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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-27 01:48:17 +00:00
trezor-firmware/embed/extmod/modtrezorcrypto/modtrezorcrypto-nem.h
2018-06-06 17:24:07 +02:00

70 lines
2.6 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "py/objstr.h"
#include "embed/extmod/trezorobj.h"
#include "nem.h"
/// def validate_address(address: str, network: int) -> bool:
/// '''
/// Validate a NEM address
/// '''
STATIC mp_obj_t mod_trezorcrypto_nem_validate_address(mp_obj_t address, mp_obj_t network) {
mp_buffer_info_t addr;
mp_get_buffer_raise(address, &addr, MP_BUFFER_READ);
uint32_t n = trezor_obj_get_uint(network);
return mp_obj_new_bool(nem_validate_address(addr.buf, n));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorcrypto_nem_validate_address_obj, mod_trezorcrypto_nem_validate_address);
/// def compute_address(public_key: bytes, network: int) -> str:
/// '''
/// Compute a NEM address from a public key
/// '''
STATIC mp_obj_t mod_trezorcrypto_nem_compute_address(mp_obj_t public_key, mp_obj_t network) {
mp_buffer_info_t p;
mp_get_buffer_raise(public_key, &p, MP_BUFFER_READ);
uint32_t n = trezor_obj_get_uint(network);
char address[NEM_ADDRESS_SIZE + 1]; // + 1 for the 0 byte
if (!nem_get_address(p.buf, n, address)) {
mp_raise_ValueError("Failed to compute a NEM address from provided public key");
}
return mp_obj_new_str_of_type(&mp_type_str, (const uint8_t *)address, strlen(address));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorcrypto_nem_compute_address_obj, mod_trezorcrypto_nem_compute_address);
// objects definition
STATIC const mp_rom_map_elem_t mod_trezorcrypto_nem_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_validate_address), MP_ROM_PTR(&mod_trezorcrypto_nem_validate_address_obj) },
{ MP_ROM_QSTR(MP_QSTR_compute_address), MP_ROM_PTR(&mod_trezorcrypto_nem_compute_address_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorcrypto_nem_globals, mod_trezorcrypto_nem_globals_table);
// module definition
STATIC const mp_obj_module_t mod_trezorcrypto_nem_module = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mod_trezorcrypto_nem_globals,
};