Implemented Diffie Hellman Nonce attributes

This commit is contained in:
Sansar Choinyambuu
2011-11-28 14:34:20 +01:00
committed by Andreas Steffen
parent 4ec5d26fdf
commit 9a49d2e065
10 changed files with 1081 additions and 3 deletions
@@ -26,6 +26,9 @@
#include <pts/pts_error.h>
#include <tcg/tcg_pts_attr_proto_caps.h>
#include <tcg/tcg_pts_attr_dh_nonce_params_req.h>
#include <tcg/tcg_pts_attr_dh_nonce_params_resp.h>
#include <tcg/tcg_pts_attr_dh_nonce_finish.h>
#include <tcg/tcg_pts_attr_meas_algo.h>
#include <tcg/tcg_pts_attr_get_tpm_version_info.h>
#include <tcg/tcg_pts_attr_tpm_version_info.h>
@@ -29,6 +29,9 @@
#include <tcg/tcg_attr.h>
#include <tcg/tcg_pts_attr_proto_caps.h>
#include <tcg/tcg_pts_attr_dh_nonce_params_req.h>
#include <tcg/tcg_pts_attr_dh_nonce_params_resp.h>
#include <tcg/tcg_pts_attr_dh_nonce_finish.h>
#include <tcg/tcg_pts_attr_meas_algo.h>
#include <tcg/tcg_pts_attr_get_tpm_version_info.h>
#include <tcg/tcg_pts_attr_tpm_version_info.h>
+4
View File
@@ -17,6 +17,9 @@ libpts_la_SOURCES = \
pts/pts_meas_algo.h pts/pts_meas_algo.c \
tcg/tcg_attr.h tcg/tcg_attr.c \
tcg/tcg_pts_attr_proto_caps.h tcg/tcg_pts_attr_proto_caps.c \
tcg/tcg_pts_attr_dh_nonce_params_req.h tcg/tcg_pts_attr_dh_nonce_params_req.c \
tcg/tcg_pts_attr_dh_nonce_params_resp.h tcg/tcg_pts_attr_dh_nonce_params_resp.c \
tcg/tcg_pts_attr_dh_nonce_finish.h tcg/tcg_pts_attr_dh_nonce_finish.c \
tcg/tcg_pts_attr_meas_algo.h tcg/tcg_pts_attr_meas_algo.c \
tcg/tcg_pts_attr_get_tpm_version_info.h tcg/tcg_pts_attr_get_tpm_version_info.c \
tcg/tcg_pts_attr_tpm_version_info.h tcg/tcg_pts_attr_tpm_version_info.c \
@@ -30,3 +33,4 @@ libpts_la_SOURCES = \
tcg/tcg_pts_attr_file_meas.h tcg/tcg_pts_attr_file_meas.c \
tcg/tcg_pts_attr_req_file_meta.h tcg/tcg_pts_attr_req_file_meta.c \
tcg/tcg_pts_attr_unix_file_meta.h tcg/tcg_pts_attr_unix_file_meta.c
+9 -3
View File
@@ -14,6 +14,9 @@
#include "tcg_attr.h"
#include "tcg/tcg_pts_attr_proto_caps.h"
#include "tcg/tcg_pts_attr_dh_nonce_params_req.h"
#include "tcg/tcg_pts_attr_dh_nonce_params_resp.h"
#include "tcg/tcg_pts_attr_dh_nonce_finish.h"
#include "tcg/tcg_pts_attr_meas_algo.h"
#include "tcg/tcg_pts_attr_get_tpm_version_info.h"
#include "tcg/tcg_pts_attr_tpm_version_info.h"
@@ -156,6 +159,12 @@ pa_tnc_attr_t* tcg_attr_create_from_data(u_int32_t type, chunk_t value)
return tcg_pts_attr_proto_caps_create_from_data(value, TRUE);
case TCG_PTS_PROTO_CAPS:
return tcg_pts_attr_proto_caps_create_from_data(value, FALSE);
case TCG_PTS_DH_NONCE_PARAMS_REQ:
return tcg_pts_attr_dh_nonce_params_req_create(value);
case TCG_PTS_DH_NONCE_PARAMS_RESP:
return tcg_pts_attr_dh_nonce_params_resp_create(value);
case TCG_PTS_DH_NONCE_FINISH:
return tcg_pts_attr_dh_nonce_finish_create(value);
case TCG_PTS_MEAS_ALGO:
return tcg_pts_attr_meas_algo_create_from_data(value, FALSE);
case TCG_PTS_MEAS_ALGO_SELECTION:
@@ -184,9 +193,6 @@ pa_tnc_attr_t* tcg_attr_create_from_data(u_int32_t type, chunk_t value)
return tcg_pts_attr_req_file_meta_create_from_data(value);
case TCG_PTS_UNIX_FILE_META:
return tcg_pts_attr_unix_file_meta_create_from_data(value);
case TCG_PTS_DH_NONCE_PARAMS_REQ:
case TCG_PTS_DH_NONCE_PARAMS_RESP:
case TCG_PTS_DH_NONCE_FINISH:
case TCG_PTS_REQ_TEMPL_REF_MANI_SET_META:
case TCG_PTS_TEMPL_REF_MANI_SET_META:
case TCG_PTS_UPDATE_TEMPL_REF_MANI:
@@ -0,0 +1,269 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "tcg_pts_attr_dh_nonce_finish.h"
