camellia-ntt.c

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/* camellia.h	ver 1.2.0
 *
 * Copyright (C) 2006,2007
 * NTT (Nippon Telegraph and Telephone Corporation).
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

/*
 * Algorithm Specification 
 *  http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
 */

#include <string.h>
#include <stdlib.h>

#include "camellia.h"

/* u32 must be 32bit word */
typedef unsigned int u32;
typedef unsigned char u8;

/* key constants */

#define CAMELLIA_SIGMA1L (0xA09E667FL)
#define CAMELLIA_SIGMA1R (0x3BCC908BL)
#define CAMELLIA_SIGMA2L (0xB67AE858L)
#define CAMELLIA_SIGMA2R (0x4CAA73B2L)
#define CAMELLIA_SIGMA3L (0xC6EF372FL)
#define CAMELLIA_SIGMA3R (0xE94F82BEL)
#define CAMELLIA_SIGMA4L (0x54FF53A5L)
#define CAMELLIA_SIGMA4R (0xF1D36F1CL)
#define CAMELLIA_SIGMA5L (0x10E527FAL)
#define CAMELLIA_SIGMA5R (0xDE682D1DL)
#define CAMELLIA_SIGMA6L (0xB05688C2L)
#define CAMELLIA_SIGMA6R (0xB3E6C1FDL)

/*
 *  macros
 */


#if defined(_MSC_VER)

# define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00)
# define GETU32(p) SWAP(*((u32 *)(p)))
# define PUTU32(ct, st) {*((u32 *)(ct)) = SWAP((st));}

#else /* not MS-VC */

# define GETU32(pt)				\
    (((u32)(pt)[0] << 24)			\
     ^ ((u32)(pt)[1] << 16)			\
     ^ ((u32)(pt)[2] <<  8)			\
     ^ ((u32)(pt)[3]))

# define PUTU32(ct, st)  {			\
	(ct)[0] = (u8)((st) >> 24);		\
	(ct)[1] = (u8)((st) >> 16);		\
	(ct)[2] = (u8)((st) >>  8);		\
	(ct)[3] = (u8)(st); }

#endif

#define CamelliaSubkeyL(INDEX) (subkey[(INDEX)*2])
#define CamelliaSubkeyR(INDEX) (subkey[(INDEX)*2 + 1])

/* rotation right shift 1byte */
#define CAMELLIA_RR8(x) (((x) >> 8) + ((x) << 24))
/* rotation left shift 1bit */
#define CAMELLIA_RL1(x) (((x) << 1) + ((x) >> 31))
/* rotation left shift 1byte */
#define CAMELLIA_RL8(x) (((x) << 8) + ((x) >> 24))

#define CAMELLIA_ROLDQ(ll, lr, rl, rr, w0, w1, bits)	\
    do {						\
	w0 = ll;					\
	ll = (ll << bits) + (lr >> (32 - bits));	\
	lr = (lr << bits) + (rl >> (32 - bits));	\
	rl = (rl << bits) + (rr >> (32 - bits));	\
	rr = (rr << bits) + (w0 >> (32 - bits));	\
    } while(0)

#define CAMELLIA_ROLDQo32(ll, lr, rl, rr, w0, w1, bits)	\
    do {						\
	w0 = ll;					\
	w1 = lr;					\
	ll = (lr << (bits - 32)) + (rl >> (64 - bits));	\
	lr = (rl << (bits - 32)) + (rr >> (64 - bits));	\
	rl = (rr << (bits - 32)) + (w0 >> (64 - bits));	\
	rr = (w0 << (bits - 32)) + (w1 >> (64 - bits));	\
    } while(0)

#define CAMELLIA_SP1110(INDEX) (camellia_sp1110[(INDEX)])
#define CAMELLIA_SP0222(INDEX) (camellia_sp0222[(INDEX)])
#define CAMELLIA_SP3033(INDEX) (camellia_sp3033[(INDEX)])
#define CAMELLIA_SP4404(INDEX) (camellia_sp4404[(INDEX)])

#define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1)	\
    do {							\
	il = xl ^ kl;						\
	ir = xr ^ kr;						\
	t0 = il >> 16;						\
	t1 = ir >> 16;						\
	yl = CAMELLIA_SP1110(ir & 0xff)				\
	    ^ CAMELLIA_SP0222((t1 >> 8) & 0xff)			\
	    ^ CAMELLIA_SP3033(t1 & 0xff)			\
	    ^ CAMELLIA_SP4404((ir >> 8) & 0xff);		\
	yr = CAMELLIA_SP1110((t0 >> 8) & 0xff)			\
	    ^ CAMELLIA_SP0222(t0 & 0xff)			\
	    ^ CAMELLIA_SP3033((il >> 8) & 0xff)			\
	    ^ CAMELLIA_SP4404(il & 0xff);			\
	yl ^= yr;						\
	yr = CAMELLIA_RR8(yr);					\
	yr ^= yl;						\
    } while(0)


