mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-18 05:28:40 +00:00
136 lines
5.0 KiB
C
136 lines
5.0 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 "sha3.h"
|
|
#include "memzero.h"
|
|
|
|
/// class Sha3_512:
|
|
/// '''
|
|
/// SHA3_512 context.
|
|
/// '''
|
|
typedef struct _mp_obj_Sha3_512_t {
|
|
mp_obj_base_t base;
|
|
SHA3_CTX ctx;
|
|
bool keccak;
|
|
} mp_obj_Sha3_512_t;
|
|
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512_update(mp_obj_t self, mp_obj_t data);
|
|
|
|
/// def __init__(self, data: bytes = None, keccak = False) -> None:
|
|
/// '''
|
|
/// Creates a hash context object.
|
|
/// '''
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
|
|
mp_arg_check_num(n_args, n_kw, 0, 1, true);
|
|
mp_obj_Sha3_512_t *o = m_new_obj(mp_obj_Sha3_512_t);
|
|
o->base.type = type;
|
|
o->keccak = 0;
|
|
sha3_512_Init(&(o->ctx));
|
|
|
|
STATIC const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_data, MP_ARG_OBJ, {.u_obj = mp_const_none} },
|
|
{ MP_QSTR_keccak, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = MP_OBJ_NULL} },
|
|
};
|
|
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
|
|
if (vals[1].u_obj != MP_OBJ_NULL){
|
|
o->keccak = mp_obj_is_true(vals[1].u_obj);
|
|
}
|
|
|
|
if (vals[0].u_obj != mp_const_none){
|
|
mod_trezorcrypto_Sha3_512_update(MP_OBJ_FROM_PTR(o), vals[0].u_obj);
|
|
}
|
|
return MP_OBJ_FROM_PTR(o);
|
|
}
|
|
|
|
/// def update(self, data: bytes) -> None:
|
|
/// '''
|
|
/// Update the hash context with hashed data.
|
|
/// '''
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512_update(mp_obj_t self, mp_obj_t data) {
|
|
mp_obj_Sha3_512_t *o = MP_OBJ_TO_PTR(self);
|
|
mp_buffer_info_t msg;
|
|
mp_get_buffer_raise(data, &msg, MP_BUFFER_READ);
|
|
if (msg.len > 0) {
|
|
sha3_Update(&(o->ctx), msg.buf, msg.len);
|
|
}
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorcrypto_Sha3_512_update_obj, mod_trezorcrypto_Sha3_512_update);
|
|
|
|
/// def digest(self) -> bytes:
|
|
/// '''
|
|
/// Returns the digest of hashed data.
|
|
/// '''
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512_digest(mp_obj_t self) {
|
|
mp_obj_Sha3_512_t *o = MP_OBJ_TO_PTR(self);
|
|
uint8_t out[SHA3_512_DIGEST_LENGTH];
|
|
SHA3_CTX ctx;
|
|
memcpy(&ctx, &(o->ctx), sizeof(SHA3_CTX));
|
|
if (o->keccak) {
|
|
keccak_Final(&ctx, out);
|
|
} else {
|
|
sha3_Final(&ctx, out);
|
|
}
|
|
memset(&ctx, 0, sizeof(SHA3_CTX));
|
|
return mp_obj_new_bytes(out, sizeof(out));
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorcrypto_Sha3_512_digest_obj, mod_trezorcrypto_Sha3_512_digest);
|
|
|
|
|
|
/// def copy(self) -> sha3:
|
|
/// '''
|
|
/// Returns the copy of the digest object with the current state
|
|
/// '''
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512_copy(size_t n_args, const mp_obj_t *args) {
|
|
mp_obj_Sha3_512_t *o = MP_OBJ_TO_PTR(args[0]);
|
|
mp_obj_Sha3_512_t *out = m_new_obj(mp_obj_Sha3_512_t);
|
|
out->base.type = o->base.type;
|
|
out->keccak = o->keccak;
|
|
memcpy(&(out->ctx), &(o->ctx), sizeof(SHA3_CTX));
|
|
return MP_OBJ_FROM_PTR(out);
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorcrypto_Sha3_512_copy_obj, 1, 1, mod_trezorcrypto_Sha3_512_copy);
|
|
|
|
STATIC mp_obj_t mod_trezorcrypto_Sha3_512___del__(mp_obj_t self) {
|
|
mp_obj_Sha3_512_t *o = MP_OBJ_TO_PTR(self);
|
|
memzero(&(o->ctx), sizeof(SHA3_CTX));
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorcrypto_Sha3_512___del___obj, mod_trezorcrypto_Sha3_512___del__);
|
|
|
|
STATIC const mp_rom_map_elem_t mod_trezorcrypto_Sha3_512_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&mod_trezorcrypto_Sha3_512_update_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&mod_trezorcrypto_Sha3_512_digest_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_copy), MP_ROM_PTR(&mod_trezorcrypto_Sha3_512_copy_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_trezorcrypto_Sha3_512___del___obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_block_size), MP_OBJ_NEW_SMALL_INT(SHA3_512_BLOCK_LENGTH) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest_size), MP_OBJ_NEW_SMALL_INT(SHA3_512_DIGEST_LENGTH) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(mod_trezorcrypto_Sha3_512_locals_dict, mod_trezorcrypto_Sha3_512_locals_dict_table);
|
|
|
|
STATIC const mp_obj_type_t mod_trezorcrypto_Sha3_512_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Sha3_512,
|
|
.make_new = mod_trezorcrypto_Sha3_512_make_new,
|
|
.locals_dict = (void*)&mod_trezorcrypto_Sha3_512_locals_dict,
|
|
};
|