/* $Id: keccak.c 259 2011-07-19 22:11:27Z tp $ */
/*
* Keccak implementation.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#include <stddef.h>
#include <string.h>
#include "sph_keccak.h"
/*
* Parameters:
*
* SPH_KECCAK_64 use a 64-bit type
* SPH_KECCAK_UNROLL number of loops to unroll (0/undef for full unroll)
* SPH_KECCAK_INTERLEAVE use bit-interleaving (32-bit type only)
* SPH_KECCAK_NOCOPY do not copy the state into local variables
*
* If there is no usable 64-bit type, the code automatically switches
* back to the 32-bit implementation.
*
* Some tests on an Intel Core2 Q6600 (both 64-bit and 32-bit, 32 kB L1
* code cache), a PowerPC (G3, 32 kB L1 code cache), an ARM920T core
* (16 kB L1 code cache), and a small MIPS-compatible CPU (Broadcom BCM3302,
* 8 kB L1 code cache), seem to show that the following are optimal:
*
* -- x86, 64-bit: use the 64-bit implementation, unroll 8 rounds,
* do not copy the state; unrolling 2, 6 or all rounds also provides
* near-optimal performance.
* -- x86, 32-bit: use the 32-bit implementation, unroll 6 rounds,
* interleave, do not copy the state. Unrolling 1, 2, 4 or 8 rounds
* also provides near-optimal performance.
* -- PowerPC: use the 64-bit implementation, unroll 8 rounds,
* copy the state. Unrolling 4 or 6 rounds is near-optimal.
* -- ARM: use the 64-bit implementation, unroll 2 or 4 rounds,
* copy the state.
* -- MIPS: use the 64-bit implementation, unroll 2 rounds, copy
* the state. Unrolling only 1 round is also near-optimal.
*
* Also, interleaving does not always yield actual improvements when
* using a 32-bit implementation; in particular when the architecture
* does not offer a native rotation opcode (interleaving replaces one
* 64-bit rotation with two 32-bit rotations, which is a gain only if
* there is a native 32-bit rotation opcode and not a native 64-bit
* rotation opcode; also, interleaving implies a small overhead when
* processing input words).
*
* To sum up:
* -- when possible, use the 64-bit code
* -- exception: on 32-bit x86, use 32-bit code
* -- when using 32-bit code, use interleaving
* -- copy the state, except on x86
* -- unroll 8 rounds on "big" machine, 2 rounds on "small" machines
*/
#if SPH_SMALL_FOOTPRINT && !defined SPH_SMALL_FOOTPRINT_KECCAK
#define SPH_SMALL_FOOTPRINT_KECCAK 1
#endif
/*
* By default, we select the 64-bit implementation if a 64-bit type
* is available, unless a 32-bit x86 is detected.
*/
#if !defined SPH_KECCAK_64 && SPH_64 \
&& !(defined __i386__ || SPH_I386_GCC || SPH_I386_MSVC)
#define SPH_KECCAK_64 1
#endif
/*
* If using a 32-bit implementation, we prefer to interleave.
*/
#if !SPH_KECCAK_64 && !defined SPH_KECCAK_INTERLEAVE
#define SPH_KECCAK_INTERLEAVE 1
#endif
/*
* Unroll 8 rounds on big systems, 2 rounds on small systems.
*/
#ifndef SPH_KECCAK_UNROLL
#if SPH_SMALL_FOOTPRINT_KECCAK
#define SPH_KECCAK_UNROLL 2
#else
#define SPH_KECCAK_UNROLL 8
#endif
#endif
/*
* We do not want to copy the state to local variables on x86 (32-bit
* and 64-bit alike).
*/
#ifndef SPH_KECCAK_NOCOPY
#if defined __i386__ || defined __x86_64 || SPH_I386_MSVC || SPH_I386_GCC
#define SPH_KECCAK_NOCOPY 1
#else
#define SPH_KECCAK_NOCOPY 0
#endif
#endif
#ifdef _MSC_VER
#pragma warning (disable: 4146)
#endif
#if SPH_KECCAK_64
static const sph_u64 RC[] = {
SPH_C64(0x0000000000000001), SPH_C64(0x0000000000008082),
SPH_C64(0x800000000000808A), SPH_C64(0x8000000080008000),
SPH_C64(0x000000000000808B), SPH_C64(0x0000000080000001),
SPH_C64(0x8000000080008081), SPH_C64(0x8000000000008009),
SPH_C64(0x000000000000008A), SPH_C64(0x0000000000000088),
SPH_C64(0x0000000080008009), SPH_C64(0x000000008000000A),
SPH_C64(0x000000008000808B), SPH_C64(0x800000000000008B),
SPH_C64(0x8000000000008089), SPH_C64(0x8000000000008003),
SPH_C64(0x8000000000008002), SPH_C64(0x8000000000000080),
SPH_C64(0x000000000000800A), SPH_C64(0x800000008000000A),
SPH_C64(0x8000000080008081), SPH_C64(0x8000000000008080),
SPH_C64(0x0000000080000001), SPH_C64(0x8000000080008008)
};
#if SPH_KECCAK_NOCOPY
#define a00 (kc->u.wide[ 0])
#define a10 (kc->u.wide[ 1])
#define a20 (kc->u.wide[ 2])
#define a30 (kc->u.wide[ 3])
#define a40 (kc->u.wide[ 4])
#define a01 (kc->u.wide[ 5])
#define a11 (kc->u.wide[ 6])
#define a21 (kc->u.wide[ 7])
#define a31 (kc->u.wide[ 8])
#define a41 (kc->u.wide[ 9])
#define a02 (kc->u.wide[10])
#define a12 (kc->u.wide[11])
#define a22 (kc->u.wide[12])
#define a32 (kc->u.wide[13])
#define a42 (kc->u.wide[14])
#define a03 (kc->u.wide[15])
#define a13 (kc->u.wide[16])
#define a23 (kc->u.wide[17])
#define a33 (kc->u.wide[18])
#define a43 (kc->u.wide[19])
#define a04 (kc->u.wide[20])
#define a14 (kc->u.wide[21])
#define a24 (kc->u.wide[22])
#define a34 (kc->u.wide[23])
#define a44 (kc->u.wide[24])
#define DECL_STATE
#define READ_STATE(sc)
#define WRITE_STATE(sc)
#define INPUT_BUF(size) do { \
size_t j; \
for (j = 0; j < (size); j += 8) { \
kc->u.wide[j >> 3] ^= sph_dec64le_aligned(buf + j); \
} \
} while (0)
#define INPUT_BUF144 INPUT_BUF(144)
#define INPUT_BUF136 INPUT_BUF(136)
#define INPUT_BUF104 INPUT_BUF(104)
#define INPUT_BUF72 INPUT_BUF(72)
#else
#define DECL_STATE \
sph_u64 a00, a01, a02, a03, a04; \
sph_u64 a10, a11, a12, a13, a14; \
sph_u64 a20, a21, a22, a23, a24; \
sph_u64 a30, a31, a32, a33, a34; \
sph_u64 a40, a41, a42, a43, a44;
#define READ_STATE(state) do { \
a00 = (state)->u.wide[ 0]; \
a10 = (state)->u.wide[ 1]; \
a20 = (state)->u.wide[ 2]; \
a30 = (state)->u.wide[ 3]; \
a40 = (state)->u.wide[ 4]; \
a01 = (state)->u.wide[ 5]; \
a11 = (state)->u.wide[ 6]; \
a21 = (state)->u.wide[ 7]; \
a31 = (state)->u.wide[ 8]; \
a41 = (state)->u.wide[ 9]; \
a02 = (state)->u.wide[10]; \
a12 = (state)->u.wide[11]; \
a22 = (state)->u.wide[12]; \
a32 = (state)->u.wide[13]; \
a42 = (state)->u.wide[14]; \
a03 = (state)->u.wide[15]; \
a13 = (state)->u.wide[16]; \
a23 = (state)->u.wide[17]; \
a33 = (state)->u.wide[18]; \
a43 = (state)->u.wide[19]; \
a04 = (state)->u.wide[20]; \
a14 = (state)->u.wide[21]; \
a24 = (state)->u.wide[22]; \
a34 = (state)->u.wide[23]; \
a44 = (state)->u.wide[24]; \
} while (0)
#define WRITE_STATE(state) do { \
(state)->u.wide[ 0] = a00; \
(state)->u.wide[ 1] = a10; \
(state)->u.wide[ 2] = a20; \
(state)->u.wide[ 3] = a30; \
(state)->u.wide[ 4] = a40; \
(state)->u.wide[ 5] = a01; \
(state)->u.wide[ 6] = a11; \
(state)->u.wide[ 7] = a21; \
(state)->u.wide[ 8] = a31; \
(state)->u.wide[ 9] = a41; \
(state)->u.wide[10] = a02; \
(state)->u.wide[11] = a12; \
(state)->u.wide[12] = a22; \
(state)->u.wide[13] = a32; \
(state)->u.wide[14] = a42; \
(state)->u.wide[15] = a03; \
