126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/*
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* Copyright (C) 2008-2009 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup eap_aka_3gpp2_functions eap_aka_3gpp2_functions
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* @{ @ingroup eap_aka_3gpp2
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*/
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#ifndef EAP_AKA_3GPP2_FUNCTIONS_H_
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#define EAP_AKA_3GPP2_FUNCTIONS_H_
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#include <simaka_manager.h>
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#define AKA_SQN_LEN 6
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#define AKA_K_LEN 16
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#define AKA_MAC_LEN 8
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#define AKA_AK_LEN 6
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#define AKA_AMF_LEN 2
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#define AKA_FMK_LEN 4
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typedef struct eap_aka_3gpp2_functions_t eap_aka_3gpp2_functions_t;
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/**
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* f1-f5(), f1*() and f5*() functions from the 3GPP2 (S.S0055) standard.
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*/
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struct eap_aka_3gpp2_functions_t {
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/**
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* Calculate MAC from RAND, SQN, AMF using K.
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*
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* @param k secret key K
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* @param rand random value rand
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* @param sqn sequence number
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* @param amf authentication management field
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* @param mac buffer receiving mac MAC
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*/
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void (*f1)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char sqn[AKA_SQN_LEN],
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u_char amf[AKA_AMF_LEN], u_char mac[AKA_MAC_LEN]);
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/**
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* Calculate MACS from RAND, SQN, AMF using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param sqn sequence number
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* @param amf authentication management field
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* @param macs buffer receiving resynchronization mac MACS
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*/
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void (*f1star)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char sqn[AKA_SQN_LEN],
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u_char amf[AKA_AMF_LEN], u_char macs[AKA_MAC_LEN]);
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/**
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* Calculate RES from RAND using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param res buffer receiving result RES, uses full 128 bit
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*/
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void (*f2)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char res[AKA_RES_MAX]);
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/**
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* Calculate CK from RAND using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param macs buffer receiving encryption key CK
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*/
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void (*f3)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char ck[AKA_CK_LEN]);
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/**
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* Calculate IK from RAND using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param macs buffer receiving integrity key IK
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*/
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void (*f4)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char ik[AKA_IK_LEN]);
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/**
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* Calculate AK from a RAND using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param macs buffer receiving anonymity key AK
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*/
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void (*f5)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char ak[AKA_AK_LEN]);
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/**
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* Calculate AKS from a RAND using K
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*
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* @param k secret key K
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* @param rand random value RAND
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* @param macs buffer receiving resynchronization anonymity key AKS
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*/
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void (*f5star)(eap_aka_3gpp2_functions_t *this, u_char k[AKA_K_LEN],
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u_char rand[AKA_RAND_LEN], u_char aks[AKA_AK_LEN]);
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/**
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* Destroy a eap_aka_3gpp2_functions_t.
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*/
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void (*destroy)(eap_aka_3gpp2_functions_t *this);
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};
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/**
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* Create a eap_aka_3gpp2_functions instance.
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*
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* @return function set, NULL on error
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*/
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eap_aka_3gpp2_functions_t *eap_aka_3gpp2_functions_create();
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#endif /** EAP_AKA_3GPP2_FUNCTIONS_H_ @}*/
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