/* serpent-avx2-amd64.S - AVX2 implementation of Serpent cipher
*
* Copyright (C) 2013-2015 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef __x86_64
#include <config.h>
#if (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) && defined(USE_SERPENT) && \
defined(ENABLE_AVX2_SUPPORT)
#ifdef HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS
# define ELF(...) __VA_ARGS__
#else
# define ELF(...) /*_*/
#endif
#ifdef __PIC__
# define RIP (%rip)
#else
# define RIP
#endif
/* struct serpent_context: */
#define ctx_keys 0
/* register macros */
#define CTX %rdi
/* vector registers */
#define RA0 %ymm0
#define RA1 %ymm1
#define RA2 %ymm2
#define RA3 %ymm3
#define RA4 %ymm4
#define RB0 %ymm5
#define RB1 %ymm6
#define RB2 %ymm7
#define RB3 %ymm8
#define RB4 %ymm9
#define RNOT %ymm10
#define RTMP0 %ymm11
#define RTMP1 %ymm12
#define RTMP2 %ymm13
#define RTMP3 %ymm14
#define RTMP4 %ymm15
#define RNOTx %xmm10
#define RTMP0x %xmm11
#define RTMP1x %xmm12
#define RTMP2x %xmm13
#define RTMP3x %xmm14
#define RTMP4x %xmm15
/**********************************************************************
helper macros
**********************************************************************/
/* vector 32-bit rotation to left */
#define vec_rol(reg, nleft, tmp) \
vpslld $(nleft), reg, tmp; \
vpsrld $(32 - (nleft)), reg, reg; \
vpor tmp, reg, reg;
/* vector 32-bit rotation to right */
#define vec_ror(reg, nright, tmp) \
vec_rol(reg, 32 - nright, tmp)
/* 4x4 32-bit integer matrix transpose */
#define transpose_4x4(x0, x1, x2, x3, t1, t2, t3) \
vpunpckhdq x1, x0, t2; \
vpunpckldq x1, x0, x0; \
\
vpunpckldq x3, x2, t1; \
vpunpckhdq x3, x2, x2; \
\
vpunpckhqdq t1, x0, x1; \
vpunpcklqdq t1, x0, x0; \
\
vpunpckhqdq x2, t2, x3; \
vpunpcklqdq x2, t2, x2;
/**********************************************************************
16-way serpent
**********************************************************************/
/*
* These are the S-Boxes of Serpent from following research paper.
*
* D. A. Osvik, “Speeding up Serpent,” in Third AES Candidate Conference,
* (New York, New York, USA), p. 317–329, National Institute of Standards and
* Technology, 2000.
*
* Paper is also available at: http://www.ii.uib.no/~osvik/pub/aes3.pdf
*
*/
#define SBOX0(r0, r1, r2, r3, r4) \
vpxor r0, r3, r3; vmovdqa r1, r4; \
vpand r3, r1, r1; vpxor r2, r4, r4; \
vpxor r0, r1, r1; vpor r3, r0, r0; \
vpxor r4, r0, r0; vpxor r3, r4, r4; \
vpxor r2, r3, r3; vpor r1, r2, r2; \
vpxor r4, r2, r2; vpxor RNOT, r4, r4; \
vpor r1, r4, r4; vpxor r3, r1, r1; \
vpxor r4, r1, r1; vpor r0, r3, r3; \
vpxor r3, r1, r1; vpxor r3, r4, r4;
#define SBOX0_INVERSE(r0, r1, r2, r3, r4) \
vpxor RNOT, r2, r2; vmovdqa r1, r4; \
vpor r0, r1, r1; vpxor RNOT, r4, r4; \
vpxor r2, r1, r1; vpor r4, r2, r2; \
vpxor r3, r1, r1; vpxor r4, r0, r0; \
vpxor r0, r2, r2; vpand r3, r0, r0; \
vpxor r0, r4, r4; vpor r1, r0, r0; \
vpxor r2, r0, r0; vpxor r4, r3, r3; \
vpxor r1, r2, r2; vpxor r0, r3, r3; \
vpxor r1, r3, r3; \
vpand r3, r2, r2; \
vpxor r2, r4, r4;
#define SBOX1(r0, r1, r2, r3, r4) \
vpxor RNOT, r0, r0; vpxor RNOT, r2, r2; \
vmovdqa r0, r4; vpand r1, r0, r0; \
vpxor r0, r2, r2; vpor r3, r0, r0; \
vpxor r2, r3, r3; vpxor r0, r1, r1; \
vpxor r4, r0, r0; vpor r1, r4, r4; \
vpxor r3, r1, r1; vpor r0, r2, r2; \
vpand r4, r2, r2; vpxor r1, r0, r0; \
vpand r2, r1, r1; \
vpxor r0, r1, r1; vpand r2, r0, r0; \
vpxor r4, r0, r0;
#define SBOX1_INVERSE(r0, r1, r2, r3, r4) \
vmovdqa r1, r4; vpxor r3, r1, r1; \
vpand r1, r3, r3; vpxor r2, r4, r4; \
vpxor r0, r3, r3; vpor r1, r0, r0; \
vpxor r3, r2, r2; vpxor r4, r0, r0; \
vpor r2, r0, r0; vpxor r3, r1, r1; \
vpxor r1, r0, r0; vpor r3, r1, r1; \
vpxor r0, r1, r1; vpxor RNOT, r4, r4; \
vpxor r1, r4, r4; vpor r0, r1, r1; \
vpxor r0, r1, r1; \
vpor r4, r1, r1; \
vpxor r1, r3, r3;
#define SBOX2(r0, r1, r2, r3, r4) \
vmovdqa r0, r4; vpand r2, r0, r0; \
vpxor r3, r0, r0; vpxor r1, r2, r2; \
vpxor r0, r2, r2; vpor r4, r3, r3; \
vpxor r1, r3, r3; vpxor r2, r4, r4; \
vmovdqa r3, r1; vpor r4, r3, r3; \
vpxor r0, r3, r3; vpand r1, r0, r0; \
vpxor r0, r4, r4; vpxor r3, r1, r1; \
vpxor r4, r1, r1; vpxor RNOT, r4, r4;