(state)->u.wide[16] = a13; \
(state)->u.wide[17] = a23; \
(state)->u.wide[18] = a33; \
(state)->u.wide[19] = a43; \
(state)->u.wide[20] = a04; \
(state)->u.wide[21] = a14; \
(state)->u.wide[22] = a24; \
(state)->u.wide[23] = a34; \
(state)->u.wide[24] = a44; \
} while (0)
#define INPUT_BUF144 do { \
a00 ^= sph_dec64le_aligned(buf + 0); \
a10 ^= sph_dec64le_aligned(buf + 8); \
a20 ^= sph_dec64le_aligned(buf + 16); \
a30 ^= sph_dec64le_aligned(buf + 24); \
a40 ^= sph_dec64le_aligned(buf + 32); \
a01 ^= sph_dec64le_aligned(buf + 40); \
a11 ^= sph_dec64le_aligned(buf + 48); \
a21 ^= sph_dec64le_aligned(buf + 56); \
a31 ^= sph_dec64le_aligned(buf + 64); \
a41 ^= sph_dec64le_aligned(buf + 72); \
a02 ^= sph_dec64le_aligned(buf + 80); \
a12 ^= sph_dec64le_aligned(buf + 88); \
a22 ^= sph_dec64le_aligned(buf + 96); \
a32 ^= sph_dec64le_aligned(buf + 104); \
a42 ^= sph_dec64le_aligned(buf + 112); \
a03 ^= sph_dec64le_aligned(buf + 120); \
a13 ^= sph_dec64le_aligned(buf + 128); \
a23 ^= sph_dec64le_aligned(buf + 136); \
} while (0)
#define INPUT_BUF136 do { \
a00 ^= sph_dec64le_aligned(buf + 0); \
a10 ^= sph_dec64le_aligned(buf + 8); \
a20 ^= sph_dec64le_aligned(buf + 16); \
a30 ^= sph_dec64le_aligned(buf + 24); \
a40 ^= sph_dec64le_aligned(buf + 32); \
a01 ^= sph_dec64le_aligned(buf + 40); \
a11 ^= sph_dec64le_aligned(buf + 48); \
a21 ^= sph_dec64le_aligned(buf + 56); \
a31 ^= sph_dec64le_aligned(buf + 64); \
a41 ^= sph_dec64le_aligned(buf + 72); \
a02 ^= sph_dec64le_aligned(buf + 80); \
a12 ^= sph_dec64le_aligned(buf + 88); \
a22 ^= sph_dec64le_aligned(buf + 96); \
a32 ^= sph_dec64le_aligned(buf + 104); \
a42 ^= sph_dec64le_aligned(buf + 112); \
a03 ^= sph_dec64le_aligned(buf + 120); \
a13 ^= sph_dec64le_aligned(buf + 128); \
} while (0)
#define INPUT_BUF104 do { \
a00 ^= sph_dec64le_aligned(buf + 0); \
a10 ^= sph_dec64le_aligned(buf + 8); \
a20 ^= sph_dec64le_aligned(buf + 16); \
a30 ^= sph_dec64le_aligned(buf + 24); \
a40 ^= sph_dec64le_aligned(buf + 32); \
a01 ^= sph_dec64le_aligned(buf + 40); \
a11 ^= sph_dec64le_aligned(buf + 48); \
a21 ^= sph_dec64le_aligned(buf + 56); \
a31 ^= sph_dec64le_aligned(buf + 64); \
a41 ^= sph_dec64le_aligned(buf + 72); \
a02 ^= sph_dec64le_aligned(buf + 80); \
a12 ^= sph_dec64le_aligned(buf + 88); \
a22 ^= sph_dec64le_aligned(buf + 96); \
} while (0)
#define INPUT_BUF72 do { \
a00 ^= sph_dec64le_aligned(buf + 0); \
a10 ^= sph_dec64le_aligned(buf + 8); \
a20 ^= sph_dec64le_aligned(buf + 16); \
a30 ^= sph_dec64le_aligned(buf + 24); \
a40 ^= sph_dec64le_aligned(buf + 32); \
a01 ^= sph_dec64le_aligned(buf + 40); \
a11 ^= sph_dec64le_aligned(buf + 48); \
a21 ^= sph_dec64le_aligned(buf + 56); \
a31 ^= sph_dec64le_aligned(buf + 64); \
} while (0)
#define INPUT_BUF(lim) do { \
a00 ^= sph_dec64le_aligned(buf + 0); \
a10 ^= sph_dec64le_aligned(buf + 8); \
a20 ^= sph_dec64le_aligned(buf + 16); \
a30 ^= sph_dec64le_aligned(buf + 24); \
a40 ^= sph_dec64le_aligned(buf + 32); \
a01 ^= sph_dec64le_aligned(buf + 40); \
a11 ^= sph_dec64le_aligned(buf + 48); \
a21 ^= sph_dec64le_aligned(buf + 56); \
a31 ^= sph_dec64le_aligned(buf + 64); \
if ((lim) == 72) \
break; \
a41 ^= sph_dec64le_aligned(buf + 72); \
a02 ^= sph_dec64le_aligned(buf + 80); \
a12 ^= sph_dec64le_aligned(buf + 88); \
a22 ^= sph_dec64le_aligned(buf + 96); \
if ((lim) == 104) \
break; \
a32 ^= sph_dec64le_aligned(buf + 104); \
a42 ^= sph_dec64le_aligned(buf + 112); \
a03 ^= sph_dec64le_aligned(buf + 120); \
a13 ^= sph_dec64le_aligned(buf + 128); \
if ((lim) == 136) \
break; \
a23 ^= sph_dec64le_aligned(buf + 136); \
} while (0)
#endif
#define DECL64(x) sph_u64 x
#define MOV64(d, s) (d = s)
#define XOR64(d, a, b) (d = a ^ b)
#define AND64(d, a, b) (d = a & b)
#define OR64(d, a, b) (d = a | b)
#define NOT64(d, s) (d = SPH_T64(~s))
#define ROL64(d, v, n) (d = SPH_ROTL64(v, n))
#define XOR64_IOTA XOR64
#else
static const struct {
sph_u32 high, low;
} RC[] = {
#if SPH_KECCAK_INTERLEAVE
{ SPH_C32(0x00000000), SPH_C32(0x00000001) },
{ SPH_C32(0x00000089), SPH_C32(0x00000000) },
{ SPH_C32(0x8000008B), SPH_C32(0x00000000) },
{ SPH_C32(0x80008080), SPH_C32(0x00000000) },
{ SPH_C32(0x0000008B), SPH_C32(0x00000001) },
{ SPH_C32(0x00008000), SPH_C32(0x00000001) },
{ SPH_C32(0x80008088), SPH_C32(0x00000001) },
{ SPH_C32(0x80000082), SPH_C32(0x00000001) },
{ SPH_C32(0x0000000B), SPH_C32(0x00000000) },
{ SPH_C32(0x0000000A), SPH_C32(0x00000000) },
{ SPH_C32(0x00008082), SPH_C32(0x00000001) },
{ SPH_C32(0x00008003), SPH_C32(0x00000000) },
{ SPH_C32(0x0000808B), SPH_C32(0x00000001) },
{ SPH_C32(0x8000000B), SPH_C32(0x00000001) },
{ SPH_C32(0x8000008A), SPH_C32(0x00000001) },
{ SPH_C32(0x80000081), SPH_C32(0x00000001) },
{ SPH_C32(0x80000081), SPH_C32(0x00000000) },
{ SPH_C32(0x80000008), SPH_C32(0x00000000) },
{ SPH_C32(0x00000083), SPH_C32(0x00000000) },
{ SPH_C32(0x80008003), SPH_C32(0x00000000) },
{ SPH_C32(0x80008088), SPH_C32(0x00000001) },
{ SPH_C32(0x80000088), SPH_C32(0x00000000) },
{ SPH_C32(0x00008000), SPH_C32(0x00000001) },
{ SPH_C32(0x80008082), SPH_C32(0x00000000) }
#else
{ SPH_C32(0x00000000), SPH_C32(0x00000001) },
{ SPH_C32(0x00000000), SPH_C32(0x00008082) },
{ SPH_C32(0x80000000), SPH_C32(0x0000808A) },
{ SPH_C32(0x80000000), SPH_C32(0x80008000) },
{ SPH_C32(0x00000000), SPH_C32(0x0000808B) },
{ SPH_C32(0x00000000), SPH_C32(0x80000001) },
{ SPH_C32(0x80000000), SPH_C32(0x80008081) },
{ SPH_C32(0x80000000), SPH_C32(0x00008009) },
{ SPH_C32(0x00000000), SPH_C32(0x0000008A) },
{ SPH_C32(0x00000000), SPH_C32(0x00000088) },
{ SPH_C32(0x00000000), SPH_C32(0x80008009) },
{ SPH_C32(0x00000000), SPH_C32(0x8000000A) },
{ SPH_C32(0x00000000), SPH_C32(0x8000808B) },
{ SPH_C32(0x80000000), SPH_C32(0x0000008B) },
{ SPH_C32(0x80000000), SPH_C32(0x00008089) },
{ SPH_C32(0x80000000), SPH_C32(0x00008003) },
{ SPH_C32(0x80000000), SPH_C32(0x00008002) },
{ SPH_C32(0x80000000), SPH_C32(0x00000080) },
{ SPH_C32(0x00000000), SPH_C32(0x0000800A) },
{ SPH_C32(0x80000000), SPH_C32(0x8000000A) },
{ SPH_C32(0x80000000), SPH_C32(0x80008081) },
{ SPH_C32(0x80000000), SPH_C32(0x00008080) },
{ SPH_C32(0x00000000), SPH_C32(0x80000001) },
{ SPH_C32(0x80000000), SPH_C32(0x80008008) }
#endif
};
#if SPH_KECCAK_INTERLEAVE
#define INTERLEAVE(xl, xh) do { \
sph_u32 l, h, t; \
l = (xl); h = (xh); \
t = (l ^ (l >> 1)) & SPH_C32(0x22222222); l ^= t ^ (t << 1); \
t = (h ^ (h >> 1)) & SPH_C32(0x22222222); h ^= t ^ (t << 1); \
t = (l ^ (l >> 2)) & SPH_C32(0x0C0C0C0C); l ^= t ^ (t << 2); \
t = (h ^ (h >> 2)) & SPH_C32(0x0C0C0C0C); h ^= t ^ (t << 2); \
