src/libpts/tcg/tcg_pts_attr_dh_nonce_params_req.h

   1 /*
   2  * Copyright (C) 2011 Sansar Choinyambuu
   3  * HSR Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 /**
  17  * @defgroup tcg_pts_attr_dh_nonce_params_req tcg_pts_attr_dh_nonce_params_req
  18  * @{ @ingroup tcg_pts_attr_dh_nonce_params_req
  19  */
  20
  21 #ifndef TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_
  22 #define TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_
  23
  24 typedef struct tcg_pts_attr_dh_nonce_params_req_t tcg_pts_attr_dh_nonce_params_req_t;
  25 typedef enum pts_dh_group_t pts_dh_group_t;
  26
  27 #include "tcg_attr.h"
  28 #include "pa_tnc/pa_tnc_attr.h"
  29
  30 /**
  31  * PTS Diffie Hellman Group Values
  32  */
  33 enum pts_dh_group_t {
  34         /** IKE Group 2 */
  35         PTS_DH_GROUP_IKE2 =                                      (1<<15),
  36         /** IKE Group 5 */
  37         PTS_DH_GROUP_IKE5 =                                      (1<<14),
  38         /** IKE Group 14 */
  39         PTS_DH_GROUP_IKE14 =                             (1<<13),
  40         /** IKE Group 19, Elliptic curves using NIST 256 bit prime modules */
  41         PTS_DH_GROUP_IKE19 =                             (1<<12),
  42         /** IKE Group 20, Elliptic curves using NIST 384 bit prime modules */
  43         PTS_DH_GROUP_IKE20 =                             (1<<11),
  44 };
  45
  46 /**
  47  * Class implementing the TCG PTS DH Nonce Parameters Request Attribute
  48  */
  49 struct tcg_pts_attr_dh_nonce_params_req_t {
  50
  51         /**
  52          * Public PA-TNC attribute interface
  53          */
  54         pa_tnc_attr_t pa_tnc_attribute;
  55
  56         /**
  57          * Get Minimum nonce length
  58          *
  59          * @return                              Minimum acceptable length of nonce
  60          */
  61         u_int8_t (*get_min_nonce_len)(tcg_pts_attr_dh_nonce_params_req_t *this);
  62
  63         /**
  64          * Get supported Diffie Hellman Groups
  65          *
  66          * @return                              Supported Diffie Hellman Groups
  67          */
  68         pts_dh_group_t (*get_dh_groups)(tcg_pts_attr_dh_nonce_params_req_t *this);
  69 };
  70
  71 /**
  72  * Creates an tcg_pts_attr_dh_nonce_params_req_t object
  73  *
  74  * @param min_nonce_len                         Minimum acceptable length of nonce
  75  * @param dh_groups                                     Initiator's supported DH groups
  76  */
  77 pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create(u_int8_t min_nonce_len,
  78                                                                                                 pts_dh_group_t dh_groups);
  79
  80 /**
  81  * Creates an tcg_pts_attr_dh_nonce_params_req_t object from received data
  82  *
  83  * @param value                                         unparsed attribute value
  84  */
  85 pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create_from_data(chunk_t value);
  86
  87 #endif /** TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_ @}*/