Line data    Source code

       1              : /**
       2              :  *  Copyright Notice:
       3              :  *  Copyright 2021-2026 DMTF. All rights reserved.
       4              :  *  License: BSD 3-Clause License. For full text see link: https://github.com/DMTF/libspdm/blob/main/LICENSE.md
       5              :  **/
       6              : 
       7              : #include "internal/libspdm_secured_message_lib.h"
       8              : 
       9          102 : void *libspdm_secured_message_dhe_new(spdm_version_number_t spdm_version,
      10              :                                       uint16_t dhe_named_group, bool is_initiator)
      11              : {
      12          102 :     return libspdm_dhe_new(spdm_version, dhe_named_group, is_initiator);
      13              : }
      14              : 
      15          102 : void libspdm_secured_message_dhe_free(uint16_t dhe_named_group, void *dhe_context)
      16              : {
      17          102 :     libspdm_dhe_free(dhe_named_group, dhe_context);
      18          102 : }
      19              : 
      20          102 : bool libspdm_secured_message_dhe_generate_key(uint16_t dhe_named_group,
      21              :                                               void *dhe_context,
      22              :                                               uint8_t *public_key,
      23              :                                               size_t *public_key_size)
      24              : {
      25          102 :     return libspdm_dhe_generate_key(dhe_named_group, dhe_context, public_key, public_key_size);
      26              : }
      27              : 
      28           31 : bool libspdm_secured_message_dhe_compute_key(
      29              :     uint16_t dhe_named_group, void *dhe_context,
      30              :     const uint8_t *peer_public, size_t peer_public_size,
      31              :     void *spdm_secured_message_context)
      32              : {
      33              :     libspdm_secured_message_context_t *secured_message_context;
      34              :     uint8_t final_key[LIBSPDM_MAX_DHE_SS_SIZE];
      35              :     size_t final_key_size;
      36              :     bool ret;
      37              : 
      38           31 :     secured_message_context = spdm_secured_message_context;
      39              : 
      40           31 :     final_key_size = sizeof(final_key);
      41           31 :     ret = libspdm_dhe_compute_key(dhe_named_group, dhe_context, peer_public,
      42              :                                   peer_public_size, final_key,
      43              :                                   &final_key_size);
      44           31 :     if (!ret) {
      45            0 :         return ret;
      46              :     }
      47           31 :     libspdm_copy_mem(secured_message_context->master_secret.shared_secret,
      48              :                      sizeof(secured_message_context->master_secret.shared_secret),
      49              :                      final_key, final_key_size);
      50           31 :     libspdm_zero_mem(final_key, final_key_size);
      51           31 :     secured_message_context->shared_key_size = final_key_size;
      52           31 :     return true;
      53              : }