t = (l ^ (l >> 4)) & SPH_C32(0x00F000F0); l ^= t ^ (t << 4); \
t = (h ^ (h >> 4)) & SPH_C32(0x00F000F0); h ^= t ^ (t << 4); \
t = (l ^ (l >> 8)) & SPH_C32(0x0000FF00); l ^= t ^ (t << 8); \
t = (h ^ (h >> 8)) & SPH_C32(0x0000FF00); h ^= t ^ (t << 8); \
t = (l ^ SPH_T32(h << 16)) & SPH_C32(0xFFFF0000); \
l ^= t; h ^= t >> 16; \
(xl) = l; (xh) = h; \
} while (0)
#define UNINTERLEAVE(xl, xh) do { \
sph_u32 l, h, t; \
l = (xl); h = (xh); \
t = (l ^ SPH_T32(h << 16)) & SPH_C32(0xFFFF0000); \
l ^= t; h ^= t >> 16; \
t = (l ^ (l >> 8)) & SPH_C32(0x0000FF00); l ^= t ^ (t << 8); \
t = (h ^ (h >> 8)) & SPH_C32(0x0000FF00); h ^= t ^ (t << 8); \
t = (l ^ (l >> 4)) & SPH_C32(0x00F000F0); l ^= t ^ (t << 4); \
t = (h ^ (h >> 4)) & SPH_C32(0x00F000F0); h ^= t ^ (t << 4); \
t = (l ^ (l >> 2)) & SPH_C32(0x0C0C0C0C); l ^= t ^ (t << 2); \
t = (h ^ (h >> 2)) & SPH_C32(0x0C0C0C0C); h ^= t ^ (t << 2); \
t = (l ^ (l >> 1)) & SPH_C32(0x22222222); l ^= t ^ (t << 1); \
t = (h ^ (h >> 1)) & SPH_C32(0x22222222); h ^= t ^ (t << 1); \
(xl) = l; (xh) = h; \
} while (0)
#else
#define INTERLEAVE(l, h)
#define UNINTERLEAVE(l, h)
#endif
#if SPH_KECCAK_NOCOPY
#define a00l (kc->u.narrow[2 * 0 + 0])
#define a00h (kc->u.narrow[2 * 0 + 1])
#define a10l (kc->u.narrow[2 * 1 + 0])
#define a10h (kc->u.narrow[2 * 1 + 1])
#define a20l (kc->u.narrow[2 * 2 + 0])
#define a20h (kc->u.narrow[2 * 2 + 1])
#define a30l (kc->u.narrow[2 * 3 + 0])
#define a30h (kc->u.narrow[2 * 3 + 1])
#define a40l (kc->u.narrow[2 * 4 + 0])
#define a40h (kc->u.narrow[2 * 4 + 1])
#define a01l (kc->u.narrow[2 * 5 + 0])
#define a01h (kc->u.narrow[2 * 5 + 1])
#define a11l (kc->u.narrow[2 * 6 + 0])
#define a11h (kc->u.narrow[2 * 6 + 1])
#define a21l (kc->u.narrow[2 * 7 + 0])
#define a21h (kc->u.narrow[2 * 7 + 1])
#define a31l (kc->u.narrow[2 * 8 + 0])
#define a31h (kc->u.narrow[2 * 8 + 1])
#define a41l (kc->u.narrow[2 * 9 + 0])
#define a41h (kc->u.narrow[2 * 9 + 1])
#define a02l (kc->u.narrow[2 * 10 + 0])
#define a02h (kc->u.narrow[2 * 10 + 1])
#define a12l (kc->u.narrow[2 * 11 + 0])
#define a12h (kc->u.narrow[2 * 11 + 1])
#define a22l (kc->u.narrow[2 * 12 + 0])
#define a22h (kc->u.narrow[2 * 12 + 1])
#define a32l (kc->u.narrow[2 * 13 + 0])
#define a32h (kc->u.narrow[2 * 13 + 1])
#define a42l (kc->u.narrow[2 * 14 + 0])
#define a42h (kc->u.narrow[2 * 14 + 1])
#define a03l (kc->u.narrow[2 * 15 + 0])
#define a03h (kc->u.narrow[2 * 15 + 1])
#define a13l (kc->u.narrow[2 * 16 + 0])
#define a13h (kc->u.narrow[2 * 16 + 1])
#define a23l (kc->u.narrow[2 * 17 + 0])
#define a23h (kc->u.narrow[2 * 17 + 1])
#define a33l (kc->u.narrow[2 * 18 + 0])
#define a33h (kc->u.narrow[2 * 18 + 1])
#define a43l (kc->u.narrow[2 * 19 + 0])
#define a43h (kc->u.narrow[2 * 19 + 1])
#define a04l (kc->u.narrow[2 * 20 + 0])
#define a04h (kc->u.narrow[2 * 20 + 1])
#define a14l (kc->u.narrow[2 * 21 + 0])
#define a14h (kc->u.narrow[2 * 21 + 1])
#define a24l (kc->u.narrow[2 * 22 + 0])
#define a24h (kc->u.narrow[2 * 22 + 1])
#define a34l (kc->u.narrow[2 * 23 + 0])
#define a34h (kc->u.narrow[2 * 23 + 1])
#define a44l (kc->u.narrow[2 * 24 + 0])
#define a44h (kc->u.narrow[2 * 24 + 1])
#define DECL_STATE
#define READ_STATE(state)
#define WRITE_STATE(state)
#define INPUT_BUF(size) do { \
size_t j; \
for (j = 0; j < (size); j += 8) { \
sph_u32 tl, th; \
tl = sph_dec32le_aligned(buf + j + 0); \
th = sph_dec32le_aligned(buf + j + 4); \
INTERLEAVE(tl, th); \
kc->u.narrow[(j >> 2) + 0] ^= tl; \
kc->u.narrow[(j >> 2) + 1] ^= th; \
} \
} while (0)
#define INPUT_BUF144 INPUT_BUF(144)
#define INPUT_BUF136 INPUT_BUF(136)
#define INPUT_BUF104 INPUT_BUF(104)
#define INPUT_BUF72 INPUT_BUF(72)
#else
#define DECL_STATE \
sph_u32 a00l, a00h, a01l, a01h, a02l, a02h, a03l, a03h, a04l, a04h; \
sph_u32 a10l, a10h, a11l, a11h, a12l, a12h, a13l, a13h, a14l, a14h; \
sph_u32 a20l, a20h, a21l, a21h, a22l, a22h, a23l, a23h, a24l, a24h; \
sph_u32 a30l, a30h, a31l, a31h, a32l, a32h, a33l, a33h, a34l, a34h; \
sph_u32 a40l, a40h, a41l, a41h, a42l, a42h, a43l, a43h, a44l, a44h;
#define READ_STATE(state) do { \
a00l = (state)->u.narrow[2 * 0 + 0]; \
a00h = (state)->u.narrow[2 * 0 + 1]; \
a10l = (state)->u.narrow[2 * 1 + 0]; \
a10h = (state)->u.narrow[2 * 1 + 1]; \
a20l = (state)->u.narrow[2 * 2 + 0]; \
a20h = (state)->u.narrow[2 * 2 + 1]; \
a30l = (state)->u.narrow[2 * 3 + 0]; \
a30h = (state)->u.narrow[2 * 3 + 1]; \
a40l = (state)->u.narrow[2 * 4 + 0]; \
a40h = (state)->u.narrow[2 * 4 + 1]; \
a01l = (state)->u.narrow[2 * 5 + 0]; \
a01h = (state)->u.narrow[2 * 5 + 1]; \
a11l = (state)->u.narrow[2 * 6 + 0]; \
a11h = (state)->u.narrow[2 * 6 + 1]; \
a21l = (state)->u.narrow[2 * 7 + 0]; \
a21h = (state)->u.narrow[2 * 7 + 1]; \
a31l = (state)->u.narrow[2 * 8 + 0]; \
a31h = (state)->u.narrow[2 * 8 + 1]; \
a41l = (state)->u.narrow[2 * 9 + 0]; \
a41h = (state)->u.narrow[2 * 9 + 1]; \
a02l = (state)->u.narrow[2 * 10 + 0]; \
a02h = (state)->u.narrow[2 * 10 + 1]; \
a12l = (state)->u.narrow[2 * 11 + 0]; \
a12h = (state)->u.narrow[2 * 11 + 1]; \
a22l = (state)->u.narrow[2 * 12 + 0]; \
a22h = (state)->u.narrow[2 * 12 + 1]; \
a32l = (state)->u.narrow[2 * 13 + 0]; \
a32h = (state)->u.narrow[2 * 13 + 1]; \
a42l = (state)->u.narrow[2 * 14 + 0]; \
a42h = (state)->u.narrow[2 * 14 + 1]; \
a03l = (state)->u.narrow[2 * 15 + 0]; \
a03h = (state)->u.narrow[2 * 15 + 1]; \
a13l = (state)->u.narrow[2 * 16 + 0]; \
a13h = (state)->u.narrow[2 * 16 + 1]; \
a23l = (state)->u.narrow[2 * 17 + 0]; \
a23h = (state)->u.narrow[2 * 17 + 1]; \
a33l = (state)->u.narrow[2 * 18 + 0]; \
a33h = (state)->u.narrow[2 * 18 + 1]; \
a43l = (state)->u.narrow[2 * 19 + 0]; \
a43h = (state)->u.narrow[2 * 19 + 1]; \
a04l = (state)->u.narrow[2 * 20 + 0]; \
a04h = (state)->u.narrow[2 * 20 + 1]; \
a14l = (state)->u.narrow[2 * 21 + 0]; \
a14h = (state)->u.narrow[2 * 21 + 1]; \
a24l = (state)->u.narrow[2 * 22 + 0]; \
a24h = (state)->u.narrow[2 * 22 + 1]; \
a34l = (state)->u.narrow[2 * 23 + 0]; \
a34h = (state)->u.narrow[2 * 23 + 1]; \
a44l = (state)->u.narrow[2 * 24 + 0]; \
a44h = (state)->u.narrow[2 * 24 + 1]; \
} while (0)
#define WRITE_STATE(state) do { \
(state)->u.narrow[2 * 0 + 0] = a00l; \
(state)->u.narrow[2 * 0 + 1] = a00h; \
(state)->u.narrow[2 * 1 + 0] = a10l; \
(state)->u.narrow[2 * 1 + 1] = a10h; \
(state)->u.narrow[2 * 2 + 0] = a20l; \
(state)->u.narrow[2 * 2 + 1] = a20h; \
(state)->u.narrow[2 * 3 + 0] = a30l; \
(state)->u.narrow[2 * 3 + 1] = a30h; \
(state)->u.narrow[2 * 4 + 0] = a40l; \
(state)->u.narrow[2 * 4 + 1] = a40h; \
(state)->u.narrow[2 * 5 + 0] = a01l; \
(state)->u.narrow[2 * 5 + 1] = a01h; \
(state)->u.narrow[2 * 6 + 0] = a11l; \
