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extmod/moduhashlib: Add md5 implementation using mbedtls.

This commit is contained in:
Damien George 2018-09-12 16:08:53 +10:00
parent 87d45f4d49
commit 05959c6465
1 changed files with 39 additions and 0 deletions
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39
extmod/moduhashlib.c
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@ -52,6 +52,7 @@
#endif
#if MICROPY_SSL_MBEDTLS
#include "mbedtls/md5.h"
#include "mbedtls/sha1.h"
#endif
@ -268,6 +269,44 @@ STATIC mp_obj_t uhashlib_md5_digest(mp_obj_t self_in) {
}
#endif // MICROPY_SSL_AXTLS
#if MICROPY_SSL_MBEDTLS
#if MBEDTLS_VERSION_NUMBER < 0x02070000
#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 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(mbedtls_md5_context));
o->base.type = type;
mbedtls_md5_init((mbedtls_md5_context*)o->state);
mbedtls_md5_starts_ret((mbedtls_md5_context*)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);
mbedtls_md5_update_ret((mbedtls_md5_context*)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, 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_str_from_vstr(&mp_type_bytes, &vstr);
}
#endif // MICROPY_SSL_MBEDTLS
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);