skein_512.cpp File Reference

#include <botan/skein_512.h>
#include <botan/loadstor.h>
#include <botan/parsing.h>
#include <botan/exceptn.h>
#include <botan/rotate.h>
#include <algorithm>

Go to the source code of this file.

Namespaces
namespace	Botan

Macros
#define	THREEFISH_8_ROUNDS(R1, R2)
#define	THREEFISH_INJECT_KEY(r)
#define	THREEFISH_ROUND(I1, I2, I3, I4, I5, I6, I7, I8, ROT1, ROT2, ROT3, ROT4)

Macro Definition Documentation

THREEFISH_8_ROUNDS

#define THREEFISH_8_ROUNDS	(		R1,
			R2 )

Value:

do {                                                \
   THREEFISH_ROUND(0,1,2,3,4,5,6,7, 46,36,19,37);   \
   THREEFISH_ROUND(2,1,4,7,6,5,0,3, 33,27,14,42);   \
   THREEFISH_ROUND(4,1,6,3,0,5,2,7, 17,49,36,39);   \
   THREEFISH_ROUND(6,1,0,7,2,5,4,3, 44, 9,54,56);   \
                                                    \
   THREEFISH_INJECT_KEY(R1);                        \
                                                    \
   THREEFISH_ROUND(0,1,2,3,4,5,6,7, 39,30,34,24);   \
   THREEFISH_ROUND(2,1,4,7,6,5,0,3, 13,50,10,17);   \
   THREEFISH_ROUND(4,1,6,3,0,5,2,7, 25,29,39,43);   \
   THREEFISH_ROUND(6,1,0,7,2,5,4,3,  8,35,56,22);   \
                                                    \
   THREEFISH_INJECT_KEY(R2);                        \
} while(0);

THREEFISH_INJECT_KEY

#define THREEFISH_INJECT_KEY

(

r

)

Value:

do {                                      \
   X0 += H[(r  ) % 9];                    \
   X1 += H[(r+1) % 9];                    \
   X2 += H[(r+2) % 9];                    \
   X3 += H[(r+3) % 9];                    \
   X4 += H[(r+4) % 9];                    \
   X5 += H[(r+5) % 9] + T[(r  ) % 3];     \
   X6 += H[(r+6) % 9] + T[(r+1) % 3];     \
   X7 += H[(r+7) % 9] + (r);              \
} while(0);

THREEFISH_ROUND

#define THREEFISH_ROUND	(		I1,
			I2,
			I3,
			I4,
			I5,
			I6,
			I7,
			I8,
			ROT1,
			ROT2,
			ROT3,
			ROT4 )

Value:

do {                                                             \
   X##I1 += X##I2; X##I2 = rotate_left(X##I2, ROT1) ^ X##I1;     \
   X##I3 += X##I4; X##I4 = rotate_left(X##I4, ROT2) ^ X##I3;     \
   X##I5 += X##I6; X##I6 = rotate_left(X##I6, ROT3) ^ X##I5;     \
   X##I7 += X##I8; X##I8 = rotate_left(X##I8, ROT4) ^ X##I7;     \
} while(0);