Lionel Gauthier
059a0a3fdc
This is done for better merging branch/LG_PRE_RELEASE_0.3 into trunk (same process is applied on this branch) git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7073 818b1a75-f10b-46b9-bf7c-635c3b92a50f
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*******************************************************************************
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Eurecom OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information
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Openair Admin: openair_admin@eurecom.fr
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Openair Tech : openair_tech@eurecom.fr
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Forums : http://forums.eurecom.fr/openairinterface
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Address : EURECOM, Campus SophiaTech, 450 Route des Chappes
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06410 Biot FRANCE
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*******************************************************************************/
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/*! \file snow3g.h
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* \brief
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* \author Open source Adapted from Specification of the 3GPP Confidentiality and
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* Integrity Algorithms UEA2 & UIA2. Document 2: SNOW 3G Specification
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* \integrators Kharbach Othmane, GAUTHIER Lionel.
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* \date 2014
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* \version
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* \note
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* \bug
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* \warning
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*/
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#ifndef OSA_SNOW3G_H_
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#define OSA_SNOW3G_H_
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typedef struct osa_snow_3g_context_s {
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uint32_t LFSR_S0;
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uint32_t LFSR_S1;
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uint32_t LFSR_S2;
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uint32_t LFSR_S3;
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uint32_t LFSR_S4;
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uint32_t LFSR_S5;
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uint32_t LFSR_S6;
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uint32_t LFSR_S7;
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uint32_t LFSR_S8;
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uint32_t LFSR_S9;
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uint32_t LFSR_S10;
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uint32_t LFSR_S11;
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uint32_t LFSR_S12;
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uint32_t LFSR_S13;
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uint32_t LFSR_S14;
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uint32_t LFSR_S15;
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/* FSM : The Finite State Machine has three 32-bit registers R1, R2 and R3.
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*/
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uint32_t FSM_R1;
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uint32_t FSM_R2;
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uint32_t FSM_R3;
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} osa_snow_3g_context_t;
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/* Initialization.
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* Input k[4]: Four 32-bit words making up 128-bit key.
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* Input IV[4]: Four 32-bit words making 128-bit initialization variable.
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* Output: All the LFSRs and FSM are initialized for key generation.
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*/
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void osa_snow3g_initialize(uint32_t k[4], uint32_t IV[4], osa_snow_3g_context_t *snow_3g_context_pP);
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/* Generation of Keystream.
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* input n: number of 32-bit words of keystream.
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* input z: space for the generated keystream, assumes
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* memory is allocated already.
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* output: generated keystream which is filled in z
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*/
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void osa_snow3g_generate_key_stream(uint32_t n, uint32_t *z, osa_snow_3g_context_t *snow_3g_context_pP);
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#endif
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