endif
do
{
/* get random k */
do
- if (!BN_rand_range(k, order))
+#ifndef OPENSSL_NO_SHA512
+ if (dgst != NULL)
{
- ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
- ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
- goto err;
+ if (!BN_generate_dsa_nonce(k, order, EC_KEY_get0_private_key(eckey),
+ dgst, dlen, ctx))
+ {
+ ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
+ ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
+ goto err;
+ }
+ }
+ else
+#endif
+ {
+ if (!BN_rand_range(k, order))
+ {
+ ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
+ ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
+ goto err;
+ }
}
while (BN_is_zero(k));
+ /* We do not want timing information to leak the length of k,
+ * so we compute G*k using an equivalent scalar of fixed
+ * bit-length. */
+
+ if (!BN_add(k, k, order)) goto err;
+ if (BN_num_bits(k) <= BN_num_bits(order))
+ if (!BN_add(k, k, order)) goto err;
+
/* compute r the x-coordinate of generator * k */
if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx))
{
ECDSA_DATA *ecdsa;
const BIGNUM *priv_key;
+#ifdef OPENSSL_FIPS
+ if(FIPS_selftest_failed())
+ {
+ FIPSerr(FIPS_F_ECDSA_DO_SIGN,FIPS_R_FIPS_SELFTEST_FAILED);
+ return NULL;
+ }
+#endif
+
ecdsa = ecdsa_check(eckey);
group = EC_KEY_get0_group(eckey);
priv_key = EC_KEY_get0_private_key(eckey);
return NULL;
}
+#ifdef OPENSSL_FIPS
+ if (!fips_check_ec_prng(eckey))
+ return NULL;
+#endif
+
ret = ECDSA_SIG_new();
if (!ret)
{
{
if (in_kinv == NULL || in_r == NULL)
{
- if (!ecdsa->meth->ecdsa_sign_setup(eckey, ctx,
- &kinv, &ret->r))
+ if (!ecdsa_sign_setup(
+ eckey, ctx, &kinv, &ret->r, dgst, dgst_len))
{
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN,ERR_R_ECDSA_LIB);
goto err;
const EC_GROUP *group;
const EC_POINT *pub_key;
+#ifdef OPENSSL_FIPS
+ if(FIPS_selftest_failed())
+ {
+ FIPSerr(FIPS_F_ECDSA_DO_VERIFY,FIPS_R_FIPS_SELFTEST_FAILED);
+ return -1;
+ }
+#endif
+
/* check input values */
if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL ||
(pub_key = EC_KEY_get0_public_key(eckey)) == NULL || sig == NULL)