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Diffstat (limited to 'libotr/libgcrypt-1.8.7/cipher/serpent-sse2-amd64.S')
| -rw-r--r-- | libotr/libgcrypt-1.8.7/cipher/serpent-sse2-amd64.S | 1175 |
1 files changed, 1175 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/cipher/serpent-sse2-amd64.S b/libotr/libgcrypt-1.8.7/cipher/serpent-sse2-amd64.S new file mode 100644 index 0000000..b149af2 --- /dev/null +++ b/libotr/libgcrypt-1.8.7/cipher/serpent-sse2-amd64.S @@ -0,0 +1,1175 @@ +/* serpent-sse2-amd64.S - SSE2 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) + +#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 %xmm0 +#define RA1 %xmm1 +#define RA2 %xmm2 +#define RA3 %xmm3 +#define RA4 %xmm4 + +#define RB0 %xmm5 +#define RB1 %xmm6 +#define RB2 %xmm7 +#define RB3 %xmm8 +#define RB4 %xmm9 + +#define RNOT %xmm10 +#define RTMP0 %xmm11 +#define RTMP1 %xmm12 +#define RTMP2 %xmm13 + +/********************************************************************** + helper macros + **********************************************************************/ + +/* vector 32-bit rotation to left */ +#define vec_rol(reg, nleft, tmp) \ + movdqa reg, tmp; \ + pslld $(nleft), tmp; \ + psrld $(32 - (nleft)), reg; \ + por tmp, 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) \ + movdqa x0, t2; \ + punpckhdq x1, t2; \ + punpckldq x1, x0; \ + \ + movdqa x2, t1; \ + punpckldq x3, t1; \ + punpckhdq x3, x2; \ + \ + movdqa x0, x1; \ + punpckhqdq t1, x1; \ + punpcklqdq t1, x0; \ + \ + movdqa t2, x3; \ + punpckhqdq x2, x3; \ + punpcklqdq x2, t2; \ + movdqa t2, x2; + +/* fill xmm register with 32-bit value from memory */ +#define pbroadcastd(mem32, xreg) \ + movd mem32, xreg; \ + pshufd $0, xreg, xreg; + +/* xor with unaligned memory operand */ +#define pxor_u(umem128, xreg, t) \ + movdqu umem128, t; \ + pxor t, xreg; + +/* 128-bit wide byte swap */ +#define pbswap(xreg, t0) \ + /* reorder 32-bit words, [a,b,c,d] => [d,c,b,a] */ \ + pshufd $0x1b, xreg, xreg; \ + /* reorder high&low 16-bit words, [d0,d1,c0,c1] => [d1,d0,c1,c0] */ \ + pshuflw $0xb1, xreg, xreg; \ + pshufhw $0xb1, xreg, xreg; \ + /* reorder bytes in 16-bit words */ \ + movdqa xreg, t0; \ + psrlw $8, t0; \ + psllw $8, xreg; \ + por t0, xreg; + +/********************************************************************** + 8-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) \ + pxor r0, r3; movdqa r1, r4; \ + pand r3, r1; pxor r2, r4; \ + pxor r0, r1; por r3, r0; \ + pxor r4, r0; pxor r3, r4; \ + pxor r2, r3; por r1, r2; \ + pxor r4, r2; pxor RNOT, r4; \ + por r1, r4; pxor r3, r1; \ + pxor r4, r1; por r0, r3; \ + pxor r3, r1; pxor r3, r4; + +#define SBOX0_INVERSE(r0, r1, r2, r3, r4) \ + pxor RNOT, r2; movdqa r1, r4; \ + por r0, r1; pxor RNOT, r4; \ + pxor r2, r1; por r4, r2; \ + pxor r3, r1; pxor r4, r0; \ + pxor r0, r2; pand r3, r0; \ + pxor r0, r4; por r1, r0; \ + pxor r2, r0; pxor r4, r3; \ + pxor r1, r2; pxor r0, r3; \ + pxor r1, r3; \ + pand r3, r2; \ + pxor