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extmod/moduhashlib: Add md5 implementation, using axTLS. 

MD5 is still widely used, and may be important in some cases for networking
interoperability, e.g. HTTP Digest authentication.
This commit is contained in:
Paul Sokolovsky 2018-08-19 11:58:22 +03:00 committed by Damien George
parent 89516b2b62
commit 5fe3730a30
2 changed files with 57 additions and 1 deletions
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54
extmod/moduhashlib.c
View File

@ -41,7 +41,7 @@
#endif
#if MICROPY_PY_UHASHLIB_SHA1
#if MICROPY_PY_UHASHLIB_SHA1 || MICROPY_PY_UHASHLIB_MD5
#if MICROPY_SSL_AXTLS
#include "lib/axtls/crypto/crypto.h"
@ -219,6 +219,55 @@ STATIC const mp_obj_type_t uhashlib_sha1_type = {
};
#endif
#if MICROPY_PY_UHASHLIB_MD5
STATIC mp_obj_t uhashlib_md5_update(mp_obj_t self_in, mp_obj_t arg);
#if MICROPY_SSL_AXTLS
STATIC mp_obj_t uhashlib_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 = m_new_obj_var(mp_obj_hash_t, char, sizeof(MD5_CTX));
o->base.type = type;
MD5_Init((MD5_CTX*)o->state);
if (n_args == 1) {
uhashlib_md5_update(MP_OBJ_FROM_PTR(o), args[0]);
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t uhashlib_md5_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);
MD5_Update((MD5_CTX*)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
STATIC mp_obj_t uhashlib_md5_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
vstr_t vstr;
vstr_init_len(&vstr, MD5_SIZE);
MD5_Final((byte*)vstr.buf, (MD5_CTX*)self->state);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif // MICROPY_SSL_AXTLS
STATIC MP_DEFINE_CONST_FUN_OBJ_2(uhashlib_md5_update_obj, uhashlib_md5_update);
STATIC MP_DEFINE_CONST_FUN_OBJ_1(uhashlib_md5_digest_obj, uhashlib_md5_digest);
STATIC const mp_rom_map_elem_t uhashlib_md5_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&uhashlib_md5_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&uhashlib_md5_digest_obj) },
};
STATIC MP_DEFINE_CONST_DICT(uhashlib_md5_locals_dict, uhashlib_md5_locals_dict_table);
STATIC const mp_obj_type_t uhashlib_md5_type = {
{ &mp_type_type },
.name = MP_QSTR_md5,
.make_new = uhashlib_md5_make_new,
.locals_dict = (void*)&uhashlib_md5_locals_dict,
};
#endif // MICROPY_PY_UHASHLIB_MD5
STATIC const mp_rom_map_elem_t mp_module_uhashlib_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_uhashlib) },
#if MICROPY_PY_UHASHLIB_SHA256
@ -227,6 +276,9 @@ STATIC const mp_rom_map_elem_t mp_module_uhashlib_globals_table[] = {
#if MICROPY_PY_UHASHLIB_SHA1
{ MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&uhashlib_sha1_type) },
#endif
#if MICROPY_PY_UHASHLIB_MD5
{ MP_ROM_QSTR(MP_QSTR_md5), MP_ROM_PTR(&uhashlib_md5_type) },
#endif
};
STATIC MP_DEFINE_CONST_DICT(mp_module_uhashlib_globals, mp_module_uhashlib_globals_table);

4
py/mpconfig.h
View File

@ -1172,6 +1172,10 @@ typedef double mp_float_t;
#define MICROPY_PY_UHASHLIB (0)
#endif
#ifndef MICROPY_PY_UHASHLIB_MD5
#define MICROPY_PY_UHASHLIB_MD5 (0)
#endif
#ifndef MICROPY_PY_UHASHLIB_SHA1
#define MICROPY_PY_UHASHLIB_SHA1 (0)
#endif