srsLTE/lib/include/srsran/common/zuc.h

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C

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2021 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
#ifndef SRSRAN_ZUC_H
#define SRSRAN_ZUC_H
typedef unsigned char u8;
typedef unsigned int u32;
/* the state registers of LFSR */
typedef struct {
u32 LFSR_S0;
u32 LFSR_S1;
u32 LFSR_S2;
u32 LFSR_S3;
u32 LFSR_S4;
u32 LFSR_S5;
u32 LFSR_S6;
u32 LFSR_S7;
u32 LFSR_S8;
u32 LFSR_S9;
u32 LFSR_S10;
u32 LFSR_S11;
u32 LFSR_S12;
u32 LFSR_S13;
u32 LFSR_S14;
u32 LFSR_S15;
/* the registers of F */
u32 F_R1;
u32 F_R2;
/* the outputs of BitReorganization */
u32 BRC_X0;
u32 BRC_X1;
u32 BRC_X2;
u32 BRC_X3;
} zuc_state_t;
void zuc_initialize(zuc_state_t* state, const u8* k, u8* iv);
void zuc_generate_keystream(zuc_state_t* state, int key_stream_len, u32* p_keystream);
#endif // SRSRAN_ZUC_H