threefish.cc File Reference

Analysis of block cipher Threefish – common routines. More...

#include "common.hh"
#include "xdp-add-diff-set.hh"
#include "threefish.hh"

Functions
void	threefish32_mix (uint32_t X[4], uint32_t rot_const_0, uint32_t rot_const_1)
void	threefish32 (uint32_t nrounds, uint32_t rot_const[THREEFISH_MAX_NROUNDS][2], uint32_t X[4], uint32_t Y[4])
void	threefish64_mix (uint64_t X[4], uint64_t rot_const_0, uint64_t rot_const_1)
void	threefish64 (uint64_t nrounds, uint32_t rot_const[8][2], uint64_t X[4], uint64_t Y[4])
void	threefish32_print_dset (diff_set_t DX[4])
void	threefish32_print_prob (double P[4])
void	threefish32_print_dset_trail (uint32_t nrounds, diff_set_t DT[THREEFISH_MAX_NROUNDS][4], double P[THREEFISH_MAX_NROUNDS][4])

Variables
uint32_t	g_threefish32_rot_const [12][2]
uint32_t	g_threefish64_rot_const [8][2]

Detailed Description

Analysis of block cipher Threefish – common routines.

Author

V.Velichkov, vesse.nosp@m.lin..nosp@m.velic.nosp@m.hkov.nosp@m.@uni..nosp@m.lu

Function Documentation

void threefish32	(	uint32_t	nrounds,
		uint32_t	rot_const[THREEFISH_MAX_NROUNDS][2],
		uint32_t	X[4],
		uint32_t	Y[4]
	)

Threefish-256 with 32-bit word size Reference source code: http://www.schneier.com/code/threefish.zip

void threefish32_mix	(	uint32_t	X[4],
		uint32_t	rot_const_0,
		uint32_t	rot_const_1
	)

The MIX primitive of 32-bit Threefish.

void threefish64	(	uint64_t	nrounds,
		uint32_t	rot_const[8][2],
		uint64_t	X[4],
		uint64_t	Y[4]
	)

Threefish-256 with 64-bit word size Reference source code: http://www.schneier.com/code/threefish.zip

void threefish64_mix	(	uint64_t	X[4],
		uint64_t	rot_const_0,
		uint64_t	rot_const_1
	)

The MIX primitive of 64-bit Threefish.

Variable Documentation

uint32_t g_threefish32_rot_const[12][2]

Initial value:

= {
  { 7,  9},
  {26, 28},
  {11, 20},
  { 3, 17},
  {13, 19},
  {24,  6},
  {28, 12},
  { 3, 14},
  {12,  6},
  { 7,  5},
  {22, 18},
  { 6, 14}
}

Example rotation constants for 32-bit version of Threefish.

uint32_t g_threefish64_rot_const[8][2]

Initial value:

= {
  {14, 16},
  {52, 57},
  {23, 40},
  { 5, 37},
  {25, 33},
  {46, 12},
  {58, 22},
  {32, 32},
}

Rotation constants for the 64-bit version of Threefish (the original version).