161 lines
5.4 KiB
C
161 lines
5.4 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014 Paul Sokolovsky
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <assert.h>
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#include <string.h>
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#include "py/nlr.h"
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#include "py/runtime.h"
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#if MICROPY_PY_UHASHLIB
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#include "crypto-algorithms/sha256.h"
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#if MICROPY_PY_UHASHLIB_SHA1
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#include "lib/axtls/crypto/crypto.h"
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#endif
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typedef struct _mp_obj_hash_t {
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mp_obj_base_t base;
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char state[0];
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} mp_obj_hash_t;
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STATIC mp_obj_t hash_update(mp_obj_t self_in, mp_obj_t arg);
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STATIC mp_obj_t hash_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 0, 1, false);
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mp_obj_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(CRYAL_SHA256_CTX));
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o->base.type = type;
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sha256_init((CRYAL_SHA256_CTX*)o->state);
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if (n_args == 1) {
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hash_update(MP_OBJ_FROM_PTR(o), args[0]);
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}
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return MP_OBJ_FROM_PTR(o);
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}
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#if MICROPY_PY_UHASHLIB_SHA1
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STATIC mp_obj_t sha1_update(mp_obj_t self_in, mp_obj_t arg);
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STATIC mp_obj_t sha1_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
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mp_arg_check_num(n_args, n_kw, 0, 1, false);
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mp_obj_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(SHA1_CTX));
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o->base.type = type;
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SHA1_Init((SHA1_CTX*)o->state);
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if (n_args == 1) {
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sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
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}
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return MP_OBJ_FROM_PTR(o);
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}
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#endif
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STATIC mp_obj_t hash_update(mp_obj_t self_in, mp_obj_t arg) {
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mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
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sha256_update((CRYAL_SHA256_CTX*)self->state, bufinfo.buf, bufinfo.len);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_2(hash_update_obj, hash_update);
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#if MICROPY_PY_UHASHLIB_SHA1
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STATIC mp_obj_t sha1_update(mp_obj_t self_in, mp_obj_t arg) {
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mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
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SHA1_Update((SHA1_CTX*)self->state, bufinfo.buf, bufinfo.len);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_2(sha1_update_obj, sha1_update);
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#endif
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STATIC mp_obj_t hash_digest(mp_obj_t self_in) {
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mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
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vstr_t vstr;
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vstr_init_len(&vstr, SHA256_BLOCK_SIZE);
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sha256_final((CRYAL_SHA256_CTX*)self->state, (byte*)vstr.buf);
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return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(hash_digest_obj, hash_digest);
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#if MICROPY_PY_UHASHLIB_SHA1
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STATIC mp_obj_t sha1_digest(mp_obj_t self_in) {
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mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
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vstr_t vstr;
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vstr_init_len(&vstr, SHA1_SIZE);
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SHA1_Final((byte*)vstr.buf, (SHA1_CTX*)self->state);
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return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(sha1_digest_obj, sha1_digest);
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#endif
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STATIC const mp_rom_map_elem_t hash_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&hash_update_obj) },
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{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&hash_digest_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(hash_locals_dict, hash_locals_dict_table);
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STATIC const mp_obj_type_t sha256_type = {
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{ &mp_type_type },
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.name = MP_QSTR_sha256,
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.make_new = hash_make_new,
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.locals_dict = (void*)&hash_locals_dict,
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};
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#if MICROPY_PY_UHASHLIB_SHA1
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STATIC const mp_rom_map_elem_t sha1_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&sha1_update_obj) },
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{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&sha1_digest_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(sha1_locals_dict, sha1_locals_dict_table);
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STATIC const mp_obj_type_t sha1_type = {
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{ &mp_type_type },
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.name = MP_QSTR_sha1,
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.make_new = sha1_make_new,
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.locals_dict = (void*)&sha1_locals_dict,
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};
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#endif
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STATIC const mp_rom_map_elem_t mp_module_hashlib_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_uhashlib) },
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{ MP_ROM_QSTR(MP_QSTR_sha256), MP_ROM_PTR(&sha256_type) },
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#if MICROPY_PY_UHASHLIB_SHA1
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{ MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&sha1_type) },
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#endif
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_hashlib_globals, mp_module_hashlib_globals_table);
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const mp_obj_module_t mp_module_uhashlib = {
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.base = { &mp_type_module },
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.name = MP_QSTR_uhashlib,
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.globals = (mp_obj_dict_t*)&mp_module_hashlib_globals,
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};
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#include "crypto-algorithms/sha256.c"
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#endif //MICROPY_PY_UHASHLIB
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