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extmod/moduhashlib: Allow using the sha256 implementation of mbedTLS.

This commit is contained in:
Yonatan Goldschmidt 2018-06-09 03:00:21 +03:00 committed by Damien George
parent 6630354ffe
commit 6963ee9075
1 changed files with 41 additions and 1 deletions
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42
extmod/moduhashlib.c
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@ -32,9 +32,15 @@
#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
@ -55,6 +61,38 @@ typedef struct _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 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));
@ -73,7 +111,6 @@ STATIC mp_obj_t uhashlib_sha256_update(mp_obj_t self_in, mp_obj_t arg) {
sha256_update((CRYAL_SHA256_CTX*)self->state, bufinfo.buf, bufinfo.len);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(uhashlib_sha256_update_obj, uhashlib_sha256_update);
STATIC mp_obj_t uhashlib_sha256_digest(mp_obj_t self_in) {
mp_obj_hash_t *self = MP_OBJ_TO_PTR(self_in);
@ -82,6 +119,9 @@ STATIC mp_obj_t uhashlib_sha256_digest(mp_obj_t self_in) {
sha256_final((CRYAL_SHA256_CTX*)self->state, (byte*)vstr.buf);
return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif
MP_DEFINE_CONST_FUN_OBJ_2(uhashlib_sha256_update_obj, uhashlib_sha256_update);
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[] = {