#define SBOX2_INVERSE(r0, r1, r2, r3, r4) \
vpxor r3, r2, r2; vpxor r0, r3, r3; \
vmovdqa r3, r4; vpand r2, r3, r3; \
vpxor r1, r3, r3; vpor r2, r1, r1; \
vpxor r4, r1, r1; vpand r3, r4, r4; \
vpxor r3, r2, r2; vpand r0, r4, r4; \
vpxor r2, r4, r4; vpand r1, r2, r2; \
vpor r0, r2, r2; vpxor RNOT, r3, r3; \
vpxor r3, r2, r2; vpxor r3, r0, r0; \
vpand r1, r0, r0; vpxor r4, r3, r3; \
vpxor r0, r3, r3;
#define SBOX3(r0, r1, r2, r3, r4) \
vmovdqa r0, r4; vpor r3, r0, r0; \
vpxor r1, r3, r3; vpand r4, r1, r1; \
vpxor r2, r4, r4; vpxor r3, r2, r2; \
vpand r0, r3, r3; vpor r1, r4, r4; \
vpxor r4, r3, r3; vpxor r1, r0, r0; \
vpand r0, r4, r4; vpxor r3, r1, r1; \
vpxor r2, r4, r4; vpor r0, r1, r1; \
vpxor r2, r1, r1; vpxor r3, r0, r0; \
vmovdqa r1, r2; vpor r3, r1, r1; \
vpxor r0, r1, r1;
#define SBOX3_INVERSE(r0, r1, r2, r3, r4) \
vmovdqa r2, r4; vpxor r1, r2, r2; \
vpxor r2, r0, r0; vpand r2, r4, r4; \
vpxor r0, r4, r4; vpand r1, r0, r0; \
vpxor r3, r1, r1; vpor r4, r3, r3; \
vpxor r3, r2, r2; vpxor r3, r0, r0; \
vpxor r4, r1, r1; vpand r2, r3, r3; \
vpxor r1, r3, r3; vpxor r0, r1, r1; \
vpor r2, r1, r1; vpxor r3, r0, r0; \
vpxor r4, r1, r1; \
vpxor r1, r0, r0;
#define SBOX4(r0, r1, r2, r3, r4) \
vpxor r3, r1, r1; vpxor RNOT, r3, r3; \
vpxor r3, r2, r2; vpxor r0, r3, r3; \
vmovdqa r1, r4; vpand r3, r1, r1; \
vpxor r2, r1, r1; vpxor r3, r4, r4; \
vpxor r4, r0, r0; vpand r4, r2, r2; \
vpxor r0, r2, r2; vpand r1, r0, r0; \
vpxor r0, r3, r3; vpor r1, r4, r4; \
vpxor r0, r4, r4; vpor r3, r0, r0; \
vpxor r2, r0, r0; vpand r3, r2, r2; \
vpxor RNOT, r0, r0; vpxor r2, r4, r4;
#define SBOX4_INVERSE(r0, r1, r2, r3, r4) \
vmovdqa r2, r4; vpand r3, r2, r2; \
vpxor r1, r2, r2; vpor r3, r1, r1; \
vpand r0, r1, r1; vpxor r2, r4, r4; \
vpxor r1, r4, r4; vpand r2, r1, r1; \
vpxor RNOT, r0, r0; vpxor r4, r3, r3; \
vpxor r3, r1, r1; vpand r0, r3, r3; \
vpxor r2, r3, r3; vpxor r1, r0, r0; \
vpand r0, r2, r2; vpxor r0, r3, r3; \
vpxor r4, r2, r2; \
vpor r3, r2, r2; vpxor r0, r3, r3; \
vpxor r1, r2, r2;
#define SBOX5(r0, r1, r2, r3, r4) \
vpxor r1, r0, r0; vpxor r3, r1, r1; \
vpxor RNOT, r3, r3; vmovdqa r1, r4; \
vpand r0, r1, r1; vpxor r3, r2, r2; \
vpxor r2, r1, r1; vpor r4, r2, r2; \
vpxor r3, r4, r4; vpand r1, r3, r3; \
vpxor r0, r3, r3; vpxor r1, r4, r4; \
vpxor r2, r4, r4; vpxor r0, r2, r2; \
vpand r3, r0, r0; vpxor RNOT, r2, r2; \
vpxor r4, r0, r0; vpor r3, r4, r4; \
vpxor r4, r2, r2;
#define SBOX5_INVERSE(r0, r1, r2, r3, r4) \
vpxor RNOT, r1, r1; vmovdqa r3, r4; \
vpxor r1, r2, r2; vpor r0, r3, r3; \
vpxor r2, r3, r3; vpor r1, r2, r2; \
vpand r0, r2, r2; vpxor r3, r4, r4; \
vpxor r4, r2, r2; vpor r0, r4, r4; \
vpxor r1, r4, r4; vpand r2, r1, r1; \
vpxor r3, r1, r1; vpxor r2, r4, r4; \
vpand r4, r3, r3; vpxor r1, r4, r4; \
vpxor r4, r3, r3; vpxor RNOT, r4, r4; \
vpxor r0, r3, r3;
#define SBOX6(r0, r1, r2, r3, r4) \
vpxor RNOT, r2, r2; vmovdqa r3, r4; \
vpand r0, r3, r3; vpxor r4, r0, r0; \
vpxor r2, r3, r3; vpor r4, r2, r2; \
vpxor r3, r1, r1; vpxor r0, r2, r2; \
vpor r1, r0, r0; vpxor r1, r2, r2; \
vpxor r0, r4, r4; vpor r3, r0, r0; \
vpxor r2, r0, r0; vpxor r3, r4, r4; \
vpxor r0, r4, r4; vpxor RNOT, r3, r3; \
vpand r4, r2, r2; \
vpxor r3, r2, r2;
#define SBOX6_INVERSE(r0, r1, r2, r3, r4) \
vpxor r2, r0, r0; vmovdqa r2, r4; \
vpand r0, r2, r2; vpxor r3, r4, r4; \
vpxor RNOT, r2, r2; vpxor r1, r3, r3; \
vpxor r3, r2, r2; vpor r0, r4, r4; \
vpxor r2, r0, r0; vpxor r4, r3, r3; \
vpxor r1, r4, r4; vpand r3, r1, r1; \
vpxor r0, r1, r1; vpxor r3, r0, r0; \
vpor r2, r0, r0; vpxor r1, r3, r3; \
vpxor r0, r4, r4;
#define SBOX7(r0, r1, r2, r3, r4) \
vmovdqa r1, r4; vpor r2, r1, r1; \
vpxor r3, r1, r1; vpxor r2, r4, r4; \
vpxor r1, r2, r2; vpor r4, r3, r3; \
vpand r0, r3, r3; vpxor r2, r4, r4; \
vpxor r1, r3, r3; vpor r4, r1, r1; \
vpxor r0, r1, r1; vpor r4, r0, r0; \
vpxor r2, r0, r0; vpxor r4, r1, r1; \
vpxor r1, r2, r2; vpand r0, r1, r1; \
vpxor r4, r1, r1; vpxor RNOT, r2, r2; \
vpor r0, r2, r2; \
vpxor r2, r4, r4;
#define SBOX7_INVERSE(r0, r1, r2, r3, r4) \
vmovdqa r2, r4; vpxor r0, r2, r2; \
vpand r3, r0, r0; vpor r3, r4, r4; \
vpxor RNOT, r2, r2; vpxor r1, r3, r3; \
vpor r0, r1, r1; vpxor r2, r0, r0; \
