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trezor-core
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trezor.crypto: adopt crc32 function

This commit is contained in:
Pavol Rusnak 2017-12-19 21:54:22 +01:00
parent a9870b9e0e
commit 333c0a633a
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
11 changed files with 144 additions and 12 deletions
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1
SConscript.firmware
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@ -28,6 +28,7 @@ CPPDEFINES_MOD += [
]
SOURCE_MOD += [
'embed/extmod/modtrezorcrypto/modtrezorcrypto.c',
'embed/extmod/modtrezorcrypto/crc.c',
'embed/extmod/modtrezorcrypto/rand.c',
'embed/extmod/modtrezorcrypto/ssss.c',
'vendor/trezor-crypto/address.c',

1
SConscript.unix
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@ -29,6 +29,7 @@ CPPDEFINES_MOD += [
]
SOURCE_MOD += [
'embed/extmod/modtrezorcrypto/modtrezorcrypto.c',
'embed/extmod/modtrezorcrypto/crc.c',
'embed/extmod/modtrezorcrypto/rand.c',
'embed/extmod/modtrezorcrypto/ssss.c',
'vendor/trezor-crypto/address.c',

59
embed/extmod/modtrezorcrypto/crc.c Normal file
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@ -0,0 +1,59 @@
/*
* CRC32 checksum
*
* Copyright (c) 1998-2003 by Joergen Ibsen / Jibz
* All Rights Reserved
*
* http://www.ibsensoftware.com/
*
* This software is provided 'as-is', without any express
* or implied warranty. In no event will the authors be
* held liable for any damages arising from the use of
* this software.
*
* Permission is granted to anyone to use this software
* for any purpose, including commercial applications,
* and to alter it and redistribute it freely, subject to
* the following restrictions:
*
* 1. The origin of this software must not be
* misrepresented; you must not claim that you
* wrote the original software. If you use this
* software in a product, an acknowledgment in
* the product documentation would be appreciated
* but is not required.
*
* 2. Altered source versions must be plainly marked
* as such, and must not be misrepresented as
* being the original software.
*
* 3. This notice may not be removed or altered from
* any source distribution.
*/
/*
* CRC32 algorithm taken from the zlib source, which is
* Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler
*/
#include "crc.h"
static const uint32_t crc32tab[16] = {
0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190,
0x6b6b51f4, 0x4db26158, 0x5005713c, 0xedb88320, 0xf00f9344,
0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278,
0xbdbdf21c
};
/* crc is previous value for incremental computation, 0xffffffff initially */
uint32_t crc32(const uint8_t *data, uint32_t length, uint32_t crc)
{
for (uint32_t i = 0; i < length; ++i) {
crc ^= data[i];
crc = crc32tab[crc & 0x0f] ^ (crc >> 4);
crc = crc32tab[crc & 0x0f] ^ (crc >> 4);
}
// return value suitable for passing in next time, for final value invert it
return crc/* ^ 0xffffffff*/;
}

15
embed/extmod/modtrezorcrypto/crc.h Normal file
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@ -0,0 +1,15 @@
/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#ifndef __CRC_H__
#define __CRC_H__
#include <stdint.h>
uint32_t crc32(const uint8_t *data, uint32_t length, uint32_t crc);
#endif

29
embed/extmod/modtrezorcrypto/modtrezorcrypto-crc.h Normal file
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@ -0,0 +1,29 @@
/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#include "py/objstr.h"
#include "crc.h"
mp_obj_t mod_trezorcrypto_crc_crc32(size_t n_args, const mp_obj_t *args) {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
uint32_t crc = (n_args > 1) ? mp_obj_get_int_truncated(args[1]) : 0;
crc = crc32(bufinfo.buf, bufinfo.len, crc ^ 0xffffffff);
return mp_obj_new_int_from_uint(crc ^ 0xffffffff);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorcrypto_crc_crc32_obj, 1, 2, mod_trezorcrypto_crc_crc32);
STATIC const mp_rom_map_elem_t mod_trezorcrypto_crc_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_crc) },
{ MP_ROM_QSTR(MP_QSTR_crc32), MP_ROM_PTR(&mod_trezorcrypto_crc_crc32_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorcrypto_crc_globals, mod_trezorcrypto_crc_globals_table);
STATIC const mp_obj_module_t mod_trezorcrypto_crc_module = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mod_trezorcrypto_crc_globals,
};

