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#ifndef _BS_H_
#define _BS_H_
#include <stdint.h>
#define BLOCK_SIZE 128
#define KEY_SCHEDULE_SIZE 176
#define WORD_SIZE 64
#define BS_BLOCK_SIZE (BLOCK_SIZE * WORD_SIZE / 8)
#define WORDS_PER_BLOCK (BLOCK_SIZE / WORD_SIZE)
#if (WORD_SIZE==64)
typedef uint64_t word_t;
#define ONE 1ULL
#define MUL_SHIFT 6
#define WFMT "lx"
#define WPAD "016"
#define __builtin_bswap_wordsize(x) __builtin_bswap64(x)
#elif (WORD_SIZE==32)
typedef uint32_t word_t;
#define ONE 1UL
#define MUL_SHIFT 5
#define WFMT "x"
#define WPAD "08"
#define __builtin_bswap_wordsize(x) __builtin_bswap32(x)
#elif (WORD_SIZE==16)
typedef uint16_t word_t;
#define ONE 1
#define MUL_SHIFT 4
#define WFMT "hx"
#define WPAD "04"
#define __builtin_bswap_wordsize(x) __builtin_bswap16(x)
#elif (WORD_SIZE==8)
typedef uint8_t word_t;
#define ONE 1
#define MUL_SHIFT 3
#define WFMT "hhx"
#define WPAD "02"
#define __builtin_bswap_wordsize(x) (x)
#else
#error "invalid word size"
#endif
void bs_transpose(word_t * blocks);
void bs_transpose_rev(word_t * blocks);
void bs_transpose_dst(word_t * transpose, word_t * blocks);
void bs_sbox(word_t U[8]);
void bs_sbox_rev(word_t U[8]);
void bs_shiftrows(word_t * B);
void bs_shiftrows_rev(word_t * B);
void bs_mixcolumns(word_t * B);
void bs_mixcolumns_rev(word_t * B);
void bs_shiftmix(word_t * B);
void bs_addroundkey(word_t * B, word_t * rk);
void bs_apply_sbox(word_t * input);
void bs_apply_sbox_rev(word_t * input);
void expand_key(unsigned char *in);
void bs_expand_key(word_t (* rk)[BLOCK_SIZE], uint8_t * key);
void bs_cipher(word_t state[BLOCK_SIZE], word_t (* rk)[BLOCK_SIZE]);
void bs_cipher_rev(word_t state[BLOCK_SIZE], word_t (* rk)[BLOCK_SIZE]);
#endif
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