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Annotation of truecrypt/crypto/twofish.h, revision 1.1.1.3

1.1       root        1: #ifndef u4byte
1.1.1.2   root        2: #define u4byte unsigned __int32
1.1       root        3: #endif
                      4: #ifndef u1byte
1.1.1.2   root        5: #define u1byte unsigned char
1.1       root        6: #endif
                      7: 
                      8: #ifndef extract_byte
                      9: #define extract_byte(x,n)   ((u1byte)((x) >> (8 * n)))
                     10: #endif
                     11: 
                     12: #ifndef rotl
1.1.1.2   root       13: 
                     14: #ifdef _WIN32
1.1       root       15: #include <stdlib.h>
                     16: #pragma intrinsic(_lrotr,_lrotl)
                     17: #define rotr(x,n) _lrotr(x,n)
                     18: #define rotl(x,n) _lrotl(x,n)
1.1.1.2   root       19: #else
                     20: #define rotr(x,n) (((x)>>(n))|((x)<<(32-(n))))
                     21: #define rotl(x,n) (((x)<<(n))|((x)>>(32-(n))))
                     22: #endif
                     23: 
1.1       root       24: #endif
                     25: 
                     26: typedef struct
                     27: {
                     28:        u4byte *l_key;
                     29:        u4byte *s_key;
                     30:        u4byte *mk_tab;
                     31:        u4byte k_len;
                     32: } TwofishInstance;
                     33: 
                     34: #define TF_L_KEY_SIZE  (40*4)
                     35: #define TF_S_KEY_SIZE  (4*4)
                     36: #define TF_MK_TAB_SIZE (4*4*256)
                     37: #define TWOFISH_KS             (sizeof(TwofishInstance) + TF_L_KEY_SIZE + TF_S_KEY_SIZE + TF_MK_TAB_SIZE)
                     38: 
1.1.1.3 ! root       39: u4byte * twofish_set_key(TwofishInstance *instance, const u4byte in_key[], const u4byte key_len);
        !            40: void twofish_encrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[]);
        !            41: void twofish_decrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[4]);

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