vpand r4, r2, r2; vpand r4, r3, r3; \
vpxor r2, r1, r1; vpxor r0, r2, r2; \
vpor r2, r0, r0; vpxor r1, r4, r4; \
vpxor r3, r0, r0; vpxor r4, r3, r3; \
vpor r0, r4, r4; vpxor r2, r3, r3; \
vpxor r2, r4, r4;
/* Apply SBOX number WHICH to to the block. */
#define SBOX(which, r0, r1, r2, r3, r4) \
SBOX##which (r0, r1, r2, r3, r4)
/* Apply inverse SBOX number WHICH to to the block. */
#define SBOX_INVERSE(which, r0, r1, r2, r3, r4) \
SBOX##which##_INVERSE (r0, r1, r2, r3, r4)
/* XOR round key into block state in r0,r1,r2,r3. r4 used as temporary. */
#define BLOCK_XOR_KEY(r0, r1, r2, r3, r4, round) \
vpbroadcastd (ctx_keys + (round) * 16 + 0 * 4)(CTX), r4; \
vpxor r4, r0, r0; \
vpbroadcastd (ctx_keys + (round) * 16 + 1 * 4)(CTX), r4; \
vpxor r4, r1, r1; \
vpbroadcastd (ctx_keys + (round) * 16 + 2 * 4)(CTX), r4; \
vpxor r4, r2, r2; \
vpbroadcastd (ctx_keys + (round) * 16 + 3 * 4)(CTX), r4; \
vpxor r4, r3, r3;
/* Apply the linear transformation to BLOCK. */
#define LINEAR_TRANSFORMATION(r0, r1, r2, r3, r4) \
vec_rol(r0, 13, r4); \
vec_rol(r2, 3, r4); \
vpxor r0, r1, r1; \
vpxor r2, r1, r1; \
vpslld $3, r0, r4; \
vpxor r2, r3, r3; \
vpxor r4, r3, r3; \
vec_rol(r1, 1, r4); \
vec_rol(r3, 7, r4); \
vpxor r1, r0, r0; \
vpxor r3, r0, r0; \
vpslld $7, r1, r4; \
vpxor r3, r2, r2; \
vpxor r4, r2, r2; \
vec_rol(r0, 5, r4); \
vec_rol(r2, 22, r4);
/* Apply the inverse linear transformation to BLOCK. */
#define LINEAR_TRANSFORMATION_INVERSE(r0, r1, r2, r3, r4) \
vec_ror(r2, 22, r4); \
vec_ror(r0, 5, r4); \
vpslld $7, r1, r4; \
vpxor r3, r2, r2; \
vpxor r4, r2, r2; \
vpxor r1, r0, r0; \
vpxor r3, r0, r0; \
vec_ror(r3, 7, r4); \
vec_ror(r1, 1, r4); \
vpslld $3, r0, r4; \
vpxor r2, r3, r3; \
vpxor r4, r3, r3; \
vpxor r0, r1, r1; \
vpxor r2, r1, r1; \
vec_ror(r2, 3, r4); \
vec_ror(r0, 13, r4);
/* Apply a Serpent round to sixteen parallel blocks. This macro increments
`round'. */
#define ROUND(round, which, a0, a1, a2, a3, a4, na0, na1, na2, na3, na4, \
b0, b1, b2, b3, b4, nb0, nb1, nb2, nb3, nb4) \
BLOCK_XOR_KEY (a0, a1, a2, a3, a4, round); \
SBOX (which, a0, a1, a2, a3, a4); \
BLOCK_XOR_KEY (b0, b1, b2, b3, b4, round); \
SBOX (which, b0, b1, b2, b3, b4); \
LINEAR_TRANSFORMATION (na0, na1, na2, na3, na4); \
LINEAR_TRANSFORMATION (nb0, nb1, nb2, nb3, nb4);
/* Apply the last Serpent round to sixteen parallel blocks. This macro
increments `round'. */
#define ROUND_LAST(round, which, a0, a1, a2, a3, a4, na0, na1, na2, na3, na4, \
b0, b1, b2, b3, b4, nb0, nb1, nb2, nb3, nb4) \
BLOCK_XOR_KEY (a0, a1, a2, a3, a4, round); \
SBOX (which, a0, a1, a2, a3, a4); \
BLOCK_XOR_KEY (b0, b1, b2, b3, b4, round); \
SBOX (which, b0, b1, b2, b3, b4); \
BLOCK_XOR_KEY (na0, na1, na2, na3, na4, ((round) + 1)); \
BLOCK_XOR_KEY (nb0, nb1, nb2, nb3, nb4, ((round) + 1));
/* Apply an inverse Serpent round to sixteen parallel blocks. This macro
increments `round'. */
#define ROUND_INVERSE(round, which, a0, a1, a2, a3, a4, \
na0, na1, na2, na3, na4, \
b0, b1, b2, b3, b4, \
nb0, nb1, nb2, nb3, nb4) \
LINEAR_TRANSFORMATION_INVERSE (a0, a1, a2, a3, a4); \
LINEAR_TRANSFORMATION_INVERSE (b0, b1, b2, b3, b4); \
SBOX_INVERSE (which, a0, a1, a2, a3, a4); \
BLOCK_XOR_KEY (na0, na1, na2, na3, na4, round); \
SBOX_INVERSE (which, b0, b1, b2, b3, b4); \
BLOCK_XOR_KEY (nb0, nb1, nb2, nb3, nb4, round);
/* Apply the first inverse Serpent round to sixteen parallel blocks. This macro
increments `round'. */
#define ROUND_FIRST_INVERSE(round, which, a0, a1, a2, a3, a4, \
na0, na1, na2, na3, na4, \
b0, b1, b2, b3, b4, \
nb0, nb1, nb2, nb3, nb4) \
BLOCK_XOR_KEY (a0, a1, a2, a3, a4, ((round) + 1)); \
BLOCK_XOR_KEY (b0, b1, b2, b3, b4, ((round) + 1)); \
SBOX_INVERSE (which, a0, a1, a2, a3, a4); \
BLOCK_XOR_KEY (na0, na1, na2, na3, na4, round); \
SBOX_INVERSE (which, b0, b1, b2, b3, b4); \
BLOCK_XOR_KEY (nb0, nb1, nb2, nb3, nb4, round);
.text
.align 8
ELF(.type __serpent_enc_blk16,@function;)
__serpent_enc_blk16:
/* input:
* %rdi: ctx, CTX
* RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel
* plaintext blocks
* output:
* RA4, RA1, RA2, RA0, RB4, RB1, RB2, RB0: sixteen parallel
* ciphertext blocks
*/
vpcmpeqd RNOT, RNOT, RNOT;