/*
 * for speed up
 *
 */
#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) \
    do {								\
	t0 = kll;							\
	t0 &= ll;							\
	lr ^= CAMELLIA_RL1(t0);						\
	t1 = klr;							\
	t1 |= lr;							\
	ll ^= t1;							\
									\
	t2 = krr;							\
	t2 |= rr;							\
	rl ^= t2;							\
	t3 = krl;							\
	t3 &= rl;							\
	rr ^= CAMELLIA_RL1(t3);						\
    } while(0)

#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir, t0, t1)	\
    do {								\
	ir = CAMELLIA_SP1110(xr & 0xff)					\
	    ^ CAMELLIA_SP0222((xr >> 24) & 0xff)			\
	    ^ CAMELLIA_SP3033((xr >> 16) & 0xff)			\
	    ^ CAMELLIA_SP4404((xr >> 8) & 0xff);			\
	il = CAMELLIA_SP1110((xl >> 24) & 0xff)				\
	    ^ CAMELLIA_SP0222((xl >> 16) & 0xff)			\
	    ^ CAMELLIA_SP3033((xl >> 8) & 0xff)				\
	    ^ CAMELLIA_SP4404(xl & 0xff);				\
	il ^= kl;							\
	ir ^= kr;							\
	ir ^= il;							\
	il = CAMELLIA_RR8(il);						\
	il ^= ir;							\
	yl ^= ir;							\
	yr ^= il;							\
    } while(0)