#include <pa_tnc/pa_tnc_msg.h>
#include <bio/bio_writer.h>
#include <bio/bio_reader.h>
#include <debug.h>
typedef struct private_tcg_pts_attr_dh_nonce_finish_t private_tcg_pts_attr_dh_nonce_finish_t;
/**
* PTS DH Nonce Finish
* see section 3.8.3 of PTS Protocol: Binding to TNC IF-M Specification
*
* 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Reserved | Nonce Len | Selected Hash Algorithm |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | D-H Initiator Public Value ... |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | D-H Initiator Nonce ... |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
#define PTS_DH_NONCE_FINISH_SIZE 12
#define PTS_DH_NONCE_FINISH_RESERVED 0x00
/**
* Private data of an tcg_pts_attr_dh_nonce_finish_t object.
*/
struct private_tcg_pts_attr_dh_nonce_finish_t {
/**
* Public members of tcg_pts_attr_dh_nonce_finish_t
*/
tcg_pts_attr_dh_nonce_finish_t public;
/**
* Attribute vendor ID
*/
pen_t vendor_id;
/**
* Attribute type
*/
u_int32_t type;
/**
* Attribute value
*/
chunk_t value;
/**
* Noskip flag
*/
bool noskip_flag;
/**
* Length of nonce
*/
u_int8_t nonce_len;
/**
* Selected Hashing Algorithm
*/
pts_meas_algorithms_t hash_algo;
/**
* DH Initiator Public Value
*/
chunk_t initiator_pub_val;
/**
* DH Initiator Nonce
*/
chunk_t initiator_nonce;
};
METHOD(pa_tnc_attr_t, get_vendor_id, pen_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->vendor_id;
}
METHOD(pa_tnc_attr_t, get_type, u_int32_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->type;
}
METHOD(pa_tnc_attr_t, get_value, chunk_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->value;
}
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->noskip_flag;
}
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
private_tcg_pts_attr_dh_nonce_finish_t *this, bool noskip)
{
this->noskip_flag = noskip;
}
METHOD(pa_tnc_attr_t, build, void,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
bio_writer_t *writer;
writer = bio_writer_create(PTS_DH_NONCE_FINISH_SIZE);
writer->write_uint8 (writer, PTS_DH_NONCE_FINISH_RESERVED);
writer->write_uint8 (writer, this->nonce_len);
writer->write_uint16(writer, this->hash_algo);
writer->write_data (writer, this->initiator_pub_val);
writer->write_data (writer, this->initiator_nonce);
this->value = chunk_clone(writer->get_buf(writer));
writer->destroy(writer);
}
METHOD(pa_tnc_attr_t, process, status_t,
private_tcg_pts_attr_dh_nonce_finish_t *this, u_int32_t *offset)
{
bio_reader_t *reader;
u_int8_t reserved;
u_int16_t hash_algo;
if (this->value.len < PTS_DH_NONCE_FINISH_SIZE)
{
DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Finish");
*offset = 0;
return FAILED;
}
reader = bio_reader_create(this->value);
reader->read_uint8 (reader, &reserved);
reader->read_uint8 (reader, &this->nonce_len);
reader->read_uint16(reader, &hash_algo);
this->hash_algo = hash_algo;
reader->read_data(reader, reader->remaining(reader) - this->nonce_len,
&this->initiator_pub_val);
reader->read_data(reader, this->nonce_len, &this->initiator_nonce);
reader->destroy(reader);
return SUCCESS;
}
METHOD(pa_tnc_attr_t, destroy, void,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
free(this->value.ptr);
free(this->initiator_pub_val.ptr);
free(this->initiator_nonce.ptr);
free(this);
}
METHOD(tcg_pts_attr_dh_nonce_finish_t, get_nonce_len, u_int8_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->nonce_len;
}