(state)->u.narrow[2 * 6 + 1] = a11h; \
(state)->u.narrow[2 * 7 + 0] = a21l; \
(state)->u.narrow[2 * 7 + 1] = a21h; \
(state)->u.narrow[2 * 8 + 0] = a31l; \
(state)->u.narrow[2 * 8 + 1] = a31h; \
(state)->u.narrow[2 * 9 + 0] = a41l; \
(state)->u.narrow[2 * 9 + 1] = a41h; \
(state)->u.narrow[2 * 10 + 0] = a02l; \
(state)->u.narrow[2 * 10 + 1] = a02h; \
(state)->u.narrow[2 * 11 + 0] = a12l; \
(state)->u.narrow[2 * 11 + 1] = a12h; \
(state)->u.narrow[2 * 12 + 0] = a22l; \
(state)->u.narrow[2 * 12 + 1] = a22h; \
(state)->u.narrow[2 * 13 + 0] = a32l; \
(state)->u.narrow[2 * 13 + 1] = a32h; \
(state)->u.narrow[2 * 14 + 0] = a42l; \
(state)->u.narrow[2 * 14 + 1] = a42h; \
(state)->u.narrow[2 * 15 + 0] = a03l; \
(state)->u.narrow[2 * 15 + 1] = a03h; \
(state)->u.narrow[2 * 16 + 0] = a13l; \
(state)->u.narrow[2 * 16 + 1] = a13h; \
(state)->u.narrow[2 * 17 + 0] = a23l; \
(state)->u.narrow[2 * 17 + 1] = a23h; \
(state)->u.narrow[2 * 18 + 0] = a33l; \
(state)->u.narrow[2 * 18 + 1] = a33h; \
(state)->u.narrow[2 * 19 + 0] = a43l; \
(state)->u.narrow[2 * 19 + 1] = a43h; \
(state)->u.narrow[2 * 20 + 0] = a04l; \
(state)->u.narrow[2 * 20 + 1] = a04h; \
(state)->u.narrow[2 * 21 + 0] = a14l; \
(state)->u.narrow[2 * 21 + 1] = a14h; \
(state)->u.narrow[2 * 22 + 0] = a24l; \
(state)->u.narrow[2 * 22 + 1] = a24h; \
(state)->u.narrow[2 * 23 + 0] = a34l; \
(state)->u.narrow[2 * 23 + 1] = a34h; \
(state)->u.narrow[2 * 24 + 0] = a44l; \
(state)->u.narrow[2 * 24 + 1] = a44h; \
} while (0)
#define READ64(d, off) do { \
sph_u32 tl, th; \
tl = sph_dec32le_aligned(buf + (off)); \
th = sph_dec32le_aligned(buf + (off) + 4); \
INTERLEAVE(tl, th); \
d ## l ^= tl; \
d ## h ^= th; \
} while (0)
#define INPUT_BUF144 do { \
READ64(a00, 0); \
READ64(a10, 8); \
READ64(a20, 16); \
READ64(a30, 24); \
READ64(a40, 32); \
READ64(a01, 40); \
READ64(a11, 48); \
READ64(a21, 56); \
READ64(a31, 64); \
READ64(a41, 72); \
READ64(a02, 80); \
READ64(a12, 88); \
READ64(a22, 96); \
READ64(a32, 104); \
READ64(a42, 112); \
READ64(a03, 120); \
READ64(a13, 128); \
READ64(a23, 136); \
} while (0)
#define INPUT_BUF136 do { \
READ64(a00, 0); \
READ64(a10, 8); \
READ64(a20, 16); \
READ64(a30, 24); \
READ64(a40, 32); \
READ64(a01, 40); \
READ64(a11, 48); \
READ64(a21, 56); \
READ64(a31, 64); \
READ64(a41, 72); \
READ64(a02, 80); \
READ64(a12, 88); \
READ64(a22, 96); \
READ64(a32, 104); \
READ64(a42, 112); \
READ64(a03, 120); \
READ64(a13, 128); \
} while (0)
#define INPUT_BUF104 do { \
READ64(a00, 0); \
READ64(a10, 8); \
READ64(a20, 16); \
READ64(a30, 24); \
READ64(a40, 32); \
READ64(a01, 40); \
READ64(a11, 48); \
READ64(a21, 56); \
READ64(a31, 64); \
READ64(a41, 72); \
READ64(a02, 80); \
READ64(a12, 88); \
READ64(a22, 96); \
} while (0)
#define INPUT_BUF72 do { \
READ64(a00, 0); \
READ64(a10, 8); \
READ64(a20, 16); \
READ64(a30, 24); \
READ64(a40, 32); \
READ64(a01, 40); \
READ64(a11, 48); \
READ64(a21, 56); \
READ64(a31, 64); \
} while (0)
#define INPUT_BUF(lim) do { \
READ64(a00, 0); \
READ64(a10, 8); \
READ64(a20, 16); \
READ64(a30, 24); \
READ64(a40, 32); \
READ64(a01, 40); \
READ64(a11, 48); \
READ64(a21, 56); \
READ64(a31, 64); \
if ((lim) == 72) \
break; \
READ64(a41, 72); \
READ64(a02, 80); \
READ64(a12, 88); \
READ64(a22, 96); \
if ((lim) == 104) \
break; \
READ64(a32, 104); \
READ64(a42, 112); \
READ64(a03, 120); \
READ64(a13, 128); \
if ((lim) == 136) \
break; \
READ64(a23, 136); \
} while (0)
#endif
#define DECL64(x) sph_u64 x ## l, x ## h
#define MOV64(d, s) (d ## l = s ## l, d ## h = s ## h)
#define XOR64(d, a, b) (d ## l = a ## l ^ b ## l, d ## h = a ## h ^ b ## h)
#define AND64(d, a, b) (d ## l = a ## l & b ## l, d ## h = a ## h & b ## h)
#define OR64(d, a, b) (d ## l = a ## l | b ## l, d ## h = a ## h | b ## h)
#define NOT64(d, s) (d ## l = SPH_T32(~s ## l), d ## h = SPH_T32(~s ## h))
#define ROL64(d, v, n) ROL64_ ## n(d, v)
#if SPH_KECCAK_INTERLEAVE
#define ROL64_odd1(d, v) do { \
sph_u32 tmp; \
tmp = v ## l; \
d ## l = SPH_T32(v ## h << 1) | (v ## h >> 31); \
d ## h = tmp; \
} while (0)
#define ROL64_odd63(d, v) do { \
sph_u32 tmp; \
tmp = SPH_T32(v ## l << 31) | (v ## l >> 1); \
d ## l = v ## h; \
d ## h = tmp; \
} while (0)
#define ROL64_odd(d, v, n) do { \
sph_u32 tmp; \
tmp = SPH_T32(v ## l << (n - 1)) | (v ## l >> (33 - n)); \
d ## l = SPH_T32(v ## h << n) | (v ## h >> (32 - n)); \
d ## h = tmp; \
} while (0)
#define ROL64_even(d, v, n) do { \
d ## l = SPH_T32(v ## l << n) | (v ## l >> (32 - n)); \
d ## h = SPH_T32(v ## h << n) | (v ## h >> (32 - n)); \
} while (0)
#define ROL64_0(d, v)
#define ROL64_1(d, v) ROL64_odd1(d, v)
#define ROL64_2(d, v) ROL64_even(d, v, 1)
#define ROL64_3(d, v) ROL64_odd( d, v, 2)
#define ROL64_4(d, v) ROL64_even(d, v, 2)
#define ROL64_5(d, v) ROL64_odd( d, v, 3)
#define ROL64_6(d, v) ROL64_even(d, v, 3)
#define ROL64_7(d, v) ROL64_odd( d, v, 4)
#define ROL64_8(d, v) ROL64_even(d, v, 4)
#define ROL64_9(d, v) ROL64_odd( d, v, 5)
#define ROL64_10(d, v) ROL64_even(d, v, 5)
#define ROL64_11(d, v) ROL64_odd( d, v, 6)
#define ROL64_12(d, v) ROL64_even(d, v, 6)
#define ROL64_13(d, v) ROL64_odd( d, v, 7)
#define ROL64_14(d, v) ROL64_even(d, v, 7)
#define ROL64_15(d, v) ROL64_odd( d, v, 8)
#define ROL64_16(d, v) ROL64_even(d, v, 8)
#define ROL64_17(d, v) ROL64_odd( d, v, 9)
#define ROL64_18(d, v) ROL64_even(d, v, 9)
#define ROL64_19(d, v) ROL64_odd( d, v, 10)
#define ROL64_20(d, v) ROL64_even(d, v, 10)
#define ROL64_21(d, v) ROL64_odd( d, v, 11)
#define ROL64_22(d, v) ROL64_even(d, v, 11)
#define ROL64_23(d, v) ROL64_odd( d, v, 12)
#define ROL64_24(d, v) ROL64_even(d, v, 12)
#define ROL64_25(d, v) ROL64_odd( d, v, 13)
#define ROL64_26(d, v) ROL64_even(d, v, 13)
#define ROL64_27(d, v) ROL64_odd( d, v, 14)
#define ROL64_28(d, v) ROL64_even(d, v, 14)
#define ROL64_29(d, v) ROL64_odd( d, v, 15)
#define ROL64_30(d, v) ROL64_even(d, v, 15)
#define ROL64_31(d, v) ROL64_odd( d, v, 16)
#define ROL64_32(d, v) ROL64_even(d, v, 16)
#define ROL64_33(d, v) ROL64_odd( d, v, 17)
#define ROL64_34(d, v) ROL64_even(d, v, 17)
#define ROL64_35(d, v) ROL64_odd( d, v, 18)
#define ROL64_36(d, v) ROL64_even(d, v, 18)
#define ROL64_37(d, v) ROL64_odd( d, v, 19)
#define ROL64_38(d, v) ROL64_even(d, v, 19)
#define ROL64_39(d, v) ROL64_odd( d, v, 20)
#define ROL64_40(d, v) ROL64_even(d, v, 20)
#define ROL64_41(d, v) ROL64_odd( d, v, 21)
#define ROL64_42(d, v) ROL64_even(d, v, 21)
#define ROL64_43(d, v) ROL64_odd( d, v, 22)
#define ROL64_44(d, v) ROL64_even(d, v, 22)
#define ROL64_45(d, v) ROL64_odd( d, v, 23)
#define ROL64_46(d, v) ROL64_even(d, v, 23)