r2, r4; + +#define SBOX1(r0, r1, r2, r3, r4) \ + pxor RNOT, r0; pxor RNOT, r2; \ + movdqa r0, r4; pand r1, r0; \ + pxor r0, r2; por r3, r0; \ + pxor r2, r3; pxor r0, r1; \ + pxor r4, r0; por r1, r4; \ + pxor r3, r1; por r0, r2; \ + pand r4, r2; pxor r1, r0; \ + pand r2, r1; \ + pxor r0, r1; pand r2, r0; \ + pxor r4, r0; + +#define SBOX1_INVERSE(r0, r1, r2, r3, r4) \ + movdqa r1, r4; pxor r3, r1; \ + pand r1, r3; pxor r2, r4; \ + pxor r0, r3; por r1, r0; \ + pxor r3, r2; pxor r4, r0; \ + por r2, r0; pxor r3, r1; \ + pxor r1, r0; por r3, r1; \ + pxor r0, r1; pxor RNOT, r4; \ + pxor r1, r4; por r0, r1; \ + pxor r0, r1; \ + por r4, r1; \ + pxor r1, r3; + +#define SBOX2(r0, r1, r2, r3, r4) \ + movdqa r0, r4; pand r2, r0; \ + pxor r3, r0; pxor r1, r2; \ + pxor r0, r2; por r4, r3; \ + pxor r1, r3; pxor r2, r4; \ + movdqa r3, r1; por r4, r3; \ + pxor r0, r3; pand r1, r0; \ + pxor r0, r4; pxor r3, r1; \ + pxor r4, r1; pxor RNOT, r4; + +#define SBOX2_INVERSE(r0, r1, r2, r3, r4) \ + pxor r3, r2; pxor r0, r3; \ + movdqa r3, r4; pand r2, r3; \ + pxor r1, r3; por r2, r1; \ + pxor r4, r1; pand r3, r4; \ + pxor r3, r2; pand r0, r4; \ + pxor r2, r4; pand r1, r2; \ + por r0, r2; pxor RNOT, r3; \ + pxor r3, r2; pxor r3, r0; \ + pand r1, r0; pxor r4, r3; \ + pxor r0, r3; + +#define SBOX3(r0, r1, r2, r3, r4) \ + movdqa r0, r4; por r3, r0; \ + pxor r1, r3; pand r4, r1; \ + pxor r2, r4; pxor r3, r2; \ + pand r0, r3; por r1, r4; \ + pxor r4, r3; pxor r1, r0; \ + pand r0, r4; pxor r3, r1; \ + pxor r2, r4; por r0, r1; \ + pxor r2, r1; pxor r3, r0; \ + movdqa r1, r2; por r3, r1; \ + pxor r0, r1; + +#define SBOX3_INVERSE(r0, r1, r2, r3, r4) \ + movdqa r2, r4; pxor r1, r2; \ + pxor r2, r0; pand r2, r4; \ + pxor r0, r4; pand r1, r0; \ + pxor r3, r1; por r4, r3; \ + pxor r3, r2; pxor r3, r0; \ + pxor r4, r1; pand r2, r3; \ + pxor r1, r3; pxor r0, r1; \ + por r2, r1; pxor r3, r0; \ + pxor r4, r1; \ + pxor r1, r0; + +#define SBOX4(r0, r1, r2, r3, r4) \ + pxor r3, r1; pxor RNOT, r3; \ + pxor r3, r2; pxor r0, r3; \ + movdqa r1, r4; pand r3, r1; \ + pxor r2, r1; pxor r3, r4; \ + pxor r4, r0; pand r4, r2; \ + pxor r0, r2; pand r1, r0; \ + pxor r0, r3; por r1, r4; \ + pxor r0, r4; por r3, r0; \ + pxor r2, r0; pand r3, r2; \ + pxor RNOT, r0; pxor r2, r4; + +#define SBOX4_INVERSE(r0, r1, r2, r3, r4) \ + movdqa r2, r4; pand r3, r2; \ + pxor r1, r2; por r3, r1; \ + pand r0, r1; pxor r2, r4; \ + pxor r1, r4; pand r2, r1; \ + pxor RNOT, r0; pxor r4, r3; \ + pxor r3, r1; pand r0, r3; \ + pxor r2, r3; pxor r1, r0; \ + pand r0, r2; pxor r0, r3; \ + pxor r4, r2; \ + por r3, r2; pxor r0, r3; \ + pxor r1, r2; + +#define SBOX5(r0, r1, r2, r3, r4) \ + pxor r1, r0; pxor r3, r1; \ + pxor RNOT, r3; movdqa r1, r4; \ + pand r0, r1; pxor r3, r2; \ + pxor r2, r1; por r4, r2; \ + pxor r3, r4; pand r1, r3; \ + pxor r0, r3; pxor r1, r4; \ + pxor r2, r4; pxor r0, r2; \ + pand r3, r0; pxor RNOT, r2; \ + pxor r4, r0; por r3, r4; \ + pxor r4, r2; + +#define SBOX5_INVERSE(r0, r1, r2, r3, r4) \ + pxor RNOT, r1; movdqa r3, r4; \ + pxor r1, r2; por r0, r3; \ + pxor r2, r3; por r1, r2; \ + pand r0, r2; pxor r3, r4; \ + pxor r4, r2; por r0, r4; \ + pxor r1, r4; pand r2, r1; \ + pxor r3, r1; pxor r2, r4; \ + pand r4, r3; pxor r1, r4; \ + pxor r4, r3; pxor RNOT, r4; \ + pxor r0, r3; + +#define SBOX6(r0, r1, r2, r3, r4) \ + pxor RNOT, r2; movdqa r3, r4; \ + pand r0, r3; pxor r4, r0; \ + pxor r2, r3; por r4, r2; \ + pxor r3, r1; pxor r0, r2; \ + por r1, r0; pxor r1, r2; \ + pxor r0, r4; por r3, r0; \ + pxor r2, r0; pxor r3, r4; \ + pxor r0, r4; pxor RNOT, r3; \ + pand r4, r2; \ + pxor r3, r2; + +#define SBOX6_INVERSE(r0, r1, r2, r3, r4) \ + pxor r2, r0; movdqa r2, r4; \ + pand r0, r2; pxor r3, r4; \ + pxor RNOT, r2; pxor r1, r3; \ + pxor r3, r2; por r0, r4; \ + pxor r2, r0; pxor r4, r3; \ + pxor r1, r4; pand r3, r1; \ + pxor r0, r1; pxor r3, r0; \ + por r2, r0; pxor r1, r3; \ + pxor r0, r4; + +#define SBOX7(r0, r1, r2, r3, r4) \ + movdqa r1, r4; por r2, r1; \ + pxor r3, r1; pxor r2, r4; \ + pxor r1, r2; por r4, r3; \ + pand r0, r3; pxor r2, r4; \ + pxor r1, r3; por r4, r1; \ + pxor r0, r1; por r4, r0; \ + pxor r2, r0; pxor r4, r1; \ + pxor r1, r2; pand r0, r1; \ + pxor r4, r1; pxor RNOT, r2; \ + por r0, r2; \ + pxor r2, r4; + +#define SBOX7_INVERSE(r0, r1, r2, r3, r4) \ + movdqa r2, r4; pxor r0, r2; \ + pand r3, r0; por r3, r4; \ + pxor RNOT, r2; pxor r1, r3; \ + por r0, r1; pxor r2, r0; \ + pand r4, r2; pand r4, r3; \ + pxor r2, r1; pxor r0, r2; \ + por r2, r0; pxor r1, r4; \ + pxor r3, r0; pxor r4, r3; \ + por r0, r4; pxor r2, r3; \ + pxor r2, 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) \ + pbroadcastd ((ctx_keys + (round) * 16 + 0 * 4)(CTX), r4); \ + pxor r4, r0; \ + pbroadcastd ((ctx_keys + (round) * 16 + 1 * 4)(CTX), r4); \ + pxor r4, r1; \ + pbroadcastd ((ctx_keys + (round) * 16 + 2 * 4)(CTX), r4); \ + pxor r4, r2; \ + pbroadcastd ((ctx_keys + (round) * 16 + 3 * 4)(CTX), r4); \ + pxor r4, 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); \ + pxor r0, r1; \ + pxor r2, r1; \ + movdqa r0, r4; \ + pslld $3, r4; \ + pxor r2, r3; \ + pxor r4, r3; \ + vec_rol(r1, 1, r4); \ + vec_rol(r3, 7, r4); \ + pxor r1, r0; \ + pxor r3, r0; \ + movdqa r1, r4; \ + pslld $7, r4; \ + pxor r3, r2; \ + pxor r4, 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); \ + movdqa r1, r4; \ + pslld $7, r4; \ + pxor r3, r2; \ + pxor r4, r2; \ + pxor r1, r0; \ + pxor r3, r0; \ + vec_ror(r3, 7, r4); \ + vec_ror(r1, 1, r4); \ + movdqa r0, r4; \ + pslld $3, r4; \ + pxor r2, r3; \ + pxor r4, r3; \ + pxor r0, r1; \ + pxor r2, r1; \ + vec_ror(r2, 3, r4); \ + vec_ror(r0, 13, r4); + +/* Apply a Serpent round to eight 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 eight 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 eight 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 eight 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_blk8,@function;) +__serpent_enc_blk8: + /* input: + * %rdi: ctx, CTX + * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel plaintext + * blocks + * output: + * RA4, RA1, RA2, RA0, RB4, RB1, RB2, RB0: eight parallel + * ciphertext blocks + */ + + pcmpeqd 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_blk8,.