METHOD(tcg_pts_attr_dh_nonce_finish_t, get_hash_algo, pts_meas_algorithms_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->hash_algo;
}
METHOD(tcg_pts_attr_dh_nonce_finish_t, get_initiator_pub_val, chunk_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->initiator_pub_val;
}
METHOD(tcg_pts_attr_dh_nonce_finish_t, get_initiator_nonce, chunk_t,
private_tcg_pts_attr_dh_nonce_finish_t *this)
{
return this->initiator_nonce;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_finish_create(u_int8_t nonce_len,
pts_meas_algorithms_t hash_algo,
chunk_t initiator_nonce,
chunk_t initiator_pub_val)
{
private_tcg_pts_attr_dh_nonce_finish_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_nonce_len = _get_nonce_len,
.get_hash_algo = _get_hash_algo,
.get_initiator_nonce = _get_initiator_nonce,
.get_initiator_pub_val = _get_initiator_pub_val,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_FINISH,
.nonce_len = nonce_len,
.hash_algo = hash_algo,
.initiator_nonce = initiator_nonce,
.initiator_pub_val = initiator_pub_val,
);
return &this->public.pa_tnc_attribute;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_finish_create_from_data(chunk_t value)
{
private_tcg_pts_attr_dh_nonce_finish_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_nonce_len = _get_nonce_len,
.get_hash_algo = _get_hash_algo,
.get_initiator_nonce = _get_initiator_nonce,
.get_initiator_pub_val = _get_initiator_pub_val,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_FINISH,
.value = chunk_clone(value),
);
return &this->public.pa_tnc_attribute;
}
@@ -0,0 +1,90 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup tcg_pts_attr_dh_nonce_finish tcg_pts_attr_dh_nonce_finish
* @{ @ingroup tcg_pts_attr_dh_nonce_finish
*/
#ifndef TCG_PTS_ATTR_DH_NONCE_FINISH_H_
#define TCG_PTS_ATTR_DH_NONCE_FINISH_H_
typedef struct tcg_pts_attr_dh_nonce_finish_t tcg_pts_attr_dh_nonce_finish_t;
#include "tcg_attr.h"
#include "pa_tnc/pa_tnc_attr.h"
#include "pts/pts_meas_algo.h"
/**
* Class implementing the TCG PTS DH Nonce Finish Attribute
*/
struct tcg_pts_attr_dh_nonce_finish_t {
/**
* Public PA-TNC attribute interface
*/
pa_tnc_attr_t pa_tnc_attribute;
/**
* Get nonce length
*
* @return Length of nonce
*/
u_int8_t (*get_nonce_len)(tcg_pts_attr_dh_nonce_finish_t *this);
/**
* Get selected hash algorithm
*
* @return Selected hash algorithm
*/
pts_meas_algorithms_t (*get_hash_algo)(tcg_pts_attr_dh_nonce_finish_t *this);
/**
* Get DH Initiator Public Value
*
* @return DH Initiator Public Value
*/
chunk_t (*get_initiator_pub_val)(tcg_pts_attr_dh_nonce_finish_t *this);
/**
* Get DH Initiator Nonce
*
* @return DH Initiator Nonce
*/
chunk_t (*get_initiator_nonce)(tcg_pts_attr_dh_nonce_finish_t *this);
};
/**
* Creates an tcg_pts_attr_dh_nonce_finish_t object
*
* @param nonce_len Length of nonce
* @param hash_algo Selected hash algorithm
* @param initiator_nonce DH Initiator Nonce
* @param initiator_pub_val DH Initiator Public value
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_finish_create(u_int8_t nonce_len,
pts_meas_algorithms_t hash_algo,
chunk_t initiator_nonce,
chunk_t initiator_pub_val);
/**
* Creates an tcg_pts_attr_dh_nonce_finish_t object from received data
*
* @param value unparsed attribute value
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_finish_create_from_data(chunk_t value);
#endif /** TCG_PTS_ATTR_DH_NONCE_FINISH_H_ @}*/
@@ -0,0 +1,228 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "tcg_pts_attr_dh_nonce_params_req.h"