#define ROL64_47(d, v) ROL64_odd( d, v, 24)
#define ROL64_48(d, v) ROL64_even(d, v, 24)
#define ROL64_49(d, v) ROL64_odd( d, v, 25)
#define ROL64_50(d, v) ROL64_even(d, v, 25)
#define ROL64_51(d, v) ROL64_odd( d, v, 26)
#define ROL64_52(d, v) ROL64_even(d, v, 26)
#define ROL64_53(d, v) ROL64_odd( d, v, 27)
#define ROL64_54(d, v) ROL64_even(d, v, 27)
#define ROL64_55(d, v) ROL64_odd( d, v, 28)
#define ROL64_56(d, v) ROL64_even(d, v, 28)
#define ROL64_57(d, v) ROL64_odd( d, v, 29)
#define ROL64_58(d, v) ROL64_even(d, v, 29)
#define ROL64_59(d, v) ROL64_odd( d, v, 30)
#define ROL64_60(d, v) ROL64_even(d, v, 30)
#define ROL64_61(d, v) ROL64_odd( d, v, 31)
#define ROL64_62(d, v) ROL64_even(d, v, 31)
#define ROL64_63(d, v) ROL64_odd63(d, v)
#else
#define ROL64_small(d, v, n) do { \
sph_u32 tmp; \
tmp = SPH_T32(v ## l << n) | (v ## h >> (32 - n)); \
d ## h = SPH_T32(v ## h << n) | (v ## l >> (32 - n)); \
d ## l = tmp; \
} while (0)
#define ROL64_0(d, v) 0
#define ROL64_1(d, v) ROL64_small(d, v, 1)
#define ROL64_2(d, v) ROL64_small(d, v, 2)
#define ROL64_3(d, v) ROL64_small(d, v, 3)
#define ROL64_4(d, v) ROL64_small(d, v, 4)
#define ROL64_5(d, v) ROL64_small(d, v, 5)
#define ROL64_6(d, v) ROL64_small(d, v, 6)
#define ROL64_7(d, v) ROL64_small(d, v, 7)
#define ROL64_8(d, v) ROL64_small(d, v, 8)
#define ROL64_9(d, v) ROL64_small(d, v, 9)
#define ROL64_10(d, v) ROL64_small(d, v, 10)
#define ROL64_11(d, v) ROL64_small(d, v, 11)
#define ROL64_12(d, v) ROL64_small(d, v, 12)
#define ROL64_13(d, v) ROL64_small(d, v, 13)
#define ROL64_14(d, v) ROL64_small(d, v, 14)
#define ROL64_15(d, v) ROL64_small(d, v, 15)
#define ROL64_16(d, v) ROL64_small(d, v, 16)
#define ROL64_17(d, v) ROL64_small(d, v, 17)
#define ROL64_18(d, v) ROL64_small(d, v, 18)
#define ROL64_19(d, v) ROL64_small(d, v, 19)
#define ROL64_20(d, v) ROL64_small(d, v, 20)
#define ROL64_21(d, v) ROL64_small(d, v, 21)
#define ROL64_22(d, v) ROL64_small(d, v, 22)
#define ROL64_23(d, v) ROL64_small(d, v, 23)
#define ROL64_24(d, v) ROL64_small(d, v, 24)
#define ROL64_25(d, v) ROL64_small(d, v, 25)
#define ROL64_26(d, v) ROL64_small(d, v, 26)
#define ROL64_27(d, v) ROL64_small(d, v, 27)
#define ROL64_28(d, v) ROL64_small(d, v, 28)
#define ROL64_29(d, v) ROL64_small(d, v, 29)
#define ROL64_30(d, v) ROL64_small(d, v, 30)
#define ROL64_31(d, v) ROL64_small(d, v, 31)
#define ROL64_32(d, v) do { \
sph_u32 tmp; \
tmp = v ## l; \
d ## l = v ## h; \
d ## h = tmp; \
} while (0)
#define ROL64_big(d, v, n) do { \
sph_u32 trl, trh; \
ROL64_small(tr, v, n); \
d ## h = trl; \
d ## l = trh; \
} while (0)
#define ROL64_33(d, v) ROL64_big(d, v, 1)
#define ROL64_34(d, v) ROL64_big(d, v, 2)
#define ROL64_35(d, v) ROL64_big(d, v, 3)
#define ROL64_36(d, v) ROL64_big(d, v, 4)
#define ROL64_37(d, v) ROL64_big(d, v, 5)
#define ROL64_38(d, v) ROL64_big(d, v, 6)
#define ROL64_39(d, v) ROL64_big(d, v, 7)
#define ROL64_40(d, v) ROL64_big(d, v, 8)
#define ROL64_41(d, v) ROL64_big(d, v, 9)
#define ROL64_42(d, v) ROL64_big(d, v, 10)
#define ROL64_43(d, v) ROL64_big(d, v, 11)
#define ROL64_44(d, v) ROL64_big(d, v, 12)
#define ROL64_45(d, v) ROL64_big(d, v, 13)
#define ROL64_46(d, v) ROL64_big(d, v, 14)
#define ROL64_47(d, v) ROL64_big(d, v, 15)
#define ROL64_48(d, v) ROL64_big(d, v, 16)
#define ROL64_49(d, v) ROL64_big(d, v, 17)
#define ROL64_50(d, v) ROL64_big(d, v, 18)
#define ROL64_51(d, v) ROL64_big(d, v, 19)
#define ROL64_52(d, v) ROL64_big(d, v, 20)
#define ROL64_53(d, v) ROL64_big(d, v, 21)
#define ROL64_54(d, v) ROL64_big(d, v, 22)
#define ROL64_55(d, v) ROL64_big(d, v, 23)
#define ROL64_56(d, v) ROL64_big(d, v, 24)
#define ROL64_57(d, v) ROL64_big(d, v, 25)
#define ROL64_58(d, v) ROL64_big(d, v, 26)
#define ROL64_59(d, v) ROL64_big(d, v, 27)
#define ROL64_60(d, v) ROL64_big(d, v, 28)
#define ROL64_61(d, v) ROL64_big(d, v, 29)
#define ROL64_62(d, v) ROL64_big(d, v, 30)
#define ROL64_63(d, v) ROL64_big(d, v, 31)
#endif
#define XOR64_IOTA(d, s, k) \
(d ## l = s ## l ^ k.low, d ## h = s ## h ^ k.high)
#endif
#define TH_ELT(t, c0, c1, c2, c3, c4, d0, d1, d2, d3, d4) do { \
DECL64(tt0); \
DECL64(tt1); \
DECL64(tt2); \
DECL64(tt3); \
XOR64(tt0, d0, d1); \
XOR64(tt1, d2, d3); \
XOR64(tt0, tt0, d4); \
XOR64(tt0, tt0, tt1); \
ROL64(tt0, tt0, 1); \
XOR64(tt2, c0, c1); \
XOR64(tt3, c2, c3); \
XOR64(tt0, tt0, c4); \
XOR64(tt2, tt2, tt3); \
XOR64(t, tt0, tt2); \
} while (0)
#define THETA(b00, b01, b02, b03, b04, b10, b11, b12, b13, b14, \
b20, b21, b22, b23, b24, b30, b31, b32, b33, b34, \
b40, b41, b42, b43, b44) \
do { \
DECL64(t0); \
DECL64(t1); \
DECL64(t2); \
DECL64(t3); \
DECL64(t4); \
TH_ELT(t0, b40, b41, b42, b43, b44, b10, b11, b12, b13, b14); \
TH_ELT(t1, b00, b01, b02, b03, b04, b20, b21, b22, b23, b24); \
TH_ELT(t2, b10, b11, b12, b13, b14, b30, b31, b32, b33, b34); \
TH_ELT(t3, b20, b21, b22, b23, b24, b40, b41, b42, b43, b44); \
TH_ELT(t4, b30, b31, b32, b33, b34, b00, b01, b02, b03, b04); \
XOR64(b00, b00, t0); \
XOR64(b01, b01, t0); \
XOR64(b02, b02, t0); \
XOR64(b03, b03, t0); \
XOR64(b04, b04, t0); \
XOR64(b10, b10, t1); \
XOR64(b11, b11, t1); \
XOR64(b12, b12, t1); \
XOR64(b13, b13, t1); \
XOR64(b14, b14, t1); \
XOR64(b20, b20, t2); \
XOR64(b21, b21, t2); \
XOR64(b22, b22, t2); \
XOR64(b23, b23, t2); \
XOR64(b24, b24, t2); \
XOR64(b30, b30, t3); \
XOR64(b31, b31, t3); \
XOR64(b32, b32, t3); \
XOR64(b33, b33, t3); \
XOR64(b34, b34, t3); \
XOR64(b40, b40, t4); \
XOR64(b41, b41, t4); \
XOR64(b42, b42, t4); \
XOR64(b43, b43, t4); \
XOR64(b44, b44, t4); \
} while (0)
#define RHO(b00, b01, b02, b03, b04, b10, b11, b12, b13, b14, \
b20, b21, b22, b23, b24, b30, b31, b32, b33, b34, \
b40, b41, b42, b43, b44) \
do { \
/* ROL64(b00, b00, 0); */ \
ROL64(b01, b01, 36); \
ROL64(b02, b02, 3); \
ROL64(b03, b03, 41); \
ROL64(b04, b04, 18); \
ROL64(b10, b10, 1); \
ROL64(b11, b11, 44); \
ROL64(b12, b12, 10); \
ROL64(b13, b13, 45); \
ROL64(b14, b14, 2); \
ROL64(b20, b20, 62); \
ROL64(b21, b21, 6); \
ROL64(b22, b22, 43); \
ROL64(b23, b23, 15); \
ROL64(b24, b24, 61); \
ROL64(b30, b30, 28); \
ROL64(b31, b31, 55); \
ROL64(b32, b32, 25); \
ROL64(b33, b33, 21); \
ROL64(b34, b34, 56); \
ROL64(b40, b40, 27); \
ROL64(b41, b41, 20); \
ROL64(b42, b42, 39); \
ROL64(b43, b43, 8); \
ROL64(b44, b44, 14); \
} while (0)
/*
* The KHI macro integrates the "lane complement" optimization. On input,
* some words are complemented:
* a00 a01 a02 a04 a13 a20 a21 a22 a30 a33 a34 a43
* On output, the following words are complemented:
* a04 a10 a20 a22 a23 a31
*
* The (implicit) permutation and the theta expansion will bring back
* the input mask for the next round.
