#include <library.h>
#include <utils/backtrace.h>
#include <threading/thread.h>
+#include <sa/keymat.h>
#include "tkm.h"
#include "tkm_nonceg.h"
#include "tkm_diffie_hellman.h"
+#include "tkm_keymat.h"
/**
* PID file, in which charon-tkm stores its process id
lib->plugins->add_static_features(lib->plugins, "tkm-backend", features,
countof(features), TRUE);
+ /* register TKM keymat variant */
+ keymat_register_constructor(IKEV2, (keymat_constructor_t)tkm_keymat_create);
+
/* initialize daemon */
if (!charon->initialize(charon, PLUGINS))
{
--- /dev/null
+/*
+ * Copyrigth (C) 2012 Reto Buerki
+ * Copyright (C) 2012 Adrian-Ken Rueegsegger
+ * 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 <daemon.h>
+
+#include "tkm_keymat.h"
+
+typedef struct private_tkm_keymat_t private_tkm_keymat_t;
+
+/**
+ * Private data of a keymat_t object.
+ */
+struct private_tkm_keymat_t {
+
+ /**
+ * Public tkm_keymat_t interface.
+ */
+ tkm_keymat_t public;
+
+};
+
+METHOD(keymat_t, get_version, ike_version_t,
+ private_tkm_keymat_t *this)
+{
+ return IKEV2;
+}
+
+METHOD(keymat_t, create_dh, diffie_hellman_t*,
+ private_tkm_keymat_t *this, diffie_hellman_group_t group)
+{
+ return lib->crypto->create_dh(lib->crypto, group);
+}
+
+METHOD(keymat_t, create_nonce_gen, nonce_gen_t*,
+ private_tkm_keymat_t *this)
+{
+ return lib->crypto->create_nonce_gen(lib->crypto);
+}
+
+METHOD(tkm_keymat_t, derive_ike_keys, bool,
+ private_tkm_keymat_t *this, proposal_t *proposal, diffie_hellman_t *dh,
+ chunk_t nonce_i, chunk_t nonce_r, ike_sa_id_t *id,
+ pseudo_random_function_t rekey_function, chunk_t rekey_skd)
+{
+ DBG1(DBG_IKE, "deriving IKE keys");
+ return FALSE;
+}
+
+METHOD(tkm_keymat_t, derive_child_keys, bool,
+ private_tkm_keymat_t *this, proposal_t *proposal, diffie_hellman_t *dh,
+ chunk_t nonce_i, chunk_t nonce_r, chunk_t *encr_i, chunk_t *integ_i,
+ chunk_t *encr_r, chunk_t *integ_r)
+{
+ DBG1(DBG_CHD, "deriving child keys");
+ return FALSE;
+}
+
+METHOD(keymat_t, get_aead, aead_t*,
+ private_tkm_keymat_t *this, bool in)
+{
+ DBG1(DBG_IKE, "get_aead called");
+ return NULL;
+}
+
+METHOD(tkm_keymat_t, get_auth_octets, bool,
+ private_tkm_keymat_t *this, bool verify, chunk_t ike_sa_init,
+ chunk_t nonce, identification_t *id, char reserved[3], chunk_t *octets)
+{
+ DBG1(DBG_IKE, "returning auth octets");
+ return FALSE;
+}
+
+METHOD(tkm_keymat_t, get_skd, pseudo_random_function_t,
+ private_tkm_keymat_t *this, chunk_t *skd)
+{
+ DBG1(DBG_IKE, "returning skd");
+ return PRF_UNDEFINED;
+}
+
+METHOD(tkm_keymat_t, get_psk_sig, bool,
+ private_tkm_keymat_t *this, bool verify, chunk_t ike_sa_init, chunk_t nonce,
+ chunk_t secret, identification_t *id, char reserved[3], chunk_t *sig)
+{
+ DBG1(DBG_IKE, "returning PSK signature");
+ return FALSE;
+}
+
+METHOD(keymat_t, destroy, void,
+ private_tkm_keymat_t *this)
+{
+ free(this);
+}
+
+/**
+ * See header.