transpose_4x4(RA0, RA1, RA2, RA3, RA4, RTMP0, RTMP1);
transpose_4x4(RB0, RB1, RB2, RB3, RB4, RTMP0, RTMP1);
ROUND (0, 0, RA0, RA1, RA2, RA3, RA4, RA1, RA4, RA2, RA0, RA3,
RB0, RB1, RB2, RB3, RB4, RB1, RB4, RB2, RB0, RB3);
ROUND (1, 1, RA1, RA4, RA2, RA0, RA3, RA2, RA1, RA0, RA4, RA3,
RB1, RB4, RB2, RB0, RB3, RB2, RB1, RB0, RB4, RB3);
ROUND (2, 2, RA2, RA1, RA0, RA4, RA3, RA0, RA4, RA1, RA3, RA2,
RB2, RB1, RB0, RB4, RB3, RB0, RB4, RB1, RB3, RB2);
ROUND (3, 3, RA0, RA4, RA1, RA3, RA2, RA4, RA1, RA3, RA2, RA0,
RB0, RB4, RB1, RB3, RB2, RB4, RB1, RB3, RB2, RB0);
ROUND (4, 4, RA4, RA1, RA3, RA2, RA0, RA1, RA0, RA4, RA2, RA3,
RB4, RB1, RB3, RB2, RB0, RB1, RB0, RB4, RB2, RB3);
ROUND (5, 5, RA1, RA0, RA4, RA2, RA3, RA0, RA2, RA1, RA4, RA3,
RB1, RB0, RB4, RB2, RB3, RB0, RB2, RB1, RB4, RB3);
ROUND (6, 6, RA0, RA2, RA1, RA4, RA3, RA0, RA2, RA3, RA1, RA4,
RB0, RB2, RB1, RB4, RB3, RB0, RB2, RB3, RB1, RB4);
ROUND (7, 7, RA0, RA2, RA3, RA1, RA4, RA4, RA1, RA2, RA0, RA3,
RB0, RB2, RB3, RB1, RB4, RB4, RB1, RB2, RB0, RB3);
ROUND (8, 0, RA4, RA1, RA2, RA0, RA3, RA1, RA3, RA2, RA4, RA0,
RB4, RB1, RB2, RB0, RB3, RB1, RB3, RB2, RB4, RB0);
ROUND (9, 1, RA1, RA3, RA2, RA4, RA0, RA2, RA1, RA4, RA3, RA0,
RB1, RB3, RB2, RB4, RB0, RB2, RB1, RB4, RB3, RB0);
ROUND (10, 2, RA2, RA1, RA4, RA3, RA0, RA4, RA3, RA1, RA0, RA2,
RB2, RB1, RB4, RB3, RB0, RB4, RB3, RB1, RB0, RB2);
ROUND (11, 3, RA4, RA3, RA1, RA0, RA2, RA3, RA1, RA0, RA2, RA4,
RB4, RB3, RB1, RB0, RB2, RB3, RB1, RB0, RB2, RB4);
ROUND (12, 4, RA3, RA1, RA0, RA2, RA4, RA1, RA4, RA3, RA2, RA0,
RB3, RB1, RB0, RB2, RB4, RB1, RB4, RB3, RB2, RB0);
ROUND (13, 5, RA1, RA4, RA3, RA2, RA0, RA4, RA2, RA1, RA3, RA0,
RB1, RB4, RB3, RB2, RB0, RB4, RB2, RB1, RB3, RB0);
ROUND (14, 6, RA4, RA2, RA1, RA3, RA0, RA4, RA2, RA0, RA1, RA3,
RB4, RB2, RB1, RB3, RB0, RB4, RB2, RB0, RB1, RB3);
ROUND (15, 7, RA4, RA2, RA0, RA1, RA3, RA3, RA1, RA2, RA4, RA0,
RB4, RB2, RB0, RB1, RB3, RB3, RB1, RB2, RB4, RB0);
ROUND (16, 0, RA3, RA1, RA2, RA4, RA0, RA1, RA0, RA2, RA3, RA4,
RB3, RB1, RB2, RB4, RB0, RB1, RB0, RB2, RB3, RB4);
ROUND (17, 1, RA1, RA0, RA2, RA3, RA4, RA2, RA1, RA3, RA0, RA4,
RB1, RB0, RB2, RB3, RB4, RB2, RB1, RB3, RB0, RB4);
ROUND (18, 2, RA2, RA1, RA3, RA0, RA4, RA3, RA0, RA1, RA4, RA2,
RB2, RB1, RB3, RB0, RB4, RB3, RB0, RB1, RB4, RB2);
ROUND (19, 3, RA3, RA0, RA1, RA4, RA2, RA0, RA1, RA4, RA2, RA3,
RB3, RB0, RB1, RB4, RB2, RB0, RB1, RB4, RB2, RB3);
ROUND (20, 4, RA0, RA1, RA4, RA2, RA3, RA1, RA3, RA0, RA2, RA4,
RB0, RB1, RB4, RB2, RB3, RB1, RB3, RB0, RB2, RB4);
ROUND (21, 5, RA1, RA3, RA0, RA2, RA4, RA3, RA2, RA1, RA0, RA4,
RB1, RB3, RB0, RB2, RB4, RB3, RB2, RB1, RB0, RB4);
ROUND (22, 6, RA3, RA2, RA1, RA0, RA4, RA3, RA2, RA4, RA1, RA0,
RB3, RB2, RB1, RB0, RB4, RB3, RB2, RB4, RB1, RB0);
ROUND (23, 7, RA3, RA2, RA4, RA1, RA0, RA0, RA1, RA2, RA3, RA4,
RB3, RB2, RB4, RB1, RB0, RB0, RB1, RB2, RB3, RB4);
ROUND (24, 0, RA0, RA1, RA2, RA3, RA4, RA1, RA4, RA2, RA0, RA3,
RB0, RB1, RB2, RB3, RB4, RB1, RB4, RB2, RB0, RB3);
ROUND (25, 1, RA1, RA4, RA2, RA0, RA3, RA2, RA1, RA0, RA4, RA3,
RB1, RB4, RB2, RB0, RB3, RB2, RB1, RB0, RB4, RB3);
ROUND (26, 2, RA2, RA1, RA0, RA4, RA3, RA0, RA4, RA1, RA3, RA2,
RB2, RB1, RB0, RB4, RB3, RB0, RB4, RB1, RB3, RB2);
ROUND (27, 3, RA0, RA4, RA1, RA3, RA2, RA4, RA1, RA3, RA2, RA0,
RB0, RB4, RB1, RB3, RB2, RB4, RB1, RB3, RB2, RB0);
ROUND (28, 4, RA4, RA1, RA3, RA2, RA0, RA1, RA0, RA4, RA2, RA3,
RB4, RB1, RB3, RB2, RB0, RB1, RB0, RB4, RB2, RB3);
ROUND (29, 5, RA1, RA0, RA4, RA2, RA3, RA0, RA2, RA1, RA4, RA3,
RB1, RB0, RB4, RB2, RB3, RB0, RB2, RB1, RB4, RB3);
ROUND (30, 6, RA0, RA2, RA1, RA4, RA3, RA0, RA2, RA3, RA1, RA4,
RB0, RB2, RB1, RB4, RB3, RB0, RB2, RB3, RB1, RB4);
ROUND_LAST (31, 7, RA0, RA2, RA3, RA1, RA4, RA4, RA1, RA2, RA0, RA3,
RB0, RB2, RB3, RB1, RB4, RB4, RB1, RB2, RB0, RB3);
transpose_4x4(RA4, RA1, RA2, RA0, RA3, RTMP0, RTMP1);
transpose_4x4(RB4, RB1, RB2, RB0, RB3, RTMP0, RTMP1);
ret;
ELF(.size __serpent_enc_blk16,.-__serpent_enc_blk16;)
.align 8
ELF(.type __serpent_dec_blk16,@function;)
__serpent_dec_blk16:
/* input:
* %rdi: ctx, CTX
* RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel
* ciphertext blocks
* output:
* RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel
* plaintext blocks
*/
vpcmpeqd RNOT, RNOT, RNOT;
transpose_4x4(RA0, RA1, RA2, RA3, RA4, RTMP0, RTMP1);
transpose_4x4(RB0, RB1, RB2, RB3, RB4, RTMP0, RTMP1);
ROUND_FIRST_INVERSE (31, 7, RA0, RA1, RA2, RA3, RA4,
RA3, RA0, RA1, RA4, RA2,
RB0, RB1, RB2, RB3, RB4,
RB3, RB0, RB1, RB4, RB2);
ROUND_INVERSE (30, 6, RA3, RA0, RA1, RA4, RA2, RA0, RA1, RA2, RA4, RA3,
RB3, RB0, RB1, RB4, RB2, RB0, RB1, RB2, RB4, RB3);
ROUND_INVERSE (29, 5, RA0, RA1, RA2, RA4, RA3, RA1, RA3, RA4, RA2, RA0,
RB0, RB1, RB2, RB4, RB3, RB1, RB3, RB4, RB2, RB0);
ROUND_INVERSE (28, 4, RA1, RA3, RA4, RA2, RA0, RA1, RA2, RA4, RA0, RA3,
RB1, RB3, RB4, RB2, RB0, RB1, RB2, RB4, RB0, RB3);
ROUND_INVERSE (27, 3, RA1, RA2, RA4, RA0, RA3, RA4, RA2, RA0, RA1, RA3,
RB1, RB2, RB4, RB0, RB3, RB4, RB2, RB0, RB1, RB3);
ROUND_INVERSE (26, 2, RA4, RA2, RA0, RA1, RA3, RA2, RA3, RA0, RA1, RA4,
RB4, RB2, RB0, RB1, RB3, RB2, RB3, RB0, RB1, RB4);
ROUND_INVERSE (25, 1, RA2, RA3, RA0, RA1, RA4, RA4, RA2, RA1, RA0, RA3,
RB2, RB3, RB0, RB1, RB4, RB4, RB2, RB1, RB0, RB3);
ROUND_INVERSE (24, 0, RA4, RA2, RA1, RA0, RA3, RA4, RA3, RA2, RA0, RA1,
RB4, RB2, RB1, RB0, RB3, RB4, RB3, RB2, RB0, RB1);
ROUND_INVERSE (23, 7, RA4, RA3, RA2, RA0, RA1, RA0, RA4, RA3, RA1, RA2,
RB4, RB3, RB2, RB0, RB1, RB0, RB4, RB3, RB1, RB2);
ROUND_INVERSE (22, 6, RA0, RA4, RA3, RA1, RA2, RA4, RA3, RA2, RA1, RA0,
RB0, RB4, RB3, RB1, RB2, RB4, RB3, RB2, RB1, RB0);
ROUND_INVERSE (21, 5, RA4, RA3, RA2, RA1, RA0, RA3, RA0, RA1, RA2, RA4,
RB4, RB3, RB2, RB1, RB0, RB3, RB0, RB1, RB2, RB4);
ROUND_INVERSE (20, 4, RA3, RA0, RA1, RA2, RA4, RA3, RA2, RA1, RA4, RA0,
RB3, RB0, RB1, RB2, RB4, RB3, RB2, RB1, RB4, RB0);
ROUND_INVERSE (19, 3, RA3, RA2, RA1, RA4, RA0, RA1, RA2, RA4, RA3, RA0,
RB3, RB2, RB1, RB4, RB0, RB1, RB2, RB4, RB3, RB0);
ROUND_INVERSE (18, 2, RA1, RA2, RA4, RA3, RA0, RA2, RA0, RA4, RA3, RA1,
RB1, RB2, RB4, RB3, RB0, RB2, RB0, RB4, RB3, RB1);
ROUND_INVERSE (17, 1, RA2, RA0, RA4, RA3, RA1, RA1, RA2, RA3, RA4, RA0,
RB2, RB0, RB4, RB3, RB1, RB1, RB2, RB3, RB4, RB0);
ROUND_INVERSE (16, 0, RA1, RA2, RA3, RA4, RA0, RA1, RA0, RA2, RA4, RA3,
RB1, RB2, RB3, RB4, RB0, RB1, RB0, RB2, RB4, RB3);
ROUND_INVERSE (15, 7, RA1, RA0, RA2, RA4, RA3, RA4, RA1, RA0, RA3, RA2,
RB1, RB0, RB2, RB4, RB3, RB4, RB1, RB0, RB3, RB2);
ROUND_INVERSE (14, 6, RA4, RA1, RA0, RA3, RA2, RA1, RA0, RA2, RA3, RA4,
RB4, RB1, RB0, RB3, RB2, RB1, RB0, RB2, RB3, RB4);
ROUND_INVERSE (13, 5, RA1, RA0, RA2, RA3, RA4, RA0, RA4, RA3, RA2, RA1,
RB1, RB0, RB2, RB3, RB4, RB0, RB4, RB3, RB2, RB1);
ROUND_INVERSE (12, 4, RA0, RA4, RA3, RA2, RA1, RA0, RA2, RA3, RA1, RA4,
RB0, RB4, RB3, RB2, RB1, RB0, RB2, RB3, RB1, RB4);
ROUND_INVERSE (11, 3, RA0, RA2, RA3, RA1, RA4, RA3, RA2, RA1, RA0, RA4,
RB0, RB2, RB3, RB1, RB4, RB3, RB2, RB1, RB0, RB4);
ROUND_INVERSE (10, 2, RA3, RA2, RA1, RA0, RA4, RA2, RA4, RA1, RA0, RA3,
RB3, RB2, RB1, RB0, RB4, RB2, RB4, RB1, RB0, RB3);
ROUND_INVERSE (9, 1, RA2, RA4, RA1, RA0, RA3, RA3, RA2, RA0, RA1, RA4,
RB2, RB4, RB1, RB0, RB3, RB3, RB2, RB0, RB1, RB4);
ROUND_INVERSE (8, 0, RA3, RA2, RA0, RA1, RA4, RA3, RA4, RA2, RA1, RA0,
RB3, RB2, RB0, RB1, RB4, RB3, RB4, RB2, RB1, RB0);
ROUND_INVERSE (7, 7, RA3, RA4, RA2, RA1, RA0, RA1, RA3, RA4, RA0, RA2,
RB3, RB4, RB2, RB1, RB0, RB1, RB3, RB4, RB0, RB2);
ROUND_INVERSE (6, 6, RA1, RA3, RA4, RA0, RA2, RA3, RA4, RA2, RA0, RA1,
RB1, RB3, RB4, RB0, RB2, RB3, RB4, RB2, RB0, RB1);
ROUND_INVERSE (5, 5, RA3, RA4, RA2, RA0, RA1, RA4, RA1, RA0, RA2, RA3,
RB3, RB4, RB2, RB0, RB1, RB4, RB1, RB0, RB2, RB3);
ROUND_INVERSE (4, 4, RA4, RA1, RA0, RA2, RA3, RA4, RA2, RA0, RA3, RA1,
RB4, RB1, RB0, RB2, RB3, RB4, RB2, RB0, RB3, RB1);
ROUND_INVERSE (3, 3, RA4, RA2, RA0, RA3, RA1, RA0, RA2, RA3, RA4, RA1,
RB4, RB2, RB0, RB3, RB1, RB0, RB2, RB3, RB4, RB1);
ROUND_INVERSE (2, 2, RA0, RA2, RA3, RA4, RA1, RA2, RA1, RA3, RA4, RA0,
RB0, RB2, RB3, RB4, RB1, RB2, RB1, RB3, RB4, RB0);
ROUND_INVERSE (1, 1, RA2, RA1, RA3, RA4, RA0, RA0, RA2, RA4, RA3, RA1,
RB2, RB1, RB3, RB4, RB0, RB0, RB2, RB4, RB3, RB1);
ROUND_INVERSE (0, 0, RA0, RA2, RA4, RA3, RA1, RA0, RA1, RA2, RA3, RA4,
RB0, RB2, RB4, RB3, RB1, RB0, RB1, RB2, RB3, RB4);