*/
#define KHI_XO(d, a, b, c) do { \
DECL64(kt); \
OR64(kt, b, c); \
XOR64(d, a, kt); \
} while (0)
#define KHI_XA(d, a, b, c) do { \
DECL64(kt); \
AND64(kt, b, c); \
XOR64(d, a, kt); \
} while (0)
#define KHI(b00, b01, b02, b03, b04, b10, b11, b12, b13, b14, \
b20, b21, b22, b23, b24, b30, b31, b32, b33, b34, \
b40, b41, b42, b43, b44) \
do { \
DECL64(c0); \
DECL64(c1); \
DECL64(c2); \
DECL64(c3); \
DECL64(c4); \
DECL64(bnn); \
NOT64(bnn, b20); \
KHI_XO(c0, b00, b10, b20); \
KHI_XO(c1, b10, bnn, b30); \
KHI_XA(c2, b20, b30, b40); \
KHI_XO(c3, b30, b40, b00); \
KHI_XA(c4, b40, b00, b10); \
MOV64(b00, c0); \
MOV64(b10, c1); \
MOV64(b20, c2); \
MOV64(b30, c3); \
MOV64(b40, c4); \
NOT64(bnn, b41); \
KHI_XO(c0, b01, b11, b21); \
KHI_XA(c1, b11, b21, b31); \
KHI_XO(c2, b21, b31, bnn); \
KHI_XO(c3, b31, b41, b01); \
KHI_XA(c4, b41, b01, b11); \
MOV64(b01, c0); \
MOV64(b11, c1); \
MOV64(b21, c2); \
MOV64(b31, c3); \
MOV64(b41, c4); \
NOT64(bnn, b32); \
KHI_XO(c0, b02, b12, b22); \
KHI_XA(c1, b12, b22, b32); \
KHI_XA(c2, b22, bnn, b42); \
KHI_XO(c3, bnn, b42, b02); \
KHI_XA(c4, b42, b02, b12); \
MOV64(b02, c0); \
MOV64(b12, c1); \
MOV64(b22, c2); \
MOV64(b32, c3); \
MOV64(b42, c4); \
NOT64(bnn, b33); \
KHI_XA(c0, b03, b13, b23); \
KHI_XO(c1, b13, b23, b33); \
KHI_XO(c2, b23, bnn, b43); \
KHI_XA(c3, bnn, b43, b03); \
KHI_XO(c4, b43, b03, b13); \
MOV64(b03, c0); \
MOV64(b13, c1); \
MOV64(b23, c2); \
MOV64(b33, c3); \
MOV64(b43, c4); \
NOT64(bnn, b14); \
KHI_XA(c0, b04, bnn, b24); \
KHI_XO(c1, bnn, b24, b34); \
KHI_XA(c2, b24, b34, b44); \
KHI_XO(c3, b34, b44, b04); \
KHI_XA(c4, b44, b04, b14); \
MOV64(b04, c0); \
MOV64(b14, c1); \
MOV64(b24, c2); \
MOV64(b34, c3); \
MOV64(b44, c4); \
} while (0)
#define IOTA(r) XOR64_IOTA(a00, a00, r)
#define P0 a00, a01, a02, a03, a04, a10, a11, a12, a13, a14, a20, a21, \
a22, a23, a24, a30, a31, a32, a33, a34, a40, a41, a42, a43, a44
#define P1 a00, a30, a10, a40, a20, a11, a41, a21, a01, a31, a22, a02, \
a32, a12, a42, a33, a13, a43, a23, a03, a44, a24, a04, a34, a14
#define P2 a00, a33, a11, a44, a22, a41, a24, a02, a30, a13, a32, a10, \
a43, a21, a04, a23, a01, a34, a12, a40, a14, a42, a20, a03, a31
#define P3 a00, a23, a41, a14, a32, a24, a42, a10, a33, a01, a43, a11, \
a34, a02, a20, a12, a30, a03, a21, a44, a31, a04, a22, a40, a13
#define P4 a00, a12, a24, a31, a43, a42, a04, a11, a23, a30, a34, a41, \
a03, a10, a22, a21, a33, a40, a02, a14, a13, a20, a32, a44, a01
#define P5 a00, a21, a42, a13, a34, a04, a20, a41, a12, a33, a03, a24, \
a40, a11, a32, a02, a23, a44, a10, a31, a01, a22, a43, a14, a30
#define P6 a00, a02, a04, a01, a03, a20, a22, a24, a21, a23, a40, a42, \
a44, a41, a43, a10, a12, a14, a11, a13, a30, a32, a34, a31, a33
#define P7 a00, a10, a20, a30, a40, a22, a32, a42, a02, a12, a44, a04, \
a14, a24, a34, a11, a21, a31, a41, a01, a33, a43, a03, a13, a23
#define P8 a00, a11, a22, a33, a44, a32, a43, a04, a10, a21, a14, a20, \
a31, a42, a03, a41, a02, a13, a24, a30, a23, a34, a40, a01, a12
#define P9 a00, a41, a32, a23, a14, a43, a34, a20, a11, a02, a31, a22, \
a13, a04, a40, a24, a10, a01, a42, a33, a12, a03, a44, a30, a21
#define P10 a00, a24, a43, a12, a31, a34, a03, a22, a41, a10, a13, a32, \
a01, a20, a44, a42, a11, a30, a04, a23, a21, a40, a14, a33, a02
#define P11 a00, a42, a34, a21, a13, a03, a40, a32, a24, a11, a01, a43, \
a30, a22, a14, a04, a41, a33, a20, a12, a02, a44, a31, a23, a10
#define P12 a00, a04, a03, a02, a01, a40, a44, a43, a42, a41, a30, a34, \
a33, a32, a31, a20, a24, a23, a22, a21, a10, a14, a13, a12, a11
#define P13 a00, a20, a40, a10, a30, a44, a14, a34, a04, a24, a33, a03, \
a23, a43, a13, a22, a42, a12, a32, a02, a11, a31, a01, a21, a41
#define P14 a00, a22, a44, a11, a33, a14, a31, a03, a20, a42, a23, a40, \
a12, a34, a01, a32, a04, a21, a43, a10, a41, a13, a30, a02, a24
#define P15 a00, a32, a14, a41, a23, a31, a13, a40, a22, a04, a12, a44, \
a21, a03, a30, a43, a20, a02, a34, a11, a24, a01, a33, a10, a42
#define P16 a00, a43, a31, a24, a12, a13, a01, a44, a32, a20, a21, a14, \
a02, a40, a33, a34, a22, a10, a03, a41, a42, a30, a23, a11, a04
#define P17 a00, a34, a13, a42, a21, a01, a30, a14, a43, a22, a02, a31, \
a10, a44, a23, a03, a32, a11, a40, a24, a04, a33, a12, a41, a20
#define P18 a00, a03, a01, a04, a02, a30, a33, a31, a34, a32, a10, a13, \
a11, a14, a12, a40, a43, a41, a44, a42, a20, a23, a21, a24, a22
#define P19 a00, a40, a30, a20, a10, a33, a23, a13, a03, a43, a11, a01, \
a41, a31, a21, a44, a34, a24, a14, a04, a22, a12, a02, a42, a32
#define P20 a00, a44, a33, a22, a11, a23, a12, a01, a40, a34, a41, a30, \
a24, a13, a02, a14, a03, a42, a31, a20, a32, a21, a10, a04, a43
#define P21 a00, a14, a23, a32, a41, a12, a21, a30, a44, a03, a24, a33, \
a42, a01, a10, a31, a40, a04, a13, a22, a43, a02, a11, a20, a34
#define P22 a00, a31, a12, a43, a24, a21, a02, a33, a14, a40, a42, a23, \
a04, a30, a11, a13, a44, a20, a01, a32, a34, a10, a41, a22, a03
#define P23 a00, a13, a21, a34, a42, a02, a10, a23, a31, a44, a04, a12, \
a20, a33, a41, a01, a14, a22, a30, a43, a03, a11, a24, a32, a40
#define P1_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a30); \
MOV64(a30, a33); \
MOV64(a33, a23); \
MOV64(a23, a12); \
MOV64(a12, a21); \
MOV64(a21, a02); \
MOV64(a02, a10); \
MOV64(a10, a11); \
MOV64(a11, a41); \
MOV64(a41, a24); \
MOV64(a24, a42); \
MOV64(a42, a04); \
MOV64(a04, a20); \
MOV64(a20, a22); \
MOV64(a22, a32); \
MOV64(a32, a43); \
MOV64(a43, a34); \
MOV64(a34, a03); \
MOV64(a03, a40); \
MOV64(a40, a44); \
MOV64(a44, a14); \
MOV64(a14, a31); \
MOV64(a31, a13); \
MOV64(a13, t); \
} while (0)