#include <pa_tnc/pa_tnc_msg.h>
#include <bio/bio_writer.h>
#include <bio/bio_reader.h>
#include <debug.h>
typedef struct private_tcg_pts_attr_dh_nonce_params_req_t private_tcg_pts_attr_dh_nonce_params_req_t;
/**
* PTS DH Nonce Parameters Request
* see section 3.8.1 of PTS Protocol: Binding to TNC IF-M Specification
*
* 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Reserved | Min. Nonce Len | D-H Group Set |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
#define PTS_DH_NONCE_PARAMS_REQ_SIZE 4
#define PTS_DH_NONCE_PARAMS_REQ_RESERVED 0x00
/**
* Private data of an tcg_pts_attr_dh_nonce_params_req_t object.
*/
struct private_tcg_pts_attr_dh_nonce_params_req_t {
/**
* Public members of tcg_pts_attr_dh_nonce_params_req_t
*/
tcg_pts_attr_dh_nonce_params_req_t public;
/**
* Attribute vendor ID
*/
pen_t vendor_id;
/**
* Attribute type
*/
u_int32_t type;
/**
* Attribute value
*/
chunk_t value;
/**
* Noskip flag
*/
bool noskip_flag;
/**
* Minimum acceptable length of nonce
*/
u_int8_t min_nonce_len;
/**
* Diffie Hellman group set
*/
pts_dh_group_t dh_groups;
};
METHOD(pa_tnc_attr_t, get_vendor_id, pen_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->vendor_id;
}
METHOD(pa_tnc_attr_t, get_type, u_int32_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->type;
}
METHOD(pa_tnc_attr_t, get_value, chunk_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->value;
}
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->noskip_flag;
}
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
private_tcg_pts_attr_dh_nonce_params_req_t *this, bool noskip)
{
this->noskip_flag = noskip;
}
METHOD(pa_tnc_attr_t, build, void,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
bio_writer_t *writer;
writer = bio_writer_create(PTS_DH_NONCE_PARAMS_REQ_SIZE);
writer->write_uint8(writer, PTS_DH_NONCE_PARAMS_REQ_RESERVED);
writer->write_uint8(writer, this->min_nonce_len);
writer->write_uint8(writer, this->dh_groups);
this->value = chunk_clone(writer->get_buf(writer));
writer->destroy(writer);
}
METHOD(pa_tnc_attr_t, process, status_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this, u_int32_t *offset)
{
bio_reader_t *reader;
u_int8_t reserved;
u_int16_t dh_groups;
if (this->value.len < PTS_DH_NONCE_PARAMS_REQ_SIZE)
{
DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Parameters Request");
*offset = 0;
return FAILED;
}
reader = bio_reader_create(this->value);
reader->read_uint8(reader, &reserved);
reader->read_uint8(reader, &this->min_nonce_len);
reader->read_uint16(reader, &dh_groups);
this->dh_groups = dh_groups;
reader->destroy(reader);
return SUCCESS;
}
METHOD(pa_tnc_attr_t, destroy, void,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
free(this->value.ptr);
free(this);
}
METHOD(tcg_pts_attr_dh_nonce_params_req_t, get_min_nonce_len, u_int8_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->min_nonce_len;
}
METHOD(tcg_pts_attr_dh_nonce_params_req_t, get_dh_groups, pts_dh_group_t,
private_tcg_pts_attr_dh_nonce_params_req_t *this)
{
return this->dh_groups;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_req_create(u_int8_t min_nonce_len,
pts_dh_group_t dh_groups)
{
private_tcg_pts_attr_dh_nonce_params_req_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_min_nonce_len = _get_min_nonce_len,
.get_dh_groups = _get_dh_groups,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_PARAMS_REQ,
.min_nonce_len = min_nonce_len,
