72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#ifndef TWOFISH_H
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#define TWOFISH_H
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#include "Common/Tcdefs.h"
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#include "config.h"
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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#ifndef u4byte
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#define u4byte unsigned __int32
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#endif
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#ifndef u1byte
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#define u1byte unsigned char
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#endif
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#ifndef extract_byte
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#define extract_byte(x,n) ((u1byte)((x) >> (8 * n)))
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#endif
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#ifndef rotl
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#ifdef _WIN32
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#include <stdlib.h>
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#pragma intrinsic(_lrotr,_lrotl)
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#define rotr(x,n) _lrotr(x,n)
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#define rotl(x,n) _lrotl(x,n)
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#else
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#define rotr(x,n) (((x)>>(n))|((x)<<(32-(n))))
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#define rotl(x,n) (((x)<<(n))|((x)>>(32-(n))))
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#endif
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#endif
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typedef struct
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{
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#if CRYPTOPP_BOOL_X64 && !defined(CRYPTOPP_DISABLE_ASM)
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u4byte mk_tab[4][256], w[8], k[32];
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#else
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u4byte l_key[40];
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#ifdef TC_MINIMIZE_CODE_SIZE
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u4byte s_key[4];
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#ifdef TC_WINDOWS_BOOT_TWOFISH
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u4byte mk_tab[4 * 256];
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#endif
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#else
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u4byte mk_tab[4][256];
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#endif
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#endif
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} TwofishInstance;
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#define TWOFISH_KS sizeof(TwofishInstance)
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/* in_key must be 32-bytes long */
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void twofish_set_key(TwofishInstance *instance, const u4byte in_key[]);
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#if CRYPTOPP_BOOL_X64 && !defined(CRYPTOPP_DISABLE_ASM)
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void twofish_encrypt_blocks(TwofishInstance *instance, const byte* in_blk, byte* out_blk, uint32 blockCount);
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void twofish_decrypt_blocks(TwofishInstance *instance, const byte* in_blk, byte* out_blk, uint32 blockCount);
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#define twofish_encrypt(instance,in_blk,out_blk) twofish_encrypt_blocks(instance, (const byte*) in_blk, (byte*) out_blk, 1)
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#define twofish_decrypt(instance,in_blk,out_blk) twofish_decrypt_blocks(instance, (const byte*) in_blk, (byte*) out_blk, 1)
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#else
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void twofish_encrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[4]);
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void twofish_decrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[4]);
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif // TWOFISH_H
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