18
embed/extmod/modtrezorcrypto/modtrezorcrypto.c
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@ -19,13 +19,14 @@
#include "modtrezorcrypto-blake256.h"
#include "modtrezorcrypto-blake2b.h"
#include "modtrezorcrypto-blake2s.h"
#include "modtrezorcrypto-crc.h"
#include "modtrezorcrypto-curve25519.h"
#include "modtrezorcrypto-ed25519.h"
#include "modtrezorcrypto-nist256p1.h"
#include "modtrezorcrypto-pbkdf2.h"
#include "modtrezorcrypto-random.h"
#include "modtrezorcrypto-rfc6979.h"
#include "modtrezorcrypto-ripemd160.h"
#include "modtrezorcrypto-nist256p1.h"
#include "modtrezorcrypto-secp256k1.h"
#include "modtrezorcrypto-sha1.h"
#include "modtrezorcrypto-sha256.h"
@ -37,24 +38,25 @@
STATIC const mp_rom_map_elem_t mp_module_trezorcrypto_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_trezorcrypto) },
{ MP_ROM_QSTR(MP_QSTR_AES), MP_ROM_PTR(&mod_trezorcrypto_AES_type) },
{ MP_ROM_QSTR(MP_QSTR_bip32), MP_ROM_PTR(&mod_trezorcrypto_bip32_module) },
{ MP_ROM_QSTR(MP_QSTR_bip39), MP_ROM_PTR(&mod_trezorcrypto_bip39_module) },
{ MP_ROM_QSTR(MP_QSTR_blake256), MP_ROM_PTR(&mod_trezorcrypto_Blake256_type) },
{ MP_ROM_QSTR(MP_QSTR_blake2b), MP_ROM_PTR(&mod_trezorcrypto_Blake2b_type) },
{ MP_ROM_QSTR(MP_QSTR_blake2s), MP_ROM_PTR(&mod_trezorcrypto_Blake2s_type) },
{ MP_ROM_QSTR(MP_QSTR_crc), MP_ROM_PTR(&mod_trezorcrypto_crc_module) },
{ MP_ROM_QSTR(MP_QSTR_curve25519), MP_ROM_PTR(&mod_trezorcrypto_curve25519_module) },
{ MP_ROM_QSTR(MP_QSTR_ed25519), MP_ROM_PTR(&mod_trezorcrypto_ed25519_module) },
{ MP_ROM_QSTR(MP_QSTR_nist256p1), MP_ROM_PTR(&mod_trezorcrypto_nist256p1_module) },
{ MP_ROM_QSTR(MP_QSTR_pbkdf2), MP_ROM_PTR(&mod_trezorcrypto_Pbkdf2_type) },
{ MP_ROM_QSTR(MP_QSTR_random), MP_ROM_PTR(&mod_trezorcrypto_random_module) },
{ MP_ROM_QSTR(MP_QSTR_rfc6979), MP_ROM_PTR(&mod_trezorcrypto_Rfc6979_type) },
{ MP_ROM_QSTR(MP_QSTR_ripemd160), MP_ROM_PTR(&mod_trezorcrypto_Ripemd160_type) },
{ MP_ROM_QSTR(MP_QSTR_secp256k1), MP_ROM_PTR(&mod_trezorcrypto_secp256k1_module) },
{ MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&mod_trezorcrypto_Sha1_type) },
{ MP_ROM_QSTR(MP_QSTR_sha256), MP_ROM_PTR(&mod_trezorcrypto_Sha256_type) },
{ MP_ROM_QSTR(MP_QSTR_sha512), MP_ROM_PTR(&mod_trezorcrypto_Sha512_type) },
{ MP_ROM_QSTR(MP_QSTR_sha3_256), MP_ROM_PTR(&mod_trezorcrypto_Sha3_256_type) },
{ MP_ROM_QSTR(MP_QSTR_sha3_512), MP_ROM_PTR(&mod_trezorcrypto_Sha3_512_type) },
{ MP_ROM_QSTR(MP_QSTR_bip32), MP_ROM_PTR(&mod_trezorcrypto_bip32_module) },
{ MP_ROM_QSTR(MP_QSTR_bip39), MP_ROM_PTR(&mod_trezorcrypto_bip39_module) },
{ MP_ROM_QSTR(MP_QSTR_curve25519), MP_ROM_PTR(&mod_trezorcrypto_curve25519_module) },
{ MP_ROM_QSTR(MP_QSTR_ed25519), MP_ROM_PTR(&mod_trezorcrypto_ed25519_module) },
{ MP_ROM_QSTR(MP_QSTR_nist256p1), MP_ROM_PTR(&mod_trezorcrypto_nist256p1_module) },
{ MP_ROM_QSTR(MP_QSTR_random), MP_ROM_PTR(&mod_trezorcrypto_random_module) },
{ MP_ROM_QSTR(MP_QSTR_secp256k1), MP_ROM_PTR(&mod_trezorcrypto_secp256k1_module) },
{ MP_ROM_QSTR(MP_QSTR_ssss), MP_ROM_PTR(&mod_trezorcrypto_ssss_module) },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_trezorcrypto_globals, mp_module_trezorcrypto_globals_table);