#define P2_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a33); \
MOV64(a33, a12); \
MOV64(a12, a02); \
MOV64(a02, a11); \
MOV64(a11, a24); \
MOV64(a24, a04); \
MOV64(a04, a22); \
MOV64(a22, a43); \
MOV64(a43, a03); \
MOV64(a03, a44); \
MOV64(a44, a31); \
MOV64(a31, t); \
MOV64(t, a10); \
MOV64(a10, a41); \
MOV64(a41, a42); \
MOV64(a42, a20); \
MOV64(a20, a32); \
MOV64(a32, a34); \
MOV64(a34, a40); \
MOV64(a40, a14); \
MOV64(a14, a13); \
MOV64(a13, a30); \
MOV64(a30, a23); \
MOV64(a23, a21); \
MOV64(a21, t); \
} while (0)
#define P4_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a12); \
MOV64(a12, a11); \
MOV64(a11, a04); \
MOV64(a04, a43); \
MOV64(a43, a44); \
MOV64(a44, t); \
MOV64(t, a02); \
MOV64(a02, a24); \
MOV64(a24, a22); \
MOV64(a22, a03); \
MOV64(a03, a31); \
MOV64(a31, a33); \
MOV64(a33, t); \
MOV64(t, a10); \
MOV64(a10, a42); \
MOV64(a42, a32); \
MOV64(a32, a40); \
MOV64(a40, a13); \
MOV64(a13, a23); \
MOV64(a23, t); \
MOV64(t, a14); \
MOV64(a14, a30); \
MOV64(a30, a21); \
MOV64(a21, a41); \
MOV64(a41, a20); \
MOV64(a20, a34); \
MOV64(a34, t); \
} while (0)
#define P6_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a02); \
MOV64(a02, a04); \
MOV64(a04, a03); \
MOV64(a03, t); \
MOV64(t, a10); \
MOV64(a10, a20); \
MOV64(a20, a40); \
MOV64(a40, a30); \
MOV64(a30, t); \
MOV64(t, a11); \
MOV64(a11, a22); \
MOV64(a22, a44); \
MOV64(a44, a33); \
MOV64(a33, t); \
MOV64(t, a12); \
MOV64(a12, a24); \
MOV64(a24, a43); \
MOV64(a43, a31); \
MOV64(a31, t); \
MOV64(t, a13); \
MOV64(a13, a21); \
MOV64(a21, a42); \
MOV64(a42, a34); \
MOV64(a34, t); \
MOV64(t, a14); \
MOV64(a14, a23); \
MOV64(a23, a41); \
MOV64(a41, a32); \
MOV64(a32, t); \
} while (0)
#define P8_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a11); \
MOV64(a11, a43); \
MOV64(a43, t); \
MOV64(t, a02); \
MOV64(a02, a22); \
MOV64(a22, a31); \
MOV64(a31, t); \
MOV64(t, a03); \
MOV64(a03, a33); \
MOV64(a33, a24); \
MOV64(a24, t); \
MOV64(t, a04); \
MOV64(a04, a44); \
MOV64(a44, a12); \
MOV64(a12, t); \
MOV64(t, a10); \
MOV64(a10, a32); \
MOV64(a32, a13); \
MOV64(a13, t); \
MOV64(t, a14); \
MOV64(a14, a21); \
MOV64(a21, a20); \
MOV64(a20, t); \
MOV64(t, a23); \
MOV64(a23, a42); \
MOV64(a42, a40); \
MOV64(a40, t); \
MOV64(t, a30); \
MOV64(a30, a41); \
MOV64(a41, a34); \
MOV64(a34, t); \
} while (0)
#define P12_TO_P0 do { \
DECL64(t); \
MOV64(t, a01); \
MOV64(a01, a04); \
MOV64(a04, t); \
MOV64(t, a02); \
MOV64(a02, a03); \
MOV64(a03, t); \
MOV64(t, a10); \
MOV64(a10, a40); \
MOV64(a40, t); \
MOV64(t, a11); \
MOV64(a11, a44); \
MOV64(a44, t); \
MOV64(t, a12); \
MOV64(a12, a43); \
MOV64(a43, t); \
MOV64(t, a13); \
MOV64(a13, a42); \
MOV64(a42, t); \
MOV64(t, a14); \
MOV64(a14, a41); \
MOV64(a41, t); \
MOV64(t, a20); \
MOV64(a20, a30); \
MOV64(a30, t); \
MOV64(t, a21); \
MOV64(a21, a34); \
MOV64(a34, t); \
MOV64(t, a22); \
MOV64(a22, a33); \
MOV64(a33, t); \
MOV64(t, a23); \
MOV64(a23, a32); \
MOV64(a32, t); \
MOV64(t, a24); \
MOV64(a24, a31); \
MOV64(a31, t); \
} while (0)
#define LPAR (
#define RPAR )
#define KF_ELT(r, s, k) do { \
THETA LPAR P ## r RPAR; \
RHO LPAR P ## r RPAR; \
KHI LPAR P ## s RPAR; \
IOTA(k); \
} while (0)
#define DO(x) x
#define KECCAK_F_1600 DO(KECCAK_F_1600_)
#if SPH_KECCAK_UNROLL == 1
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j ++) { \
KF_ELT( 0, 1, RC[j + 0]); \
P1_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 2
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j += 2) { \
KF_ELT( 0, 1, RC[j + 0]); \
KF_ELT( 1, 2, RC[j + 1]); \
P2_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 4
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j += 4) { \
KF_ELT( 0, 1, RC[j + 0]); \
KF_ELT( 1, 2, RC[j + 1]); \
KF_ELT( 2, 3, RC[j + 2]); \
KF_ELT( 3, 4, RC[j + 3]); \
P4_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 6
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j += 6) { \
KF_ELT( 0, 1, RC[j + 0]); \
KF_ELT( 1, 2, RC[j + 1]); \
KF_ELT( 2, 3, RC[j + 2]); \
KF_ELT( 3, 4, RC[j + 3]); \
KF_ELT( 4, 5, RC[j + 4]); \
KF_ELT( 5, 6, RC[j + 5]); \
P6_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 8
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j += 8) { \
KF_ELT( 0, 1, RC[j + 0]); \
KF_ELT( 1, 2, RC[j + 1]); \
KF_ELT( 2, 3, RC[j + 2]); \
KF_ELT( 3, 4, RC[j + 3]); \
KF_ELT( 4, 5, RC[j + 4]); \
KF_ELT( 5, 6, RC[j + 5]); \
KF_ELT( 6, 7, RC[j + 6]); \
KF_ELT( 7, 8, RC[j + 7]); \
P8_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 12
#define KECCAK_F_1600_ do { \
int j; \
for (j = 0; j < 24; j += 12) { \
KF_ELT( 0, 1, RC[j + 0]); \
KF_ELT( 1, 2, RC[j + 1]); \
KF_ELT( 2, 3, RC[j + 2]); \
KF_ELT( 3, 4, RC[j + 3]); \
KF_ELT( 4, 5, RC[j + 4]); \
KF_ELT( 5, 6, RC[j + 5]); \
KF_ELT( 6, 7, RC[j + 6]); \
KF_ELT( 7, 8, RC[j + 7]); \
KF_ELT( 8, 9, RC[j + 8]); \
KF_ELT( 9, 10, RC[j + 9]); \
KF_ELT(10, 11, RC[j + 10]); \
KF_ELT(11, 12, RC[j + 11]); \
P12_TO_P0; \
} \
} while (0)
#elif SPH_KECCAK_UNROLL == 0
#define KECCAK_F_1600_ do { \
KF_ELT( 0, 1, RC[ 0]); \
KF_ELT( 1, 2, RC[ 1]); \
KF_ELT( 2, 3, RC[ 2]); \
KF_ELT( 3, 4, RC[ 3]); \
KF_ELT( 4, 5, RC[ 4]); \
KF_ELT( 5, 6, RC[ 5]); \
KF_ELT( 6, 7, RC[ 6]); \
KF_ELT( 7, 8, RC[ 7]); \
KF_ELT( 8, 9, RC[ 8]); \
KF_ELT( 9, 10, RC[ 9]); \
KF_ELT(10, 11, RC[10]); \
KF_ELT(11, 12, RC[11]); \
KF_ELT(12, 13, RC[12]); \
KF_ELT(13, 14, RC[13]); \
KF_ELT(14, 15, RC[14]); \
KF_ELT(15, 16, RC[15]); \
KF_ELT(16, 17, RC[16]); \
KF_ELT(17, 18, RC[17]); \
KF_ELT(18, 19, RC[18]); \
KF_ELT(19, 20, RC[19]); \
KF_ELT(20, 21, RC[20]); \
KF_ELT(21, 22, RC[21]); \
KF_ELT(22, 23, RC[22]); \
KF_ELT(23, 0, RC[23]); \
} while (0)
#else
#error Unimplemented unroll count for Keccak.
