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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsRAN is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSRAN_ZUC_H
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#define SRSRAN_ZUC_H
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typedef unsigned char u8;
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typedef unsigned int u32;
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/* the state registers of LFSR */
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typedef struct {
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u32 LFSR_S0;
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u32 LFSR_S1;
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u32 LFSR_S2;
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u32 LFSR_S3;
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u32 LFSR_S4;
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u32 LFSR_S5;
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u32 LFSR_S6;
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u32 LFSR_S7;
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u32 LFSR_S8;
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u32 LFSR_S9;
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u32 LFSR_S10;
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u32 LFSR_S11;
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u32 LFSR_S12;
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u32 LFSR_S13;
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u32 LFSR_S14;
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u32 LFSR_S15;
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/* the registers of F */
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u32 F_R1;
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u32 F_R2;
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/* the outputs of BitReorganization */
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u32 BRC_X0;
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u32 BRC_X1;
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u32 BRC_X2;
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u32 BRC_X3;
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} zuc_state_t;
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void zuc_initialize(zuc_state_t* state, const u8* k, u8* iv);
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void zuc_generate_keystream(zuc_state_t* state, int key_stream_len, u32* p_keystream);
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#endif // SRSRAN_ZUC_H
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