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55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
#ifndef TWOFISH_H
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#define TWOFISH_H
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#include <inttypes.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 uint32_t
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#endif
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#ifndef u1byte
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#define u1byte uint8_t
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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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u4byte l_key[40];
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u4byte s_key[4];
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u4byte mk_tab[4 * 256];
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u4byte k_len;
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} TwofishInstance;
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#define TWOFISH_KS sizeof(TwofishInstance)
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u4byte * twofish_set_key(TwofishInstance *instance, const u4byte in_key[], const u4byte key_len);
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void twofish_encrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[]);
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void twofish_decrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[4]);
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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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