transpose_4x4(RA0, RA1, RA2, RA3, RA4, RTMP0, RTMP1);
transpose_4x4(RB0, RB1, RB2, RB3, RB4, RTMP0, RTMP1);
ret;
ELF(.size __serpent_dec_blk16,.-__serpent_dec_blk16;)
#define inc_le128(x, minus_one, tmp) \
vpcmpeqq minus_one, x, tmp; \
vpsubq minus_one, x, x; \
vpslldq $8, tmp, tmp; \
vpsubq tmp, x, x;
.align 8
.globl _gcry_serpent_avx2_ctr_enc
ELF(.type _gcry_serpent_avx2_ctr_enc,@function;)
_gcry_serpent_avx2_ctr_enc:
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
* %rdx: src (16 blocks)
* %rcx: iv (big endian, 128bit)
*/
movq 8(%rcx), %rax;
bswapq %rax;
vzeroupper;
vbroadcasti128 .Lbswap128_mask RIP, RTMP3;
vpcmpeqd RNOT, RNOT, RNOT;
vpsrldq $8, RNOT, RNOT; /* ab: -1:0 ; cd: -1:0 */
vpaddq RNOT, RNOT, RTMP2; /* ab: -2:0 ; cd: -2:0 */
/* load IV and byteswap */
vmovdqu (%rcx), RTMP4x;
vpshufb RTMP3x, RTMP4x, RTMP4x;
vmovdqa RTMP4x, RTMP0x;
inc_le128(RTMP4x, RNOTx, RTMP1x);
vinserti128 $1, RTMP4x, RTMP0, RTMP0;
vpshufb RTMP3, RTMP0, RA0; /* +1 ; +0 */
/* check need for handling 64-bit overflow and carry */
cmpq $(0xffffffffffffffff - 16), %rax;
ja .Lhandle_ctr_carry;
/* construct IVs */
vpsubq RTMP2, RTMP0, RTMP0; /* +3 ; +2 */
vpshufb RTMP3, RTMP0, RA1;
vpsubq RTMP2, RTMP0, RTMP0; /* +5 ; +4 */
vpshufb RTMP3, RTMP0, RA2;
vpsubq RTMP2, RTMP0, RTMP0; /* +7 ; +6 */
vpshufb RTMP3, RTMP0, RA3;
vpsubq RTMP2, RTMP0, RTMP0; /* +9 ; +8 */
vpshufb RTMP3, RTMP0, RB0;
vpsubq RTMP2, RTMP0, RTMP0; /* +11 ; +10 */
vpshufb RTMP3, RTMP0, RB1;
vpsubq RTMP2, RTMP0, RTMP0; /* +13 ; +12 */
vpshufb RTMP3, RTMP0, RB2;
vpsubq RTMP2, RTMP0, RTMP0; /* +15 ; +14 */
vpshufb RTMP3, RTMP0, RB3;
vpsubq RTMP2, RTMP0, RTMP0; /* +16 */
vpshufb RTMP3x, RTMP0x, RTMP0x;
jmp .Lctr_carry_done;
.Lhandle_ctr_carry:
/* construct IVs */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RA1; /* +3 ; +2 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RA2; /* +5 ; +4 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RA3; /* +7 ; +6 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RB0; /* +9 ; +8 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RB1; /* +11 ; +10 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RB2; /* +13 ; +12 */
inc_le128(RTMP0, RNOT, RTMP1);
inc_le128(RTMP0, RNOT, RTMP1);
vpshufb RTMP3, RTMP0, RB3; /* +15 ; +14 */
inc_le128(RTMP0, RNOT, RTMP1);
vextracti128 $1, RTMP0, RTMP0x;
vpshufb RTMP3x, RTMP0x, RTMP0x; /* +16 */
.align 4
.Lctr_carry_done:
/* store new IV */
vmovdqu RTMP0x, (%rcx);
call __serpent_enc_blk16;
vpxor (0 * 32)(%rdx), RA4, RA4;
vpxor (1 * 32)(%rdx), RA1, RA1;
vpxor (2 * 32)(%rdx), RA2, RA2;
vpxor (3 * 32)(%rdx), RA0, RA0;
vpxor (4 * 32)(%rdx), RB4, RB4;
vpxor (5 * 32)(%rdx), RB1, RB1;
vpxor (6 * 32)(%rdx), RB2, RB2;
vpxor (7 * 32)(%rdx), RB0, RB0;
vmovdqu RA4, (0 * 32)(%rsi);
vmovdqu RA1, (1 * 32)(%rsi);
vmovdqu RA2, (2 * 32)(%rsi);
vmovdqu RA0, (3 * 32)(%rsi);
vmovdqu RB4, (4 * 32)(%rsi);
vmovdqu RB1, (5 * 32)(%rsi);
vmovdqu RB2, (6 * 32)(%rsi);
vmovdqu RB0, (7 * 32)(%rsi);
vzeroall;
ret
ELF(.size _gcry_serpent_avx2_ctr_enc,.-_gcry_serpent_avx2_ctr_enc;)
.align 8
.globl _gcry_serpent_avx2_cbc_dec
ELF(.type _gcry_serpent_avx2_cbc_dec,@function;)
_gcry_serpent_avx2_cbc_dec:
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
* %rdx: src (16 blocks)
* %rcx: iv
*/
vzeroupper;
vmovdqu (0 * 32)(%rdx), RA0;
vmovdqu (1 * 32)(%rdx), RA1;
vmovdqu (2 * 32)(%rdx), RA2;
vmovdqu (3 * 32)(%rdx), RA3;
vmovdqu (4 * 32)(%rdx), RB0;
vmovdqu (5 * 32)(%rdx), RB1;
vmovdqu (6 * 32)(%rdx), RB2;
vmovdqu (7 * 32)(%rdx), RB3;
call __serpent_dec_blk16;
vmovdqu (%rcx), RNOTx;
vinserti128 $1, (%rdx), RNOT, RNOT;
vpxor RNOT, RA0, RA0;
vpxor (0 * 32 + 16)(%rdx), RA1, RA1;
vpxor (1 * 32 + 16)(%rdx), RA2, RA2;
vpxor (2 * 32 + 16)(%rdx), RA3, RA3;
vpxor (3 * 32 + 16)(%rdx), RB0, RB0;
vpxor (4 * 32 + 16)(%rdx), RB1, RB1;
vpxor (5 * 32 + 16)(%rdx), RB2, RB2;
vpxor (6 * 32 + 16)(%rdx), RB3, RB3;
vmovdqu (7 * 32 + 16)(%rdx), RNOTx;
vmovdqu RNOTx, (%rcx); /* store new IV */
vmovdqu RA0, (0 * 32)(%rsi);
vmovdqu RA1, (1 * 32)(%rsi);
vmovdqu RA2, (2 * 32)(%rsi);
vmovdqu RA3, (3 * 32)(%rsi);
vmovdqu RB0, (4 * 32)(%rsi);
vmovdqu RB1, (5 * 32)(%rsi);
vmovdqu RB2, (6 * 32)(%rsi);
vmovdqu RB3, (7 * 32)(%rsi);
vzeroall;
