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gcrypt: Support setting private value and testing of DH backend

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This commit is contained in:
Martin Willi
2015-04-15 14:38:42 +02:00
parent 0778c027a7
commit 41421b85a9
1 changed files with 19 additions and 0 deletions
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src/libstrongswan/plugins/gcrypt/gcrypt_dh.c
+19
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@@ -145,6 +145,24 @@ METHOD(diffie_hellman_t, get_my_public_value, bool,
return TRUE;
}
METHOD(diffie_hellman_t, set_private_value, bool,
private_gcrypt_dh_t *this, chunk_t value)
{
gcry_error_t err;
gcry_mpi_t xa;
err = gcry_mpi_scan(&xa, GCRYMPI_FMT_USG, value.ptr, value.len, NULL);
if (!err)
{
gcry_mpi_release(this->xa);
this->xa = xa;
gcry_mpi_powm(this->ya, this->g, this->xa, this->p);
gcry_mpi_release(this->zz);
this->zz = NULL;
}
return !err;
}
METHOD(diffie_hellman_t, get_shared_secret, bool,
private_gcrypt_dh_t *this, chunk_t *secret)
{
@@ -191,6 +209,7 @@ gcrypt_dh_t *create_generic(diffie_hellman_group_t group, size_t exp_len,
.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,
},