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/*---------------------------------------------------------
* Kasumi.h
*---------------------------------------------------------*/
#if !defined(OGS_CRYPT_INSIDE) && !defined(OGS_CRYPT_COMPILATION)
#error "This header cannot be included directly."
#endif
#ifndef KASUMI_H
#define KASUMI_H
#include "ogs-core.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef uint8_t u8;
typedef uint16_t u16;
/* original reference is using long, which is 64 bits on 64 bits system
I changed to int to make it work on x86 32 / 64 bits system
typedef unsigned long u32;
*/
typedef uint32_t u32;
/*------- unions: used to remove "endian" issues ------------------------*/
typedef union {
u32 b32;
u16 b16[2];
u8 b8[4];
} REGISTER32; /* is redefining DWORD */
typedef union {
u16 b16;
u8 b8[2];
} REGISTER16; /* is redefining WORD */
/*----- a 64-bit structure to help with endian issues -----*/
typedef union {
u32 b32[2];
u16 b16[4];
u8 b8[8];
} REGISTER64;
/*------------- prototypes --------------------------------
* take care: length (in f8 and f9) is always in bits
*---------------------------------------------------------*/
/* initialize the 128 bits key into the cipher */
void kasumi_key_schedule( u8 *key );
/* cipher a block of 64 bits */
void kasumi( u8 *data );
/* cipher a whole message in 3GPP -counter- mode */
void kasumi_f8( u8 *key, u32 count, u32 bearer, u32 dir, u8 *data, int length );
/* compute a 3GPP MAC on a message */
u8* kasumi_f9( u8 *key, u32 count, u32 fresh, u32 dir, u8 *data, int length );
#ifdef __cplusplus
}
#endif
#endif /* KASUMI_H */
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