1 files changed, 142 insertions, 0 deletions
diff --git a/ports/esp32/moduhashlib.c b/ports/esp32/moduhashlib.c
new file mode 100644
index 000000000..6f67aa7d9
--- /dev/null
+++ b/ports/esp32/moduhashlib.c
@@ -0,0 +1,142 @@
+/*
+ * This file is part of the Micro Python 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 "py/runtime.h"
+
+#include "mbedtls/sha256.h"
+#include "mbedtls/sha1.h"
+
+union sha_ctxs {
+        mbedtls_sha256_context sha256;
+        mbedtls_sha1_context sha1;
+};
+typedef struct _mp_obj_hash_t {
+    mp_obj_base_t base;
+    union sha_ctxs state;
+} mp_obj_hash_t;
+
+STATIC mp_obj_t sha256_update(mp_obj_t self_in, mp_obj_t arg);
+STATIC mp_obj_t sha1_update(mp_obj_t self_in, mp_obj_t arg);
+
+STATIC mp_obj_t 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(union sha_ctxs));
+    o->base.type = type;
+    mbedtls_sha256_init(&o->state.sha256);
+    if (n_args == 1) {
+        sha256_update(MP_OBJ_FROM_PTR(o), args[0]);
+    }
+    return MP_OBJ_FROM_PTR(o);
+}
+
+STATIC mp_obj_t 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(union sha_ctxs));
+    o->base.type = type;
+    mbedtls_sha1_init(&o->state.sha1);
+    if (n_args == 1) {
+        sha1_update(MP_OBJ_FROM_PTR(o), args[0]);
+    }
+    return MP_OBJ_FROM_PTR(o);
+}
+
+STATIC mp_obj_t 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(&self->state.sha256, bufinfo.buf, bufinfo.len);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(sha256_update_obj, sha256_update);
+
+STATIC mp_obj_t 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(&self->state.sha1, bufinfo.buf, bufinfo.len);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(sha1_update_obj, sha1_update);
+
+STATIC mp_obj_t 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(&self->state.sha256, (unsigned char *)vstr.buf);
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(sha256_digest_obj, sha256_digest);
+
+STATIC mp_obj_t 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(&self->state.sha1, (unsigned char *)vstr.buf);
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(sha1_digest_obj, sha1_digest);
+
+STATIC const mp_rom_map_elem_t sha256_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&sha256_update_obj) },
+    { MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&sha256_digest_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(sha256_locals_dict, sha256_locals_dict_table);
+
+STATIC const mp_obj_type_t sha256_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_sha256,
+    .make_new = sha256_make_new,
+    .locals_dict = (void*)&sha256_locals_dict,
+};
+
+STATIC const mp_rom_map_elem_t sha1_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&sha1_update_obj) },
+    { MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&sha1_digest_obj) },
+};
+STATIC MP_DEFINE_CONST_DICT(sha1_locals_dict, sha1_locals_dict_table);
+
+STATIC const mp_obj_type_t sha1_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_sha1,
+    .make_new = sha1_make_new,
+    .locals_dict = (void*)&sha1_locals_dict,
+};
+
+STATIC const mp_rom_map_elem_t mp_module_hashlib_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_uhashlib) },
+    { MP_ROM_QSTR(MP_QSTR_sha256), MP_ROM_PTR(&sha256_type) },
+    { MP_ROM_QSTR(MP_QSTR_sha1), MP_ROM_PTR(&sha1_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(mp_module_hashlib_globals,
+    mp_module_hashlib_globals_table);
+
+const mp_obj_module_t mp_module_uhashlib = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t*)&mp_module_hashlib_globals,
+};