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/*
* 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"
#if MICROPY_PY_HASHLIB
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/version.h"
#endif
#if MICROPY_PY_HASHLIB_SHA256
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/sha256.h"
#else
#include "lib/crypto-algorithms/sha256.h"
#endif
#endif
#if MICROPY_PY_HASHLIB_SHA1 || MICROPY_PY_HASHLIB_MD5
#if MICROPY_SSL_AXTLS
#include "lib/axtls/crypto/crypto.h"
#endif
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/md5.h"
#include "mbedtls/sha1.h"
#endif
#endif
typedef struct _mp_obj_hash_t {
mp_obj_base_t base;
bool final; // if set, update and digest raise an exception
uintptr_t state[0]; // must be aligned to a machine word
} mp_obj_hash_t;
static void hashlib_ensure_not_final(mp_obj_hash_t *self) {
if (self->final) {
mp_raise_ValueError(MP_ERROR_TEXT("hash is final"));
}
}
#if MICROPY_PY_HASHLIB_SHA256
static mp_obj_t hashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_MBEDTLS
#if MBEDTLS_VERSION_NUMBER < 0x02070000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
#define mbedtls_sha256_starts_ret mbedtls_sha256_starts
#define mbedtls_sha256_update_ret mbedtls_sha256_update
#define mbedtls_sha256_finish_ret mbedtls_sha256_finish
#endif
static mp_obj_t hashlib_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(mbedtls_sha256_context), type);
o->final = false;
mbedtls_sha256_init((mbedtls_sha256_context *)&o->state);
mbedtls_sha256_starts_ret((mbedtls_sha256_context *)&o->state, 0);
if (n_args == 1) {
hashlib_sha256_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
mbedtls_sha256_update_ret((mbedtls_sha256_context *)&self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
static mp_obj_t hashlib_sha256_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, 32);
mbedtls_sha256_finish_ret((mbedtls_sha256_context *)&self->state, (unsigned char *)vstr.buf);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#else
#include "lib/crypto-algorithms/sha256.c"
static mp_obj_t hashlib_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(CRYAL_SHA256_CTX), type);
o->final = false;
sha256_init((CRYAL_SHA256_CTX *)o->state);
if (n_args == 1) {
hashlib_sha256_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
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 hashlib_sha256_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, SHA256_BLOCK_SIZE);
sha256_final((CRYAL_SHA256_CTX *)self->state, (byte *)vstr.buf);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#endif
static MP_DEFINE_CONST_FUN_OBJ_2(hashlib_sha256_update_obj, hashlib_sha256_update);
static MP_DEFINE_CONST_FUN_OBJ_1(hashlib_sha256_digest_obj, hashlib_sha256_digest);
static const mp_rom_map_elem_t hashlib_sha256_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&hashlib_sha256_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&hashlib_sha256_digest_obj) },
};
static MP_DEFINE_CONST_DICT(hashlib_sha256_locals_dict, hashlib_sha256_locals_dict_table);
static MP_DEFINE_CONST_OBJ_TYPE(
hashlib_sha256_type,
MP_QSTR_sha256,
MP_TYPE_FLAG_NONE,
make_new, hashlib_sha256_make_new,
locals_dict, &hashlib_sha256_locals_dict
);
#endif
#if MICROPY_PY_HASHLIB_SHA1
static mp_obj_t hashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_AXTLS
static mp_obj_t hashlib_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(SHA1_CTX), type);
o->final = false;
SHA1_Init((SHA1_CTX *)o->state);
if (n_args == 1) {
hashlib_sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
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 hashlib_sha1_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, SHA1_SIZE);
SHA1_Final((byte *)vstr.buf, (SHA1_CTX *)self->state);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#endif
#if MICROPY_SSL_MBEDTLS
#if MBEDTLS_VERSION_NUMBER < 0x02070000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
#define mbedtls_sha1_starts_ret mbedtls_sha1_starts
#define mbedtls_sha1_update_ret mbedtls_sha1_update
#define mbedtls_sha1_finish_ret mbedtls_sha1_finish
#endif
static mp_obj_t hashlib_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(mbedtls_sha1_context), type);
o->final = false;
mbedtls_sha1_init((mbedtls_sha1_context *)o->state);
mbedtls_sha1_starts_ret((mbedtls_sha1_context *)o->state);
if (n_args == 1) {
hashlib_sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_sha1_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