4
embed/firmware/mpconfigport.h
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@ -117,13 +117,13 @@
// extended modules
#define MICROPY_PY_UCTYPES (1)
#define MICROPY_PY_UZLIB (1)
#define MICROPY_PY_UZLIB (0)
#define MICROPY_PY_UJSON (0)
#define MICROPY_PY_URE (0)
#define MICROPY_PY_UHEAPQ (0)
#define MICROPY_PY_UHASHLIB (0)
#define MICROPY_PY_UBINASCII (1)
#define MICROPY_PY_UBINASCII_CRC32 (1)
#define MICROPY_PY_UBINASCII_CRC32 (0)
#define MICROPY_PY_URANDOM (0)
#define MICROPY_PY_URANDOM_EXTRA_FUNCS (0)
#define MICROPY_PY_USELECT (0)

4
embed/unix/mpconfigport.h
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@ -114,7 +114,7 @@
#define MICROPY_PY_UTIME_MP_HAL (1)
#define MICROPY_PY_UERRNO (0)
#define MICROPY_PY_UCTYPES (1)
#define MICROPY_PY_UZLIB (1)
#define MICROPY_PY_UZLIB (0)
#define MICROPY_PY_UJSON (0)
#define MICROPY_PY_URE (0)
#define MICROPY_PY_UHEAPQ (0)
@ -124,7 +124,7 @@
#define MICROPY_PY_UHASHLIB_SHA1 (0)
#endif
#define MICROPY_PY_UBINASCII (1)
#define MICROPY_PY_UBINASCII_CRC32 (1)
#define MICROPY_PY_UBINASCII_CRC32 (0)
#define MICROPY_PY_URANDOM (0)
#ifndef MICROPY_PY_USELECT_POSIX
#define MICROPY_PY_USELECT_POSIX (0)

1
src/trezor/crypto/__init__.py
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@ -1,5 +1,6 @@
from trezorcrypto import bip32
from trezorcrypto import bip39
from trezorcrypto import crc
from trezorcrypto import pbkdf2
from trezorcrypto import random
from trezorcrypto import rfc6979

1
tests/.gitignore vendored Normal file
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@ -0,0 +1 @@
.cache/

23
tests/test_trezor.crypto.crc.py Normal file
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@ -0,0 +1,23 @@
from common import *
from trezor.crypto import crc
from ubinascii import unhexlify
class TestCryptoCrc(unittest.TestCase):
vectors_crc32 = [
('123456789', 0xCBF43926),
(unhexlify('0000000000000000000000000000000000000000000000000000000000000000'), 0x190A55AD),
(unhexlify('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF'), 0xFF6CAB0B),
(unhexlify('000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F'), 0x91267E8A),
('The quick brown fox jumps over the lazy dog', 0x414FA339),
]
def test_crc32(self):
for i, o in self.vectors_crc32:
self.assertEqual(crc.crc32(i), o)
if __name__ == '__main__':
unittest.main()