static const u32 camellia_sp1110[256] = {
    0x70707000,0x82828200,0x2c2c2c00,0xececec00,
    0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500,
    0xe4e4e400,0x85858500,0x57575700,0x35353500,
    0xeaeaea00,0x0c0c0c00,0xaeaeae00,0x41414100,
    0x23232300,0xefefef00,0x6b6b6b00,0x93939300,
    0x45454500,0x19191900,0xa5a5a500,0x21212100,
    0xededed00,0x0e0e0e00,0x4f4f4f00,0x4e4e4e00,
    0x1d1d1d00,0x65656500,0x92929200,0xbdbdbd00,
    0x86868600,0xb8b8b800,0xafafaf00,0x8f8f8f00,
    0x7c7c7c00,0xebebeb00,0x1f1f1f00,0xcecece00,
    0x3e3e3e00,0x30303000,0xdcdcdc00,0x5f5f5f00,
    0x5e5e5e00,0xc5c5c500,0x0b0b0b00,0x1a1a1a00,
    0xa6a6a600,0xe1e1e100,0x39393900,0xcacaca00,
    0xd5d5d500,0x47474700,0x5d5d5d00,0x3d3d3d00,
    0xd9d9d900,0x01010100,0x5a5a5a00,0xd6d6d600,
    0x51515100,0x56565600,0x6c6c6c00,0x4d4d4d00,
    0x8b8b8b00,0x0d0d0d00,0x9a9a9a00,0x66666600,
    0xfbfbfb00,0xcccccc00,0xb0b0b000,0x2d2d2d00,
    0x74747400,0x12121200,0x2b2b2b00,0x20202000,
    0xf0f0f000,0xb1b1b100,0x84848400,0x99999900,
    0xdfdfdf00,0x4c4c4c00,0xcbcbcb00,0xc2c2c200,
    0x34343400,0x7e7e7e00,0x76767600,0x05050500,
    0x6d6d6d00,0xb7b7b700,0xa9a9a900,0x31313100,
    0xd1d1d100,0x17171700,0x04040400,0xd7d7d700,
    0x14141400,0x58585800,0x3a3a3a00,0x61616100,
    0xdedede00,0x1b1b1b00,0x11111100,0x1c1c1c00,
    0x32323200,0x0f0f0f00,0x9c9c9c00,0x16161600,
    0x53535300,0x18181800,0xf2f2f200,0x22222200,
    0xfefefe00,0x44444400,0xcfcfcf00,0xb2b2b200,
    0xc3c3c300,0xb5b5b500,0x7a7a7a00,0x91919100,
    0x24242400,0x08080800,0xe8e8e800,0xa8a8a800,
    0x60606000,0xfcfcfc00,0x69696900,0x50505000,
    0xaaaaaa00,0xd0d0d000,0xa0a0a000,0x7d7d7d00,
    0xa1a1a100,0x89898900,0x62626200,0x97979700,
    0x54545400,0x5b5b5b00,0x1e1e1e00,0x95959500,
    0xe0e0e000,0xffffff00,0x64646400,0xd2d2d200,
    0x10101000,0xc4c4c400,0x00000000,0x48484800,
    0xa3a3a300,0xf7f7f700,0x75757500,0xdbdbdb00,
    0x8a8a8a00,0x03030300,0xe6e6e600,0xdadada00,
    0x09090900,0x3f3f3f00,0xdddddd00,0x94949400,
    0x87878700,0x5c5c5c00,0x83838300,0x02020200,
    0xcdcdcd00,0x4a4a4a00,0x90909000,0x33333300,
    0x73737300,0x67676700,0xf6f6f600,0xf3f3f300,
    0x9d9d9d00,0x7f7f7f00,0xbfbfbf00,0xe2e2e200,
    0x52525200,0x9b9b9b00,0xd8d8d800,0x26262600,
    0xc8c8c800,0x37373700,0xc6c6c600,0x3b3b3b00,
    0x81818100,0x96969600,0x6f6f6f00,0x4b4b4b00,
    0x13131300,0xbebebe00,0x63636300,0x2e2e2e00,
    0xe9e9e900,0x79797900,0xa7a7a700,0x8c8c8c00,
    0x9f9f9f00,0x6e6e6e00,0xbcbcbc00,0x8e8e8e00,
    0x29292900,0xf5f5f500,0xf9f9f900,0xb6b6b600,
    0x2f2f2f00,0xfdfdfd00,0xb4b4b400,0x59595900,
    0x78787800,0x98989800,0x06060600,0x6a6a6a00,
    0xe7e7e700,0x46464600,0x71717100,0xbababa00,
    0xd4d4d400,0x25252500,0xababab00,0x42424200,
    0x88888800,0xa2a2a200,0x8d8d8d00,0xfafafa00,
    0x72727200,0x07070700,0xb9b9b900,0x55555500,
    0xf8f8f800,0xeeeeee00,0xacacac00,0x0a0a0a00,
    0x36363600,0x49494900,0x2a2a2a00,0x68686800,
    0x3c3c3c00,0x38383800,0xf1f1f100,0xa4a4a400,
    0x40404000,0x28282800,0xd3d3d300,0x7b7b7b00,
    0xbbbbbb00,0xc9c9c900,0x43434300,0xc1c1c100,
    0x15151500,0xe3e3e300,0xadadad00,0xf4f4f400,
    0x77777700,0xc7c7c700,0x80808000,0x9e9e9e00,
};