#endif
static void
keccak_init(sph_keccak_context *kc, unsigned out_size)
{
int i;
#if SPH_KECCAK_64
for (i = 0; i < 25; i ++)
kc->u.wide[i] = 0;
/*
* Initialization for the "lane complement".
*/
kc->u.wide[ 1] = SPH_C64(0xFFFFFFFFFFFFFFFF);
kc->u.wide[ 2] = SPH_C64(0xFFFFFFFFFFFFFFFF);
kc->u.wide[ 8] = SPH_C64(0xFFFFFFFFFFFFFFFF);
kc->u.wide[12] = SPH_C64(0xFFFFFFFFFFFFFFFF);
kc->u.wide[17] = SPH_C64(0xFFFFFFFFFFFFFFFF);
kc->u.wide[20] = SPH_C64(0xFFFFFFFFFFFFFFFF);
#else
for (i = 0; i < 50; i ++)
kc->u.narrow[i] = 0;
/*
* Initialization for the "lane complement".
* Note: since we set to all-one full 64-bit words,
* interleaving (if applicable) is a no-op.
*/
kc->u.narrow[ 2] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[ 3] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[ 4] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[ 5] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[16] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[17] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[24] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[25] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[34] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[35] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[40] = SPH_C32(0xFFFFFFFF);
kc->u.narrow[41] = SPH_C32(0xFFFFFFFF);
#endif
kc->ptr = 0;
kc->lim = 200 - (out_size >> 2);
}
static void
keccak_core(sph_keccak_context *kc, const void *data, size_t len, size_t lim)
{
unsigned char *buf;
size_t ptr;
DECL_STATE
buf = kc->buf;
ptr = kc->ptr;
if (len < (lim - ptr)) {
memcpy(buf + ptr, data, len);
kc->ptr = ptr + len;
return;
}
READ_STATE(kc);
while (len > 0) {
size_t clen;
clen = (lim - ptr);
if (clen > len)
clen = len;
memcpy(buf + ptr, data, clen);
ptr += clen;
data = (const unsigned char *)data + clen;
len -= clen;
if (ptr == lim) {
INPUT_BUF(lim);
KECCAK_F_1600;
ptr = 0;
}
}
WRITE_STATE(kc);
kc->ptr = ptr;
}
#if SPH_KECCAK_64
#define DEFCLOSE(d, lim) \
static void keccak_close ## d( \
sph_keccak_context *kc, unsigned ub, unsigned n, void *dst) \
{ \
unsigned eb; \
union { \
unsigned char tmp[lim + 1]; \
sph_u64 dummy; /* for alignment */ \
} u; \
size_t j; \
\
eb = (0x100 | (ub & 0xFF)) >> (8 - n); \
if (kc->ptr == (lim - 1)) { \
if (n == 7) { \
u.tmp[0] = eb; \
memset(u.tmp + 1, 0, lim - 1); \
u.tmp[lim] = 0x80; \
j = 1 + lim; \
} else { \
u.tmp[0] = eb | 0x80; \
j = 1; \
} \
} else { \
j = lim - kc->ptr; \
u.tmp[0] = eb; \
memset(u.tmp + 1, 0, j - 2); \
u.tmp[j - 1] = 0x80; \
} \
keccak_core(kc, u.tmp, j, lim); \
/* Finalize the "lane complement" */ \
kc->u.wide[ 1] = ~kc->u.wide[ 1]; \
kc->u.wide[ 2] = ~kc->u.wide[ 2]; \
kc->u.wide[ 8] = ~kc->u.wide[ 8]; \
kc->u.wide[12] = ~kc->u.wide[12]; \
kc->u.wide[17] = ~kc->u.wide[17]; \
kc->u.wide[20] = ~kc->u.wide[20]; \
for (j = 0; j < d; j += 8) \
sph_enc64le_aligned(u.tmp + j, kc->u.wide[j >> 3]); \
memcpy(dst, u.tmp, d); \
keccak_init(kc, (unsigned)d << 3); \
} \
#else
#define DEFCLOSE(d, lim) \
static void keccak_close ## d( \
sph_keccak_context *kc, unsigned ub, unsigned n, void *dst) \
{ \
unsigned eb; \
union { \
unsigned char tmp[lim + 1]; \
sph_u64 dummy; /* for alignment */ \
} u; \
size_t j; \
\
eb = (0x100 | (ub & 0xFF)) >> (8 - n); \
if (kc->ptr == (lim - 1)) { \
if (n == 7) { \
u.tmp[0] = eb; \
memset(u.tmp + 1, 0, lim - 1); \
u.tmp[lim] = 0x80; \
j = 1 + lim; \
} else { \
u.tmp[0] = eb | 0x80; \
j = 1; \
} \
} else { \
j = lim - kc->ptr; \
u.tmp[0] = eb; \
memset(u.tmp + 1, 0, j - 2); \
u.tmp[j - 1] = 0x80; \
} \
keccak_core(kc, u.tmp, j, lim); \
/* Finalize the "lane complement" */ \
kc->u.narrow[ 2] = ~kc->u.narrow[ 2]; \
kc->u.narrow[ 3] = ~kc->u.narrow[ 3]; \
kc->u.narrow[ 4] = ~kc->u.narrow[ 4]; \
kc->u.narrow[ 5] = ~kc->u.narrow[ 5]; \
kc->u.narrow[16] = ~kc->u.narrow[16]; \
kc->u.narrow[17] = ~kc->u.narrow[17]; \
kc->u.narrow[24] = ~kc->u.narrow[24]; \
kc->u.narrow[25] = ~kc->u.narrow[25]; \
kc->u.narrow[34] = ~kc->u.narrow[34]; \
kc->u.narrow[35] = ~kc->u.narrow[35]; \
kc->u.narrow[40] = ~kc->u.narrow[40]; \
kc->u.narrow[41] = ~kc->u.narrow[41]; \
/* un-interleave */ \
for (j = 0; j < 50; j += 2) \
UNINTERLEAVE(kc->u.narrow[j], kc->u.narrow[j + 1]); \
for (j = 0; j < d; j += 4) \
sph_enc32le_aligned(u.tmp + j, kc->u.narrow[j >> 2]); \
memcpy(dst, u.tmp, d); \
keccak_init(kc, (unsigned)d << 3); \
} \
#endif
DEFCLOSE(28, 144)
DEFCLOSE(32, 136)
DEFCLOSE(48, 104)
DEFCLOSE(64, 72)
/* see sph_keccak.h */
void
sph_keccak224_init(void *cc)
{
keccak_init(cc, 224);
}
/* see sph_keccak.h */
void
sph_keccak224(void *cc, const void *data, size_t len)
{
keccak_core(cc, data, len, 144);
}
/* see sph_keccak.h */
void
sph_keccak224_close(void *cc, void *dst)
{
sph_keccak224_addbits_and_close(cc, 0, 0, dst);
}
/* see sph_keccak.h */
void
sph_keccak224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
keccak_close28(cc, ub, n, dst);
}
/* see sph_keccak.h */
void
sph_keccak256_init(void *cc)
{
keccak_init(cc, 256);
}
/* see sph_keccak.h */
void
sph_keccak256(void *cc, const void *data, size_t len)
{
keccak_core(cc, data, len, 136);
}
/* see sph_keccak.h */
void
sph_keccak256_close(void *cc, void *dst)
{
sph_keccak256_addbits_and_close(cc, 0, 0, dst);
}
/* see sph_keccak.h */
void
sph_keccak256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
keccak_close32(cc, ub, n, dst);
}
/* see sph_keccak.h */
void
sph_keccak384_init(void *cc)
{
keccak_init(cc, 384);
}
/* see sph_keccak.h */
void
sph_keccak384(void *cc, const void *data, size_t len)
{
keccak_core(cc, data, len, 104);
}
/* see sph_keccak.h */
void
sph_keccak384_close(void *cc, void *dst)
{
sph_keccak384_addbits_and_close(cc, 0, 0, dst);
}
/* see sph_keccak.h */
void
sph_keccak384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
keccak_close48(cc, ub, n, dst);
}
/* see sph_keccak.h */
void
sph_keccak512_init(void *cc)
{
keccak_init(cc, 512);
}
/* see sph_keccak.h */
void
sph_keccak512(void *cc, const void *data, size_t len)
{
keccak_core(cc, data, len, 72);
}
/* see sph_keccak.h */
void
sph_keccak512_close(void *cc, void *dst)
{
sph_keccak512_addbits_and_close(cc, 0, 0, dst);
}
/* see sph_keccak.h */
void
sph_keccak512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
keccak_close64(cc, ub, n, dst);
}