diff options
Diffstat (limited to 'src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c')
| -rw-r--r-- | src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c b/src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c index 550a5432f..a1af500e2 100644 --- a/src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c +++ b/src/libstrongswan/plugins/openssl/openssl_ec_diffie_hellman.c @@ -248,6 +248,49 @@ METHOD(diffie_hellman_t, get_my_public_value, bool, return TRUE; } +METHOD(diffie_hellman_t, set_private_value, bool, + private_openssl_ec_diffie_hellman_t *this, chunk_t value) +{ + EC_POINT *pub = NULL; + BIGNUM *priv = NULL; + bool ret = FALSE; + + priv = BN_bin2bn(value.ptr, value.len, NULL); + if (!priv) + { + goto error; + } + pub = EC_POINT_new(EC_KEY_get0_group(this->key)); + if (!pub) + { + goto error; + } + if (EC_POINT_mul(this->ec_group, pub, priv, NULL, NULL, NULL) != 1) + { + goto error; + } + if (EC_KEY_set_private_key(this->key, priv) != 1) + { + goto error; + } + if (EC_KEY_set_public_key(this->key, pub) != 1) + { + goto error; + } + ret = TRUE; + +error: + if (pub) + { + EC_POINT_free(pub); + } + if (priv) + { + BN_free(priv); + } + return ret; +} + METHOD(diffie_hellman_t, get_shared_secret, bool, private_openssl_ec_diffie_hellman_t *this, chunk_t *secret) { @@ -558,6 +601,7 @@ openssl_ec_diffie_hellman_t *openssl_ec_diffie_hellman_create(diffie_hellman_gro .get_shared_secret = _get_shared_secret, .set_other_public_value = _set_other_public_value, .get_my_public_value = _get_my_public_value, + .set_private_value = _set_private_value, .get_dh_group = _get_dh_group, .destroy = _destroy, }, |