.dh_groups = dh_groups,
);
return &this->public.pa_tnc_attribute;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_req_create_from_data(chunk_t value)
{
private_tcg_pts_attr_dh_nonce_params_req_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_min_nonce_len = _get_min_nonce_len,
.get_dh_groups = _get_dh_groups,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_PARAMS_REQ,
.value = chunk_clone(value),
);
return &this->public.pa_tnc_attribute;
}
@@ -0,0 +1,87 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup tcg_pts_attr_dh_nonce_params_req tcg_pts_attr_dh_nonce_params_req
* @{ @ingroup tcg_pts_attr_dh_nonce_params_req
*/
#ifndef TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_
#define TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_
typedef struct tcg_pts_attr_dh_nonce_params_req_t tcg_pts_attr_dh_nonce_params_req_t;
typedef enum pts_dh_group_t pts_dh_group_t;
#include "tcg_attr.h"
#include "pa_tnc/pa_tnc_attr.h"
/**
* PTS Diffie Hellman Group Values
*/
enum pts_dh_group_t {
/** IKE Group 2 */
PTS_DH_GROUP_IKE2 = (1<<15),
/** IKE Group 5 */
PTS_DH_GROUP_IKE5 = (1<<14),
/** IKE Group 14 */
PTS_DH_GROUP_IKE14 = (1<<13),
/** IKE Group 19, Elliptic curves using NIST 256 bit prime modules */
PTS_DH_GROUP_IKE19 = (1<<12),
/** IKE Group 20, Elliptic curves using NIST 384 bit prime modules */
PTS_DH_GROUP_IKE20 = (1<<11),
};
/**
* Class implementing the TCG PTS DH Nonce Parameters Request Attribute
*/
struct tcg_pts_attr_dh_nonce_params_req_t {
/**
* Public PA-TNC attribute interface
*/
pa_tnc_attr_t pa_tnc_attribute;
/**
* Get Minimum nonce length
*
* @return Minimum acceptable length of nonce
*/
u_int8_t (*get_min_nonce_len)(tcg_pts_attr_dh_nonce_params_req_t *this);
/**
* Get supported Diffie Hellman Groups
*
* @return Supported Diffie Hellman Groups
*/
pts_dh_group_t (*get_dh_groups)(tcg_pts_attr_dh_nonce_params_req_t *this);
};
/**
* Creates an tcg_pts_attr_dh_nonce_params_req_t object
*
* @param min_nonce_len Minimum acceptable length of nonce
* @param dh_groups Initiator's supported DH groups
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create(u_int8_t min_nonce_len,
pts_dh_group_t dh_groups);
/**
* Creates an tcg_pts_attr_dh_nonce_params_req_t object from received data
*
* @param value unparsed attribute value
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create_from_data(chunk_t value);
#endif /** TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_ @}*/
@@ -0,0 +1,288 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "tcg_pts_attr_dh_nonce_params_resp.h"
#include <pa_tnc/pa_tnc_msg.h>
#include <bio/bio_writer.h>
#include <bio/bio_reader.h>
#include <debug.h>
typedef struct private_tcg_pts_attr_dh_nonce_params_resp_t private_tcg_pts_attr_dh_nonce_params_resp_t;
/**
* PTS DH Nonce Parameters Response
* see section 3.8.2 of PTS Protocol: Binding to TNC IF-M Specification
*
* 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Reserved | Nonce Len |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Selected D-H Group | Hash Algorithm Set |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | D-H Responder Nonce ... |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | D-H Responder Public Value ... |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
#define PTS_DH_NONCE_PARAMS_RESP_SIZE 16
#define PTS_DH_NONCE_PARAMS_RESP_RESERVED 0x0000
/**
* Private data of an tcg_pts_attr_dh_nonce_params_resp_t object.