-__serpent_enc_blk8;) + +.align 8 +ELF(.type __serpent_dec_blk8,@function;) +__serpent_dec_blk8: + /* input: + * %rdi: ctx, CTX + * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel + * ciphertext blocks + * output: + * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel plaintext + * blocks + */ + + pcmpeqd 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_blk8,.-__serpent_dec_blk8;) + +.align 8 +.globl _gcry_serpent_sse2_ctr_enc +ELF(.type _gcry_serpent_sse2_ctr_enc,@function;) +_gcry_serpent_sse2_ctr_enc: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (8 blocks) + * %rdx: src (8 blocks) + * %rcx: iv (big endian, 128bit) + */ + + /* load IV and byteswap */ + movdqu (%rcx), RA0; + movdqa RA0, RTMP0; + pbswap(RTMP0, RTMP1); /* be => le */ + + pcmpeqd RNOT, RNOT; + psrldq $8, RNOT; /* low: -1, high: 0 */ + movdqa RNOT, RTMP2; + paddq RTMP2, RTMP2; /* low: -2, high: 0 */ + + /* construct IVs */ + movdqa RTMP0, RTMP1; + psubq RNOT, RTMP0; /* +1 */ + movdqa RTMP0, RA1; + psubq RTMP2, RTMP1; /* +2 */ + movdqa RTMP1, RA2; + psubq RTMP2, RTMP0; /* +3 */ + movdqa RTMP0, RA3; + psubq RTMP2, RTMP1; /* +4 */ + movdqa RTMP1, RB0; + psubq RTMP2, RTMP0; /* +5 */ + movdqa RTMP0, RB1; + psubq RTMP2, RTMP1; /* +6 */ + movdqa RTMP1, RB2; + psubq RTMP2, RTMP0; /* +7 */ + movdqa RTMP0, RB3; + psubq RTMP2, RTMP1; /* +8 */ + + /* check need for handling 64-bit overflow and carry */ + cmpl $0xffffffff, 8(%rcx); + jne .Lno_ctr_carry; + + movl 12(%rcx), %eax; + bswapl %eax; + cmpl $-8, %eax; + jb .Lno_ctr_carry; + pslldq $8, RNOT; /* low: 0, high: -1 */ + je .Lcarry_RTMP0; + + cmpl $-6, %eax; + jb .Lcarry_RB3; + je .Lcarry_RB2; + + cmpl $-4, %eax; + jb .Lcarry_RB1; + je .Lcarry_RB0; + + cmpl $-2, %eax; + jb .Lcarry_RA3; + je .Lcarry_RA2; + + psubq RNOT, RA1; +.Lcarry_RA2: + psubq RNOT, RA2; +.Lcarry_RA3: + psubq RNOT, RA3; +.Lcarry_RB0: + psubq RNOT, RB0; +.Lcarry_RB1: + psubq RNOT, RB1; +.Lcarry_RB2: + psubq RNOT, RB2; +.Lcarry_RB3: + psubq RNOT, RB3; +.Lcarry_RTMP0: + psubq RNOT, RTMP1; + +.Lno_ctr_carry: + /* le => be */ + pbswap(RA1, RTMP0); + pbswap(RA2, RTMP0); + pbswap(RA3, RTMP0); + pbswap(RB0, RTMP0); + pbswap(RB1, RTMP0); + pbswap(RB2, RTMP0); + pbswap(RB3, RTMP0); + pbswap(RTMP1, RTMP0); + /* store new IV */ + movdqu RTMP1, (%rcx); + + call __serpent_enc_blk8; + + pxor_u((0 * 16)(%rdx), RA4, RTMP0); + pxor_u((1 * 16)(%rdx), RA1, RTMP0); + pxor_u((2 * 16)(%rdx), RA2, RTMP0); + pxor_u((3 * 16)(%rdx), RA0, RTMP0); + pxor_u((4 * 16)(%rdx), RB4, RTMP0); + pxor_u((5 * 16)(%rdx), RB1, RTMP0); + pxor_u((6 * 16)(%rdx), RB2, RTMP0); + pxor_u((7 * 16)(%rdx), RB0, RTMP0); + + movdqu RA4, (0 * 16)(%rsi); + movdqu RA1, (1 * 16)(%rsi); + movdqu RA2, (2 * 16)(%rsi); + movdqu RA0, (3 * 16)(%rsi); + movdqu RB4, (4 * 16)(%rsi); + movdqu RB1, (5 * 16)(%rsi); + movdqu RB2, (6 * 16)(%rsi); + movdqu RB0, (7 * 16)(%rsi); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret +ELF(.size _gcry_serpent_sse2_ctr_enc,.