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circuitpython/extmod/moduhashlib.c

256 lines
8.7 KiB

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <assert.h>
#include <string.h>
#include "py/runtime.h"
#include "supervisor/shared/translate.h"
#if MICROPY_PY_UHASHLIB
#if MICROPY_PY_UHASHLIB_SHA256
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/sha256.h"
#else
#include "crypto-algorithms/sha256.h"
#endif
#endif
#if MICROPY_PY_UHASHLIB_SHA1
#if MICROPY_SSL_AXTLS
#include "lib/axtls/crypto/crypto.h"
#endif
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/sha1.h"
#endif
#endif
typedef struct _mp_obj_hash_t {
mp_obj_base_t base;
char state[0];
} mp_obj_hash_t;
#if MICROPY_PY_UHASHLIB_SHA256
STATIC mp_obj_t uhashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_MBEDTLS
STATIC mp_obj_t uhashlib_sha256_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_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(mbedtls_sha256_context));
o->base.type = type;
mbedtls_sha256_init((mbedtls_sha256_context*)&o->state);
mbedtls_sha256_starts((mbedtls_sha256_context*)&o->state, 0);
if (n_args == 1) {
uhashlib_sha256_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t uhashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
mbedtls_sha256_update((mbedtls_sha256_context*)&self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
STATIC mp_obj_t uhashlib_sha256_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
vstr_t vstr;
vstr_init_len(&vstr, 32);
mbedtls_sha256_finish((mbedtls_sha256_context*)&self->state, (unsigned char *)vstr.buf);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#else
static void check_not_unicode(const mp_obj_t arg) {
#if MICROPY_CPYTHON_COMPAT
if (MP_OBJ_IS_STR(arg)) {
mp_raise_TypeError(translate("a bytes-like object is required"));
}
#endif
}
STATIC mp_obj_t uhashlib_sha256_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_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(CRYAL_SHA256_CTX));
o->base.type = type;
sha256_init((CRYAL_SHA256_CTX*)o->state);
if (n_args == 1) {
uhashlib_sha256_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t uhashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg) {
check_not_unicode(arg);
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
sha256_update((CRYAL_SHA256_CTX*)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
STATIC mp_obj_t uhashlib_sha256_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
vstr_t vstr;
vstr_init_len(&vstr, SHA256_BLOCK_SIZE);
sha256_final((CRYAL_SHA256_CTX*)self->state, (byte*)vstr.buf);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif
STATIC MP_DEFINE_CONST_FUN_OBJ_2(uhashlib_sha256_update_obj, uhashlib_sha256_update);
STATIC MP_DEFINE_CONST_FUN_OBJ_1(uhashlib_sha256_digest_obj, uhashlib_sha256_digest);
STATIC const mp_rom_map_elem_t uhashlib_sha256_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&uhashlib_sha256_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&uhashlib_sha256_digest_obj) },
};
STATIC MP_DEFINE_CONST_DICT(uhashlib_sha256_locals_dict, uhashlib_sha256_locals_dict_table);
STATIC const mp_obj_type_t uhashlib_sha256_type = {
{ &mp_type_type },
.name = MP_QSTR_sha256,
.make_new = uhashlib_sha256_make_new,
.locals_dict = (void*)&uhashlib_sha256_locals_dict,
};
#endif
#if MICROPY_PY_UHASHLIB_SHA1
STATIC mp_obj_t uhashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_AXTLS
STATIC mp_obj_t uhashlib_sha1_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_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(SHA1_CTX));
o->base.type = type;
SHA1_Init((SHA1_CTX*)o->state);
if (n_args == 1) {
uhashlib_sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t uhashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg) {
check_not_unicode(arg);
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
SHA1_Update((SHA1_CTX*)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
STATIC mp_obj_t uhashlib_sha1_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
vstr_t vstr;
vstr_init_len(&vstr, SHA1_SIZE);
SHA1_Final((byte*)vstr.buf, (SHA1_CTX*)self->state);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif
#if MICROPY_SSL_MBEDTLS
STATIC mp_obj_t uhashlib_sha1_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_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, sizeof(mbedtls_sha1_context));
o->base.type = type;
mbedtls_sha1_init((mbedtls_sha1_context*)o->state);
mbedtls_sha1_starts((mbedtls_sha1_context*)o->state);
if (n_args == 1) {
uhashlib_sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t uhashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
mbedtls_sha1_update((mbedtls_sha1_context*)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
STATIC mp_obj_t uhashlib_sha1_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
vstr_t vstr;
vstr_init_len(&vstr, 20);
mbedtls_sha1_finish((mbedtls_sha1_context*)self->state, (byte*)vstr.buf);
mbedtls_sha1_free((mbedtls_sha1_context*)self->state);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif
STATIC MP_DEFINE_CONST_FUN_OBJ_2(uhashlib_sha1_update_obj, uhashlib_sha1_update);
STATIC MP_DEFINE_CONST_FUN_OBJ_1(uhashlib_sha1_digest_obj, uhashlib_sha1_digest);
STATIC const mp_rom_map_elem_t uhashlib_sha1_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&uhashlib_sha1_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&uhashlib_sha1_digest_obj) },
};
STATIC MP_DEFINE_CONST_DICT(uhashlib_sha1_locals_dict, uhashlib_sha1_locals_dict_table);
STATIC const mp_obj_type_t uhashlib_sha1_type = {
{ &mp_type_type },
.name = MP_QSTR_sha1,
.make_new = uhashlib_sha1_make_new,
.locals_dict = (void*)&uhashlib_sha1_locals_dict,
};
#endif
STATIC const mp_rom_map_elem_t mp_module_uhashlib_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_hashlib) },
#if MICROPY_PY_UHASHLIB_SHA256
{ MP_ROM_QSTR(MP_QSTR_sha256), MP_ROM_PTR(&uhashlib_sha256_type) },
#endif
#if MICROPY_PY_UHASHLIB_SHA1
{ MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&uhashlib_sha1_type) },
#endif
};
STATIC MP_DEFINE_CONST_DICT(mp_module_uhashlib_globals, mp_module_uhashlib_globals_table);
const mp_obj_module_t mp_module_uhashlib = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mp_module_uhashlib_globals,
};
#if MICROPY_PY_UHASHLIB_SHA256
#include "crypto-algorithms/sha256.c"
#endif
#endif //MICROPY_PY_UHASHLIB