*/
struct private_tcg_pts_attr_dh_nonce_params_resp_t {
/**
* Public members of tcg_pts_attr_dh_nonce_params_resp_t
*/
tcg_pts_attr_dh_nonce_params_resp_t public;
/**
* Attribute vendor ID
*/
pen_t vendor_id;
/**
* Attribute type
*/
u_int32_t type;
/**
* Attribute value
*/
chunk_t value;
/**
* Noskip flag
*/
bool noskip_flag;
/**
* Length of nonce
*/
u_int8_t nonce_len;
/**
* Selected Diffie Hellman group
*/
pts_dh_group_t dh_group;
/**
* Supported Hashing Algorithms
*/
pts_meas_algorithms_t hash_algo_set;
/**
* DH Responder Nonce
*/
chunk_t responder_nonce;
/**
* DH Responder Public Value
*/
chunk_t responder_pub_val;
};
METHOD(pa_tnc_attr_t, get_vendor_id, pen_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->vendor_id;
}
METHOD(pa_tnc_attr_t, get_type, u_int32_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->type;
}
METHOD(pa_tnc_attr_t, get_value, chunk_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->value;
}
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->noskip_flag;
}
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
private_tcg_pts_attr_dh_nonce_params_resp_t *this, bool noskip)
{
this->noskip_flag = noskip;
}
METHOD(pa_tnc_attr_t, build, void,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
bio_writer_t *writer;
writer = bio_writer_create(PTS_DH_NONCE_PARAMS_RESP_SIZE);
writer->write_uint24(writer, PTS_DH_NONCE_PARAMS_RESP_RESERVED);
writer->write_uint8 (writer, this->nonce_len);
writer->write_uint16(writer, this->dh_group);
writer->write_uint16(writer, this->hash_algo_set);
writer->write_data (writer, this->responder_nonce);
writer->write_data (writer, this->responder_pub_val);
this->value = chunk_clone(writer->get_buf(writer));
writer->destroy(writer);
}
METHOD(pa_tnc_attr_t, process, status_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this, u_int32_t *offset)
{
bio_reader_t *reader;
u_int32_t reserved;
u_int16_t dh_group, hash_algo_set;
if (this->value.len < PTS_DH_NONCE_PARAMS_RESP_SIZE)
{
DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Parameters Response");
*offset = 0;
return FAILED;
}
reader = bio_reader_create(this->value);
reader->read_uint24(reader, &reserved);
reader->read_uint8 (reader, &this->nonce_len);
reader->read_uint16(reader, &dh_group);
this->dh_group = dh_group;
reader->read_uint16(reader, &hash_algo_set);
this->hash_algo_set = hash_algo_set;
reader->read_data(reader, this->nonce_len, &this->responder_nonce);
reader->read_data(reader, reader->remaining(reader), &this->responder_pub_val);
reader->destroy(reader);
return SUCCESS;
}
METHOD(pa_tnc_attr_t, destroy, void,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
free(this->value.ptr);
free(this->responder_nonce.ptr);
free(this->responder_pub_val.ptr);
free(this);
}
METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_nonce_len, u_int8_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->nonce_len;
}
METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_dh_group, pts_dh_group_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->dh_group;
}
METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_hash_algo_set, pts_meas_algorithms_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->hash_algo_set;
}
METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_responder_nonce, chunk_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->responder_nonce;
}
METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_responder_pub_val, chunk_t,
private_tcg_pts_attr_dh_nonce_params_resp_t *this)
{
return this->responder_pub_val;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_resp_create(u_int8_t nonce_len,