+ */
+tkm_keymat_t *tkm_keymat_create(bool initiator)
+{
+ private_tkm_keymat_t *this;
+
+ INIT(this,
+ .public = {
+ .keymat = {
+ .get_version = _get_version,
+ .create_dh = _create_dh,
+ .create_nonce_gen = _create_nonce_gen,
+ .get_aead = _get_aead,
+ .destroy = _destroy,
+ },
+ .derive_ike_keys = _derive_ike_keys,
+ .derive_child_keys = _derive_child_keys,
+ .get_skd = _get_skd,
+ .get_auth_octets = _get_auth_octets,
+ .get_psk_sig = _get_psk_sig,
+ },
+ );
+
+ return &this->public;
+}
--- /dev/null
+/*
+ * Copyright (C) 2012 Reto Buerki
+ * Copyright (C) 2012 Adrian-Ken Rueegsegger
+ * 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.
+ */
+
+#ifndef TKM_KEYMAT_H_
+#define TKM_KEYMAT_H_
+
+#include <sa/keymat.h>
+
+typedef struct tkm_keymat_t tkm_keymat_t;
+
+/**
+ * Derivation and management of sensitive keying material, TKM variant.
+ */
+struct tkm_keymat_t {
+
+ /**
+ * Implements keymat_t.
+ */
+ keymat_t keymat;
+
+ /**
+ * Use TKM to derive IKE key material.
+ *
+ * @param proposal selected algorithms
+ * @param dh diffie hellman key allocated by create_dh()
+ * @param nonce_i initiators nonce value
+ * @param nonce_r responders nonce value
+ * @param id IKE_SA identifier
+ * @param rekey_prf PRF of old SA if rekeying, PRF_UNDEFINED otherwise
+ * @param rekey_skd SKd of old SA if rekeying
+ * @return TRUE on success
+ */
+ bool (*derive_ike_keys)(tkm_keymat_t *this, proposal_t *proposal,
+ diffie_hellman_t *dh, chunk_t nonce_i,
+ chunk_t nonce_r, ike_sa_id_t *id,
+ pseudo_random_function_t rekey_function,
+ chunk_t rekey_skd);
+
+ /**
+ * Use TKM to derive child key material.
+ *
+ * @param proposal selected algorithms
+ * @param dh diffie hellman key allocated by create_dh(), or NULL
+ * @param nonce_i initiators nonce value
+ * @param nonce_r responders nonce value
+ * @param encr_i handle to initiators encryption key
+ * @param integ_i handle to initiators integrity key
+ * @param encr_r handle to responders encryption key
+ * @param integ_r handle to responders integrity key
+ * @return TRUE on success
+ */
+ bool (*derive_child_keys)(tkm_keymat_t *this,
+ proposal_t *proposal, diffie_hellman_t *dh,
+ chunk_t nonce_i, chunk_t nonce_r,
+ chunk_t *encr_i, chunk_t *integ_i,
+ chunk_t *encr_r, chunk_t *integ_r);
+
+ /**
+ * Use TKM to generate auth octets.
+ *
+ * @param verify TRUE to create for verfification, FALSE to sign
+ * @param ike_sa_init encoded ike_sa_init message
+ * @param nonce nonce value
+ * @param id identity
+ * @param reserved reserved bytes of id_payload
+ * @param octests chunk receiving allocated auth octets
+ * @return TRUE if octets created successfully
+ */
+ bool (*get_auth_octets)(tkm_keymat_t *this, bool verify, chunk_t ike_sa_init,
+ chunk_t nonce, identification_t *id,
+ char reserved[3], chunk_t *octets);
+
+ /**
+ * Get SKd and PRF to derive keymat.
+ *
+ * @param skd chunk to write SKd to (internal data)
+ * @return PRF function to derive keymat
+ */
+ pseudo_random_function_t (*get_skd)(tkm_keymat_t *this, chunk_t *skd);
+
+ /**
+ * Build the shared secret signature used for PSK and EAP authentication.
+ *
+ * @param verify TRUE to create for verfification, FALSE to sign
+ * @param ike_sa_init encoded ike_sa_init message
+ * @param nonce nonce value
+ * @param secret optional secret to include into signature
+ * @param id identity
+ * @param reserved reserved bytes of id_payload
+ * @param sign chunk receiving allocated signature octets
+ * @return TRUE if signature created successfully
+ */
+ bool (*get_psk_sig)(tkm_keymat_t *this, bool verify, chunk_t ike_sa_init,
+ chunk_t nonce, chunk_t secret,
+ identification_t *id, char reserved[3], chunk_t *sig);
+};
+
+/**
+ * Create TKM keymat instance.
+ *
+ * @param initiator TRUE if we are the initiator
+ * @return keymat instance
+ */
+tkm_keymat_t *tkm_keymat_create(bool initiator);
+
+#endif /** KEYMAT_TKM_H_ */
projects / thirdparty / strongswan.git / commitdiff