ret
ELF(.size _gcry_serpent_avx2_cbc_dec,.-_gcry_serpent_avx2_cbc_dec;)
.align 8
.globl _gcry_serpent_avx2_cfb_dec
ELF(.type _gcry_serpent_avx2_cfb_dec,@function;)
_gcry_serpent_avx2_cfb_dec:
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
* %rdx: src (16 blocks)
* %rcx: iv
*/
vzeroupper;
/* Load input */
vmovdqu (%rcx), RNOTx;
vinserti128 $1, (%rdx), RNOT, RA0;
vmovdqu (0 * 32 + 16)(%rdx), RA1;
vmovdqu (1 * 32 + 16)(%rdx), RA2;
vmovdqu (2 * 32 + 16)(%rdx), RA3;
vmovdqu (3 * 32 + 16)(%rdx), RB0;
vmovdqu (4 * 32 + 16)(%rdx), RB1;
vmovdqu (5 * 32 + 16)(%rdx), RB2;
vmovdqu (6 * 32 + 16)(%rdx), RB3;
/* Update IV */
vmovdqu (7 * 32 + 16)(%rdx), RNOTx;
vmovdqu RNOTx, (%rcx);
call __serpent_enc_blk16;
vpxor (0 * 32)(%rdx), RA4, RA4;
vpxor (1 * 32)(%rdx), RA1, RA1;
vpxor (2 * 32)(%rdx), RA2, RA2;
vpxor (3 * 32)(%rdx), RA0, RA0;
vpxor (4 * 32)(%rdx), RB4, RB4;
vpxor (5 * 32)(%rdx), RB1, RB1;
vpxor (6 * 32)(%rdx), RB2, RB2;
vpxor (7 * 32)(%rdx), RB0, RB0;
vmovdqu RA4, (0 * 32)(%rsi);
vmovdqu RA1, (1 * 32)(%rsi);
vmovdqu RA2, (2 * 32)(%rsi);
vmovdqu RA0, (3 * 32)(%rsi);
vmovdqu RB4, (4 * 32)(%rsi);
vmovdqu RB1, (5 * 32)(%rsi);
vmovdqu RB2, (6 * 32)(%rsi);
vmovdqu RB0, (7 * 32)(%rsi);
vzeroall;
ret
ELF(.size _gcry_serpent_avx2_cfb_dec,.-_gcry_serpent_avx2_cfb_dec;)
.align 8
.globl _gcry_serpent_avx2_ocb_enc
ELF(.type _gcry_serpent_avx2_ocb_enc,@function;)
_gcry_serpent_avx2_ocb_enc:
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
* %rdx: src (16 blocks)
* %rcx: offset
* %r8 : checksum
* %r9 : L pointers (void *L[16])
*/
vzeroupper;
subq $(4 * 8), %rsp;
movq %r10, (0 * 8)(%rsp);
movq %r11, (1 * 8)(%rsp);
movq %r12, (2 * 8)(%rsp);
movq %r13, (3 * 8)(%rsp);
vmovdqu (%rcx), RTMP0x;
vmovdqu (%r8), RTMP1x;
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
/* Checksum_i = Checksum_{i-1} xor P_i */
/* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
#define OCB_INPUT(n, l0reg, l1reg, yreg) \
vmovdqu (n * 32)(%rdx), yreg; \
vpxor (l0reg), RTMP0x, RNOTx; \
vpxor (l1reg), RNOTx, RTMP0x; \
vinserti128 $1, RTMP0x, RNOT, RNOT; \
vpxor yreg, RTMP1, RTMP1; \
vpxor yreg, RNOT, yreg; \
vmovdqu RNOT, (n * 32)(%rsi);
movq (0 * 8)(%r9), %r10;
movq (1 * 8)(%r9), %r11;
movq (2 * 8)(%r9), %r12;
movq (3 * 8)(%r9), %r13;
OCB_INPUT(0, %r10, %r11, RA0);
OCB_INPUT(1, %r12, %r13, RA1);
movq (4 * 8)(%r9), %r10;
movq (5 * 8)(%r9), %r11;
movq (6 * 8)(%r9), %r12;
movq (7 * 8)(%r9), %r13;
OCB_INPUT(2, %r10, %r11, RA2);
OCB_INPUT(3, %r12, %r13, RA3);
movq (8 * 8)(%r9), %r10;
movq (9 * 8)(%r9), %r11;
movq (10 * 8)(%r9), %r12;
movq (11 * 8)(%r9), %r13;
OCB_INPUT(4, %r10, %r11, RB0);
OCB_INPUT(5, %r12, %r13, RB1);
movq (12 * 8)(%r9), %r10;
movq (13 * 8)(%r9), %r11;
movq (14 * 8)(%r9), %r12;
movq (15 * 8)(%r9), %r13;
OCB_INPUT(6, %r10, %r11, RB2);
OCB_INPUT(7, %r12, %r13, RB3);
#undef OCB_INPUT
vextracti128 $1, RTMP1, RNOTx;
vmovdqu RTMP0x, (%rcx);
vpxor RNOTx, RTMP1x, RTMP1x;
vmovdqu RTMP1x, (%r8);
movq (0 * 8)(%rsp), %r10;
movq (1 * 8)(%rsp), %r11;
movq (2 * 8)(%rsp), %r12;
movq (3 * 8)(%rsp), %r13;
call __serpent_enc_blk16;
addq $(4 * 8), %rsp;
vpxor (0 * 32)(%rsi), RA4, RA4;
vpxor (1 * 32)(%rsi), RA1, RA1;
vpxor (2 * 32)(%rsi), RA2, RA2;
vpxor (3 * 32)(%rsi), RA0, RA0;
vpxor (4 * 32)(%rsi), RB4, RB4;
vpxor (5 * 32)(%rsi), RB1, RB1;
vpxor (6 * 32)(%rsi), RB2, RB2;
vpxor (7 * 32)(%rsi), RB0, RB0;
vmovdqu RA4, (0 * 32)(%rsi);
vmovdqu RA1, (1 * 32)(%rsi);
vmovdqu RA2, (2 * 32)(%rsi);
vmovdqu RA0, (3 * 32)(%rsi);
vmovdqu RB4, (4 * 32)(%rsi);
vmovdqu RB1, (5 * 32)(%rsi);
vmovdqu RB2, (6 * 32)(%rsi);
vmovdqu RB0, (7 * 32)(%rsi);
vzeroall;
ret;
ELF(.size _gcry_serpent_avx2_ocb_enc,.-_gcry_serpent_avx2_ocb_enc;)
.align 8
.globl _gcry_serpent_avx2_ocb_dec
ELF(.type _gcry_serpent_avx2_ocb_dec,@function;)
_gcry_serpent_avx2_ocb_dec:
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
* %rdx: src (16 blocks)
* %rcx: offset
* %r8 : checksum
* %r9 : L pointers (void *L[16])
*/
vzeroupper;
subq $(4 * 8), %rsp;
movq %r10, (0 * 8)(%rsp);
movq %r11, (1 * 8)(%rsp);
movq %r12, (2 * 8)(%rsp);
movq %r13, (3 * 8)(%rsp);
vmovdqu (%rcx), RTMP0x;
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
/* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
#define OCB_INPUT(n, l0reg, l1reg, yreg) \
vmovdqu (n * 32)(%rdx), yreg; \
vpxor (l0reg), RTMP0x, RNOTx; \
vpxor (l1reg), RNOTx, RTMP0x; \
vinserti128 $1, RTMP0x, RNOT, RNOT; \
vpxor yreg, RNOT, yreg; \
vmovdqu RNOT, (n * 32)(%rsi);
movq (0 * 8)(%r9), %r10;
movq (1 * 8)(%r9), %r11;
movq (2 * 8)(%r9), %r12;
movq (3 * 8)(%r9), %r13;
OCB_INPUT(0, %r10, %r11, RA0);
OCB_INPUT(1, %r12, %r13, RA1);
movq (4 * 8)(%r9), %r10;
movq (5 * 8)(%r9), %r11;
movq (6 * 8)(%r9), %r12;
movq (7 * 8)(%r9), %r13;
OCB_INPUT(2, %r10, %r11, RA2);
OCB_INPUT(3, %r12, %r13, RA3);
movq (8 * 8)(%r9), %r10;
movq (9 * 8)(%r9), %r11;
movq (10 * 8)(%r9), %r12;
movq (11 * 8)(%r9), %r13;
OCB_INPUT(4, %r10, %r11, RB0);
OCB_INPUT(5, %r12, %r13, RB1);
movq (12 * 8)(%r9), %r10;
movq (13 * 8)(%r9), %r11;
movq (14 * 8)(%r9), %r12;
movq (15 * 8)(%r9), %r13;
OCB_INPUT(6, %r10, %r11, RB2);
OCB_INPUT(7, %r12, %r13, RB3);
#undef OCB_INPUT
vmovdqu RTMP0x, (%rcx);
movq (0 * 8)(%rsp), %r10;
movq (1 * 8)(%rsp), %r11;
movq (2 * 8)(%rsp), %r12;
movq (3 * 8)(%rsp), %r13;
call __serpent_dec_blk16;
addq $(4 * 8), %rsp;
vmovdqu (%r8), RTMP1x;
vpxor (0 * 32)(%rsi), RA0, RA0;
vpxor (1 * 32)(%rsi), RA1, RA1;
vpxor (2 * 32)(%rsi), RA2, RA2;
vpxor (3 * 32)(%rsi), RA3, RA3;
vpxor (4 * 32)(%rsi), RB0, RB0;
vpxor (5 * 32)(%rsi), RB1, RB1;
vpxor (6 * 32)(%rsi), RB2, RB2;
vpxor (7 * 32)(%rsi), RB3, RB3;
/* Checksum_i = Checksum_{i-1} xor P_i */
vmovdqu RA0, (0 * 32)(%rsi);
vpxor RA0, RTMP1, RTMP1;
vmovdqu RA1, (1 * 32)(%rsi);
vpxor RA1, RTMP1, RTMP1;
vmovdqu RA2, (2 * 32)(%rsi);
vpxor RA2, RTMP1, RTMP1;
vmovdqu RA3, (3 * 32)(%rsi);
vpxor RA3, RTMP1, RTMP1;
vmovdqu RB0, (4 * 32)(%rsi);
vpxor RB0, RTMP1, RTMP1;
vmovdqu RB1, (5 * 32)(%rsi);
vpxor RB1, RTMP1, RTMP1;
vmovdqu RB2, (6 * 32)(%rsi);
vpxor RB2, RTMP1, RTMP1;
vmovdqu RB3, (7 * 32)(%rsi);
vpxor RB3, RTMP1, RTMP1;
vextracti128 $1, RTMP1, RNOTx;
vpxor RNOTx, RTMP1x, RTMP1x;
vmovdqu RTMP1x, (%r8);
vzeroall;
ret;
ELF(.size _gcry_serpent_avx2_ocb_dec,.-_gcry_serpent_avx2_ocb_dec;)
.align 8
.globl _gcry_serpent_avx2_ocb_auth
ELF(.type _gcry_serpent_avx2_ocb_auth,@function;)
_gcry_serpent_avx2_ocb_auth:
/* input:
* %rdi: ctx, CTX
* %rsi: abuf (16 blocks)
* %rdx: offset
* %rcx: checksum
* %r8 : L pointers (void *L[16])
*/
vzeroupper;
subq $(4 * 8), %rsp;
movq %r10, (0 * 8)(%rsp);
movq %r11, (1 * 8)(%rsp);
movq %r12, (2 * 8)(%rsp);
movq %r13, (3 * 8)(%rsp);
vmovdqu (%rdx), RTMP0x;
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
/* Sum_i = Sum_{i-1} xor ENCIPHER(K, A_i xor Offset_i) */
#define OCB_INPUT(n, l0reg, l1reg, yreg) \
vmovdqu (n * 32)(%rsi), yreg; \
vpxor (l0reg), RTMP0x, RNOTx; \
vpxor (l1reg), RNOTx, RTMP0x; \
vinserti128 $1, RTMP0x, RNOT, RNOT; \
vpxor yreg, RNOT, yreg;
movq (0 * 8)(%r8), %r10;
movq (1 * 8)(%r8), %r11;
movq (2 * 8)(%r8), %r12;
movq (3 * 8)(%r8), %r13;
OCB_INPUT(0, %r10, %r11, RA0);
OCB_INPUT(1, %r12, %r13, RA1);
movq (4 * 8)(%r8), %r10;
movq (5 * 8)(%r8), %r11;
movq (6 * 8)(%r8), %r12;
movq (7 * 8)(%r8), %r13;
OCB_INPUT(2, %r10, %r11, RA2);
OCB_INPUT(3, %r12, %r13, RA3);
movq (8 * 8)(%r8), %r10;
movq (9 * 8)(%r8), %r11;
movq (10 * 8)(%r8), %r12;
movq (11 * 8)(%r8), %r13;
OCB_INPUT(4, %r10, %r11, RB0);
OCB_INPUT(5, %r12, %r13, RB1);
movq (12 * 8)(%r8), %r10;
movq (13 * 8)(%r8), %r11;
movq (14 * 8)(%r8), %r12;
movq (15 * 8)(%r8), %r13;
OCB_INPUT(6, %r10, %r11, RB2);
OCB_INPUT(7, %r12, %r13, RB3);
#undef OCB_INPUT
vmovdqu RTMP0x, (%rdx);
movq (0 * 8)(%rsp), %r10;
movq (1 * 8)(%rsp), %r11;
movq (2 * 8)(%rsp), %r12;
movq (3 * 8)(%rsp), %r13;
call __serpent_enc_blk16;
addq $(4 * 8), %rsp;
vpxor RA4, RB4, RA4;
vpxor RA1, RB1, RA1;
vpxor RA2, RB2, RA2;
vpxor RA0, RB0, RA0;
vpxor RA4, RA1, RA1;
vpxor RA2, RA0, RA0;
vpxor RA1, RA0, RTMP1;
vextracti128 $1, RTMP1, RNOTx;
vpxor (%rcx), RTMP1x, RTMP1x;
vpxor RNOTx, RTMP1x, RTMP1x;
vmovdqu RTMP1x, (%rcx);
vzeroall;
ret;
ELF(.size _gcry_serpent_avx2_ocb_auth,.-_gcry_serpent_avx2_ocb_auth;)
.align 16
/* For CTR-mode IV byteswap */
.Lbswap128_mask:
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
#endif /*defined(USE_SERPENT) && defined(ENABLE_AVX2_SUPPORT)*/
#endif /*__x86_64*/