static const u32 camellia_sp0222[256] = {
    0x00e0e0e0,0x00050505,0x00585858,0x00d9d9d9,
    0x00676767,0x004e4e4e,0x00818181,0x00cbcbcb,
    0x00c9c9c9,0x000b0b0b,0x00aeaeae,0x006a6a6a,
    0x00d5d5d5,0x00181818,0x005d5d5d,0x00828282,
    0x00464646,0x00dfdfdf,0x00d6d6d6,0x00272727,
    0x008a8a8a,0x00323232,0x004b4b4b,0x00424242,
    0x00dbdbdb,0x001c1c1c,0x009e9e9e,0x009c9c9c,
    0x003a3a3a,0x00cacaca,0x00252525,0x007b7b7b,
    0x000d0d0d,0x00717171,0x005f5f5f,0x001f1f1f,
    0x00f8f8f8,0x00d7d7d7,0x003e3e3e,0x009d9d9d,
    0x007c7c7c,0x00606060,0x00b9b9b9,0x00bebebe,
    0x00bcbcbc,0x008b8b8b,0x00161616,0x00343434,
    0x004d4d4d,0x00c3c3c3,0x00727272,0x00959595,
    0x00ababab,0x008e8e8e,0x00bababa,0x007a7a7a,
    0x00b3b3b3,0x00020202,0x00b4b4b4,0x00adadad,
    0x00a2a2a2,0x00acacac,0x00d8d8d8,0x009a9a9a,
    0x00171717,0x001a1a1a,0x00353535,0x00cccccc,
    0x00f7f7f7,0x00999999,0x00616161,0x005a5a5a,
    0x00e8e8e8,0x00242424,0x00565656,0x00404040,
    0x00e1e1e1,0x00636363,0x00090909,0x00333333,
    0x00bfbfbf,0x00989898,0x00979797,0x00858585,
    0x00686868,0x00fcfcfc,0x00ececec,0x000a0a0a,
    0x00dadada,0x006f6f6f,0x00535353,0x00626262,
    0x00a3a3a3,0x002e2e2e,0x00080808,0x00afafaf,
    0x00282828,0x00b0b0b0,0x00747474,0x00c2c2c2,
    0x00bdbdbd,0x00363636,0x00222222,0x00383838,
    0x00646464,0x001e1e1e,0x00393939,0x002c2c2c,
    0x00a6a6a6,0x00303030,0x00e5e5e5,0x00444444,
    0x00fdfdfd,0x00888888,0x009f9f9f,0x00656565,
    0x00878787,0x006b6b6b,0x00f4f4f4,0x00232323,
    0x00484848,0x00101010,0x00d1d1d1,0x00515151,
    0x00c0c0c0,0x00f9f9f9,0x00d2d2d2,0x00a0a0a0,
    0x00555555,0x00a1a1a1,0x00414141,0x00fafafa,
    0x00434343,0x00131313,0x00c4c4c4,0x002f2f2f,
    0x00a8a8a8,0x00b6b6b6,0x003c3c3c,0x002b2b2b,
    0x00c1c1c1,0x00ffffff,0x00c8c8c8,0x00a5a5a5,
    0x00202020,0x00898989,0x00000000,0x00909090,
    0x00474747,0x00efefef,0x00eaeaea,0x00b7b7b7,
    0x00151515,0x00060606,0x00cdcdcd,0x00b5b5b5,
    0x00121212,0x007e7e7e,0x00bbbbbb,0x00292929,
    0x000f0f0f,0x00b8b8b8,0x00070707,0x00040404,
    0x009b9b9b,0x00949494,0x00212121,0x00666666,
    0x00e6e6e6,0x00cecece,0x00ededed,0x00e7e7e7,
    0x003b3b3b,0x00fefefe,0x007f7f7f,0x00c5c5c5,
    0x00a4a4a4,0x00373737,0x00b1b1b1,0x004c4c4c,
    0x00919191,0x006e6e6e,0x008d8d8d,0x00767676,
    0x00030303,0x002d2d2d,0x00dedede,0x00969696,
    0x00262626,0x007d7d7d,0x00c6c6c6,0x005c5c5c,
    0x00d3d3d3,0x00f2f2f2,0x004f4f4f,0x00191919,
    0x003f3f3f,0x00dcdcdc,0x00797979,0x001d1d1d,
    0x00525252,0x00ebebeb,0x00f3f3f3,0x006d6d6d,
    0x005e5e5e,0x00fbfbfb,0x00696969,0x00b2b2b2,
    0x00f0f0f0,0x00313131,0x000c0c0c,0x00d4d4d4,
    0x00cfcfcf,0x008c8c8c,0x00e2e2e2,0x00757575,
    0x00a9a9a9,0x004a4a4a,0x00575757,0x00848484,
    0x00111111,0x00454545,0x001b1b1b,0x00f5f5f5,
    0x00e4e4e4,0x000e0e0e,0x00737373,0x00aaaaaa,
    0x00f1f1f1,0x00dddddd,0x00595959,0x00141414,
    0x006c6c6c,0x00929292,0x00545454,0x00d0d0d0,
    0x00787878,0x00707070,0x00e3e3e3,0x00494949,
    0x00808080,0x00505050,0x00a7a7a7,0x00f6f6f6,
    0x00777777,0x00939393,0x00868686,0x00838383,
    0x002a2a2a,0x00c7c7c7,0x005b5b5b,0x00e9e9e9,
    0x00eeeeee,0x008f8f8f,0x00010101,0x003d3d3d,
};