mbedtls_sha1_update_ret((mbedtls_sha1_context *)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
static mp_obj_t hashlib_sha1_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, 20);
mbedtls_sha1_finish_ret((mbedtls_sha1_context *)self->state, (byte *)vstr.buf);
mbedtls_sha1_free((mbedtls_sha1_context *)self->state);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#endif
static MP_DEFINE_CONST_FUN_OBJ_2(hashlib_sha1_update_obj, hashlib_sha1_update);
static MP_DEFINE_CONST_FUN_OBJ_1(hashlib_sha1_digest_obj, hashlib_sha1_digest);
static const mp_rom_map_elem_t hashlib_sha1_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&hashlib_sha1_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&hashlib_sha1_digest_obj) },
};
static MP_DEFINE_CONST_DICT(hashlib_sha1_locals_dict, hashlib_sha1_locals_dict_table);
static MP_DEFINE_CONST_OBJ_TYPE(
hashlib_sha1_type,
MP_QSTR_sha1,
MP_TYPE_FLAG_NONE,
make_new, hashlib_sha1_make_new,
locals_dict, &hashlib_sha1_locals_dict
);
#endif
#if MICROPY_PY_HASHLIB_MD5
static mp_obj_t hashlib_md5_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_AXTLS
static mp_obj_t hashlib_md5_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(MD5_CTX), type);
o->final = false;
MD5_Init((MD5_CTX *)o->state);
if (n_args == 1) {
hashlib_md5_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_md5_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
MD5_Update((MD5_CTX *)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
static mp_obj_t hashlib_md5_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, MD5_SIZE);
MD5_Final((byte *)vstr.buf, (MD5_CTX *)self->state);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#endif // MICROPY_SSL_AXTLS
#if MICROPY_SSL_MBEDTLS
#if MBEDTLS_VERSION_NUMBER < 0x02070000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
#define mbedtls_md5_starts_ret mbedtls_md5_starts
#define mbedtls_md5_update_ret mbedtls_md5_update
#define mbedtls_md5_finish_ret mbedtls_md5_finish
#endif
static mp_obj_t hashlib_md5_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 = mp_obj_malloc_var(mp_obj_hash_t, state, char, sizeof(mbedtls_md5_context), type);
o->final = false;
mbedtls_md5_init((mbedtls_md5_context *)o->state);
mbedtls_md5_starts_ret((mbedtls_md5_context *)o->state);
if (n_args == 1) {
hashlib_md5_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
static mp_obj_t hashlib_md5_update(mp_obj_t self_in, mp_obj_t arg) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_READ);
mbedtls_md5_update_ret((mbedtls_md5_context *)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
static mp_obj_t hashlib_md5_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
hashlib_ensure_not_final(self);
self->final = true;
vstr_t vstr;
vstr_init_len(&vstr, 16);
mbedtls_md5_finish_ret((mbedtls_md5_context *)self->state, (byte *)vstr.buf);
mbedtls_md5_free((mbedtls_md5_context *)self->state);
return mp_obj_new_bytes_from_vstr(&vstr);
}
#endif // MICROPY_SSL_MBEDTLS
static MP_DEFINE_CONST_FUN_OBJ_2(hashlib_md5_update_obj, hashlib_md5_update);
static MP_DEFINE_CONST_FUN_OBJ_1(hashlib_md5_digest_obj, hashlib_md5_digest);
static const mp_rom_map_elem_t hashlib_md5_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&hashlib_md5_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&hashlib_md5_digest_obj) },
};
static MP_DEFINE_CONST_DICT(hashlib_md5_locals_dict, hashlib_md5_locals_dict_table);
static MP_DEFINE_CONST_OBJ_TYPE(
hashlib_md5_type,
MP_QSTR_md5,
MP_TYPE_FLAG_NONE,
make_new, hashlib_md5_make_new,
locals_dict, &hashlib_md5_locals_dict
);
#endif // MICROPY_PY_HASHLIB_MD5
static const mp_rom_map_elem_t mp_module_hashlib_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_hashlib) },
#if MICROPY_PY_HASHLIB_SHA256
{ MP_ROM_QSTR(MP_QSTR_sha256), MP_ROM_PTR(&hashlib_sha256_type) },
#endif
#if MICROPY_PY_HASHLIB_SHA1
{ MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&hashlib_sha1_type) },
#endif
#if MICROPY_PY_HASHLIB_MD5
{ MP_ROM_QSTR(MP_QSTR_md5), MP_ROM_PTR(&hashlib_md5_type) },
#endif
};
static MP_DEFINE_CONST_DICT(mp_module_hashlib_globals, mp_module_hashlib_globals_table);
const mp_obj_module_t mp_module_hashlib = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&mp_module_hashlib_globals,
};
MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_hashlib, mp_module_hashlib);
#endif // MICROPY_PY_HASHLIB