pts_dh_group_t dh_group,
pts_meas_algorithms_t hash_algo_set,
chunk_t responder_nonce,
chunk_t responder_pub_val)
{
private_tcg_pts_attr_dh_nonce_params_resp_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_nonce_len = _get_nonce_len,
.get_dh_group = _get_dh_group,
.get_hash_algo_set = _get_hash_algo_set,
.get_responder_nonce = _get_responder_nonce,
.get_responder_pub_val = _get_responder_pub_val,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_PARAMS_RESP,
.nonce_len = nonce_len,
.dh_group = dh_group,
.hash_algo_set = hash_algo_set,
.responder_nonce = responder_nonce,
.responder_pub_val = responder_pub_val,
);
return &this->public.pa_tnc_attribute;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_resp_create_from_data(chunk_t value)
{
private_tcg_pts_attr_dh_nonce_params_resp_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_vendor_id = _get_vendor_id,
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.destroy = _destroy,
},
.get_nonce_len = _get_nonce_len,
.get_dh_group = _get_dh_group,
.get_hash_algo_set = _get_hash_algo_set,
.get_responder_nonce = _get_responder_nonce,
.get_responder_pub_val = _get_responder_pub_val,
},
.vendor_id = PEN_TCG,
.type = TCG_PTS_DH_NONCE_PARAMS_RESP,
.value = chunk_clone(value),
);
return &this->public.pa_tnc_attribute;
}
@@ -0,0 +1,100 @@
/*
* Copyright (C) 2011 Sansar Choinyambuu
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup tcg_pts_attr_dh_nonce_params_resp tcg_pts_attr_dh_nonce_params_resp
* @{ @ingroup tcg_pts_attr_dh_nonce_params_resp
*/
#ifndef TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_
#define TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_
typedef struct tcg_pts_attr_dh_nonce_params_resp_t tcg_pts_attr_dh_nonce_params_resp_t;
#include "tcg_attr.h"
#include "pa_tnc/pa_tnc_attr.h"
#include "tcg_pts_attr_dh_nonce_params_req.h"
#include "pts/pts_meas_algo.h"
/**
* Class implementing the TCG PTS DH Nonce Parameters Response Attribute
*/
struct tcg_pts_attr_dh_nonce_params_resp_t {
/**
* Public PA-TNC attribute interface
*/
pa_tnc_attr_t pa_tnc_attribute;
/**
* Get nonce length
*
* @return Length of nonce
*/
u_int8_t (*get_nonce_len)(tcg_pts_attr_dh_nonce_params_resp_t *this);
/**
* Get selected Diffie Hellman Group
*
* @return Selected Diffie Hellman Group
*/
pts_dh_group_t (*get_dh_group)(tcg_pts_attr_dh_nonce_params_resp_t *this);
/**
* Get supported hash algorithms
*
* @return Hash algorithm set
*/
pts_meas_algorithms_t (*get_hash_algo_set)(tcg_pts_attr_dh_nonce_params_resp_t *this);
/**
* Get DH Responder Nonce
*
* @return DH Responder Nonce
*/
chunk_t (*get_responder_nonce)(tcg_pts_attr_dh_nonce_params_resp_t *this);
/**
* Get DH Responder Public Value
*
* @return DH Responder Public Value
*/
chunk_t (*get_responder_pub_val)(tcg_pts_attr_dh_nonce_params_resp_t *this);
};
/**
* Creates an tcg_pts_attr_dh_nonce_params_resp_t object
*
* @param nonce_len Length of nonce
* @param dh_group Selected DH group
* @param hash_algo_set Set of supported hash algorithms
* @param responder_nonce DH Responder Nonce
* @param responder_pub_val DH Responder Public value
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_resp_create(u_int8_t nonce_len,
pts_dh_group_t dh_group,
pts_meas_algorithms_t hash_algo_set,
chunk_t responder_nonce,
chunk_t responder_pub_val);
/**
* Creates an tcg_pts_attr_dh_nonce_params_resp_t object from received data
*
* @param value unparsed attribute value
*/
pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_resp_create_from_data(chunk_t value);
#endif /** TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_ @}*/