mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-25 07:48:10 +00:00
95 lines
3.6 KiB
C
95 lines
3.6 KiB
C
/*
|
|
* Copyright (c) Pavol Rusnak, SatoshiLabs
|
|
*
|
|
* Licensed under TREZOR License
|
|
* see LICENSE file for details
|
|
*/
|
|
|
|
#include "py/objstr.h"
|
|
|
|
#include "trezor-crypto/blake2b.h"
|
|
|
|
typedef struct _mp_obj_Blake2b_t {
|
|
mp_obj_base_t base;
|
|
BLAKE2B_CTX ctx;
|
|
} mp_obj_Blake2b_t;
|
|
|
|
STATIC mp_obj_t mod_TrezorCrypto_Blake2b_update(mp_obj_t self, mp_obj_t data);
|
|
|
|
/// def trezor.crypto.hashlib.blake2b(data: bytes=None, key: bytes=None) -> Blake2b:
|
|
/// '''
|
|
/// Creates a hash context object.
|
|
/// '''
|
|
STATIC mp_obj_t mod_TrezorCrypto_Blake2b_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, 2, false);
|
|
mp_obj_Blake2b_t *o = m_new_obj(mp_obj_Blake2b_t);
|
|
o->base.type = type;
|
|
// constructor called with key argument set
|
|
if (n_args == 2) {
|
|
mp_buffer_info_t key;
|
|
mp_get_buffer_raise(args[1], &key, MP_BUFFER_READ);
|
|
blake2b_InitKey(&(o->ctx), BLAKE2B_DIGEST_LENGTH, key.buf, key.len);
|
|
} else {
|
|
blake2b_Init(&(o->ctx), BLAKE2B_DIGEST_LENGTH);
|
|
}
|
|
// constructor called with data argument set
|
|
if (n_args >= 1) {
|
|
mod_TrezorCrypto_Blake2b_update(MP_OBJ_FROM_PTR(o), args[0]);
|
|
}
|
|
return MP_OBJ_FROM_PTR(o);
|
|
}
|
|
|
|
/// def trezor.crypto.hashlib.blake2b.update(self, data: bytes) -> None:
|
|
/// '''
|
|
/// Update the hash context with hashed data.
|
|
/// '''
|
|
STATIC mp_obj_t mod_TrezorCrypto_Blake2b_update(mp_obj_t self, mp_obj_t data) {
|
|
mp_obj_Blake2b_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) {
|
|
blake2b_Update(&(o->ctx), msg.buf, msg.len);
|
|
}
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_TrezorCrypto_Blake2b_update_obj, mod_TrezorCrypto_Blake2b_update);
|
|
|
|
/// def trezor.crypto.hashlib.blake2b.digest(self) -> bytes:
|
|
/// '''
|
|
/// Returns the digest of hashed data.
|
|
/// '''
|
|
STATIC mp_obj_t mod_TrezorCrypto_Blake2b_digest(mp_obj_t self) {
|
|
mp_obj_Blake2b_t *o = MP_OBJ_TO_PTR(self);
|
|
vstr_t vstr;
|
|
vstr_init_len(&vstr, BLAKE2B_DIGEST_LENGTH);
|
|
BLAKE2B_CTX ctx;
|
|
memcpy(&ctx, &(o->ctx), sizeof(BLAKE2B_CTX));
|
|
blake2b_Final(&ctx, (uint8_t *)vstr.buf, BLAKE2B_DIGEST_LENGTH);
|
|
memset(&ctx, 0, sizeof(BLAKE2B_CTX));
|
|
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorCrypto_Blake2b_digest_obj, mod_TrezorCrypto_Blake2b_digest);
|
|
|
|
STATIC mp_obj_t mod_TrezorCrypto_Blake2b___del__(mp_obj_t self) {
|
|
mp_obj_Blake2b_t *o = MP_OBJ_TO_PTR(self);
|
|
memset(&(o->ctx), 0, sizeof(BLAKE2B_CTX));
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_TrezorCrypto_Blake2b___del___obj, mod_TrezorCrypto_Blake2b___del__);
|
|
|
|
STATIC const mp_rom_map_elem_t mod_TrezorCrypto_Blake2b_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&mod_TrezorCrypto_Blake2b_update_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&mod_TrezorCrypto_Blake2b_digest_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_TrezorCrypto_Blake2b___del___obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_block_size), MP_OBJ_NEW_SMALL_INT(BLAKE2B_BLOCK_LENGTH) },
|
|
{ MP_ROM_QSTR(MP_QSTR_digest_size), MP_OBJ_NEW_SMALL_INT(BLAKE2B_DIGEST_LENGTH) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(mod_TrezorCrypto_Blake2b_locals_dict, mod_TrezorCrypto_Blake2b_locals_dict_table);
|
|
|
|
STATIC const mp_obj_type_t mod_TrezorCrypto_Blake2b_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Blake2b,
|
|
.make_new = mod_TrezorCrypto_Blake2b_make_new,
|
|
.locals_dict = (void*)&mod_TrezorCrypto_Blake2b_locals_dict,
|
|
};
|