mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-24 07:18:09 +00:00
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*
|
|
* Copyright (c) Pavol Rusnak, SatoshiLabs
|
|
*
|
|
* Licensed under Microsoft Reference Source License (Ms-RSL)
|
|
* see LICENSE.md file for details
|
|
*/
|
|
|
|
#include "py/objstr.h"
|
|
|
|
#include "trezor-crypto/sha2.h"
|
|
|
|
#define HASH_SHA512_BLOCK_SIZE 128
|
|
#define HASH_SHA512_DIGEST_SIZE 64
|
|
|
|
// class Sha512(object):
|
|
typedef struct _mp_obj_Sha512_t {
|
|
mp_obj_base_t base;
|
|
SHA512_CTX ctx;
|
|
} mp_obj_Sha512_t;
|
|
|
|
STATIC mp_obj_t mod_TrezorCrypto_Sha512_update(mp_obj_t self, mp_obj_t data);
|
|
|
|
// def Sha512.__init__(self, data: bytes = None)
|
|
STATIC mp_obj_t mod_TrezorCrypto_Sha512_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, false);
|
|
mp_obj_Sha512_t *o = m_new_obj(mp_obj_Sha512_t);
|
|
o->base.type = type;
|
|
sha512_Init(&(o->ctx));
|
|
if (n_args == 1) {
|
|
mod_TrezorCrypto_Sha512_update(MP_OBJ_FROM_PTR(o), args[0]);
|
|
}
|
|
return MP_OBJ_FROM_PTR(o);
|
|
}
|
|
|
|
// def Sha512.hash(self, data: bytes) -> None
|
|
STATIC mp_obj_t mod_TrezorCrypto_Sha512_update(mp_obj_t self, mp_obj_t data) {
|
|
mp_obj_Sha512_t *o = MP_OBJ_TO_PTR(self);
|
|
mp_buffer_info_t databuf;
|
|
mp_get_buffer_raise(data, &databuf, MP_BUFFER_READ);
|
|
sha512_Update(&(o->ctx), databuf.buf, databuf.len);
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_TrezorCrypto_Sha512_update_obj, mod_TrezorCrypto_Sha512_update);
|
|
|
|
// def Sha512.digest(self) -> bytes
|
|
STATIC mp_obj_t mod_TrezorCrypto_Sha512_digest(mp_obj_t self) {
|
|
mp_obj_Sha512_t *o = MP_OBJ_TO_PTR(self);
|
|
vstr_t vstr;
|
|
vstr_init_len(&vstr, HASH_SHA512_DIGEST_SIZE);
|
|
SHA512_CTX ctx;
|
|
memcpy(&ctx, &(o->ctx), sizeof(SHA512_CTX));
|
|
sha512_Final(&ctx, (uint8_t *)vstr.buf);
|
|
memset(&ctx, 0, sizeof(SHA512_CTX));
|
|
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorCrypto_Sha512_digest_obj, mod_TrezorCrypto_Sha512_digest);
|
|
|
|
// def Sha512.__del__(self) -> None
|
|
STATIC mp_obj_t mod_TrezorCrypto_Sha512___del__(mp_obj_t self) {
|
|
mp_obj_Sha512_t *o = MP_OBJ_TO_PTR(self);
|
|
memset(&(o->ctx), 0, sizeof(SHA512_CTX));
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorCrypto_Sha512___del___obj, mod_TrezorCrypto_Sha512___del__);
|
|
|
|
// Sha512 stuff
|
|
|
|
STATIC const mp_rom_map_elem_t mod_TrezorCrypto_Sha512_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&mod_TrezorCrypto_Sha512_update_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&mod_TrezorCrypto_Sha512_digest_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_TrezorCrypto_Sha512___del___obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_block_size), MP_OBJ_NEW_SMALL_INT(HASH_SHA512_BLOCK_SIZE) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest_size), MP_OBJ_NEW_SMALL_INT(HASH_SHA512_DIGEST_SIZE) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(mod_TrezorCrypto_Sha512_locals_dict, mod_TrezorCrypto_Sha512_locals_dict_table);
|
|
|
|
STATIC const mp_obj_type_t mod_TrezorCrypto_Sha512_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Sha512,
|
|
.make_new = mod_TrezorCrypto_Sha512_make_new,
|
|
.locals_dict = (void*)&mod_TrezorCrypto_Sha512_locals_dict,
|
|
};
|