static const u32 camellia_sp3033[256] = {
    0x38003838,0x41004141,0x16001616,0x76007676,
    0xd900d9d9,0x93009393,0x60006060,0xf200f2f2,
    0x72007272,0xc200c2c2,0xab00abab,0x9a009a9a,
    0x75007575,0x06000606,0x57005757,0xa000a0a0,
    0x91009191,0xf700f7f7,0xb500b5b5,0xc900c9c9,
    0xa200a2a2,0x8c008c8c,0xd200d2d2,0x90009090,
    0xf600f6f6,0x07000707,0xa700a7a7,0x27002727,
    0x8e008e8e,0xb200b2b2,0x49004949,0xde00dede,
    0x43004343,0x5c005c5c,0xd700d7d7,0xc700c7c7,
    0x3e003e3e,0xf500f5f5,0x8f008f8f,0x67006767,
    0x1f001f1f,0x18001818,0x6e006e6e,0xaf00afaf,
    0x2f002f2f,0xe200e2e2,0x85008585,0x0d000d0d,
    0x53005353,0xf000f0f0,0x9c009c9c,0x65006565,
    0xea00eaea,0xa300a3a3,0xae00aeae,0x9e009e9e,
    0xec00ecec,0x80008080,0x2d002d2d,0x6b006b6b,
    0xa800a8a8,0x2b002b2b,0x36003636,0xa600a6a6,
    0xc500c5c5,0x86008686,0x4d004d4d,0x33003333,
    0xfd00fdfd,0x66006666,0x58005858,0x96009696,
    0x3a003a3a,0x09000909,0x95009595,0x10001010,
    0x78007878,0xd800d8d8,0x42004242,0xcc00cccc,
    0xef00efef,0x26002626,0xe500e5e5,0x61006161,
    0x1a001a1a,0x3f003f3f,0x3b003b3b,0x82008282,
    0xb600b6b6,0xdb00dbdb,0xd400d4d4,0x98009898,
    0xe800e8e8,0x8b008b8b,0x02000202,0xeb00ebeb,
    0x0a000a0a,0x2c002c2c,0x1d001d1d,0xb000b0b0,
    0x6f006f6f,0x8d008d8d,0x88008888,0x0e000e0e,
    0x19001919,0x87008787,0x4e004e4e,0x0b000b0b,
    0xa900a9a9,0x0c000c0c,0x79007979,0x11001111,
    0x7f007f7f,0x22002222,0xe700e7e7,0x59005959,
    0xe100e1e1,0xda00dada,0x3d003d3d,0xc800c8c8,
    0x12001212,0x04000404,0x74007474,0x54005454,
    0x30003030,0x7e007e7e,0xb400b4b4,0x28002828,
    0x55005555,0x68006868,0x50005050,0xbe00bebe,
    0xd000d0d0,0xc400c4c4,0x31003131,0xcb00cbcb,
    0x2a002a2a,0xad00adad,0x0f000f0f,0xca00caca,
    0x70007070,0xff00ffff,0x32003232,0x69006969,
    0x08000808,0x62006262,0x00000000,0x24002424,
    0xd100d1d1,0xfb00fbfb,0xba00baba,0xed00eded,
    0x45004545,0x81008181,0x73007373,0x6d006d6d,
    0x84008484,0x9f009f9f,0xee00eeee,0x4a004a4a,
    0xc300c3c3,0x2e002e2e,0xc100c1c1,0x01000101,
    0xe600e6e6,0x25002525,0x48004848,0x99009999,
    0xb900b9b9,0xb300b3b3,0x7b007b7b,0xf900f9f9,
    0xce00cece,0xbf00bfbf,0xdf00dfdf,0x71007171,
    0x29002929,0xcd00cdcd,0x6c006c6c,0x13001313,
    0x64006464,0x9b009b9b,0x63006363,0x9d009d9d,
    0xc000c0c0,0x4b004b4b,0xb700b7b7,0xa500a5a5,
    0x89008989,0x5f005f5f,0xb100b1b1,0x17001717,
    0xf400f4f4,0xbc00bcbc,0xd300d3d3,0x46004646,
    0xcf00cfcf,0x37003737,0x5e005e5e,0x47004747,
    0x94009494,0xfa00fafa,0xfc00fcfc,0x5b005b5b,
    0x97009797,0xfe00fefe,0x5a005a5a,0xac00acac,
    0x3c003c3c,0x4c004c4c,0x03000303,0x35003535,
    0xf300f3f3,0x23002323,0xb800b8b8,0x5d005d5d,
    0x6a006a6a,0x92009292,0xd500d5d5,0x21002121,
    0x44004444,0x51005151,0xc600c6c6,0x7d007d7d,
    0x39003939,0x83008383,0xdc00dcdc,0xaa00aaaa,
    0x7c007c7c,0x77007777,0x56005656,0x05000505,
    0x1b001b1b,0xa400a4a4,0x15001515,0x34003434,
    0x1e001e1e,0x1c001c1c,0xf800f8f8,0x52005252,