-_gcry_serpent_sse2_ctr_enc;) + +.align 8 +.globl _gcry_serpent_sse2_cbc_dec +ELF(.type _gcry_serpent_sse2_cbc_dec,@function;) +_gcry_serpent_sse2_cbc_dec: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (8 blocks) + * %rdx: src (8 blocks) + * %rcx: iv + */ + + movdqu (0 * 16)(%rdx), RA0; + movdqu (1 * 16)(%rdx), RA1; + movdqu (2 * 16)(%rdx), RA2; + movdqu (3 * 16)(%rdx), RA3; + movdqu (4 * 16)(%rdx), RB0; + movdqu (5 * 16)(%rdx), RB1; + movdqu (6 * 16)(%rdx), RB2; + movdqu (7 * 16)(%rdx), RB3; + + call __serpent_dec_blk8; + + movdqu (7 * 16)(%rdx), RNOT; + pxor_u((%rcx), RA0, RTMP0); + pxor_u((0 * 16)(%rdx), RA1, RTMP0); + pxor_u((1 * 16)(%rdx), RA2, RTMP0); + pxor_u((2 * 16)(%rdx), RA3, RTMP0); + pxor_u((3 * 16)(%rdx), RB0, RTMP0); + pxor_u((4 * 16)(%rdx), RB1, RTMP0); + pxor_u((5 * 16)(%rdx), RB2, RTMP0); + pxor_u((6 * 16)(%rdx), RB3, RTMP0); + movdqu RNOT, (%rcx); /* store new IV */ + + movdqu RA0, (0 * 16)(%rsi); + movdqu RA1, (1 * 16)(%rsi); + movdqu RA2, (2 * 16)(%rsi); + movdqu RA3, (3 * 16)(%rsi); + movdqu RB0, (4 * 16)(%rsi); + movdqu RB1, (5 * 16)(%rsi); + movdqu RB2, (6 * 16)(%rsi); + movdqu RB3, (7 * 16)(%rsi); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret +ELF(.size _gcry_serpent_sse2_cbc_dec,.-_gcry_serpent_sse2_cbc_dec;) + +.align 8 +.globl _gcry_serpent_sse2_cfb_dec +ELF(.type _gcry_serpent_sse2_cfb_dec,@function;) +_gcry_serpent_sse2_cfb_dec: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (8 blocks) + * %rdx: src (8 blocks) + * %rcx: iv + */ + + /* Load input */ + movdqu (%rcx), RA0; + movdqu 0 * 16(%rdx), RA1; + movdqu 1 * 16(%rdx), RA2; + movdqu 2 * 16(%rdx), RA3; + movdqu 3 * 16(%rdx), RB0; + movdqu 4 * 16(%rdx), RB1; + movdqu 5 * 16(%rdx), RB2; + movdqu 6 * 16(%rdx), RB3; + + /* Update IV */ + movdqu 7 * 16(%rdx), RNOT; + movdqu RNOT, (%rcx); + + call __serpent_enc_blk8; + + pxor_u((0 * 16)(%rdx), RA4, RTMP0); + pxor_u((1 * 16)(%rdx), RA1, RTMP0); + pxor_u((2 * 16)(%rdx), RA2, RTMP0); + pxor_u((3 * 16)(%rdx), RA0, RTMP0); + pxor_u((4 * 16)(%rdx), RB4, RTMP0); + pxor_u((5 * 16)(%rdx), RB1, RTMP0); + pxor_u((6 * 16)(%rdx), RB2, RTMP0); + pxor_u((7 * 16)(%rdx), RB0, RTMP0); + + movdqu RA4, (0 * 16)(%rsi); + movdqu RA1, (1 * 16)(%rsi); + movdqu RA2, (2 * 16)(%rsi); + movdqu RA0, (3 * 16)(%rsi); + movdqu RB4, (4 * 16)(%rsi); + movdqu RB1, (5 * 16)(%rsi); + movdqu RB2, (6 * 16)(%rsi); + movdqu RB0, (7 * 16)(%rsi); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret +ELF(.size _gcry_serpent_sse2_cfb_dec,.-_gcry_serpent_sse2_cfb_dec;) + +.align 8 +.globl _gcry_serpent_sse2_ocb_enc +ELF(.type _gcry_serpent_sse2_ocb_enc,@function;) + +_gcry_serpent_sse2_ocb_enc: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (8 blocks) + * %rdx: src (8 blocks) + * %rcx: offset + * %r8 : checksum + * %r9 : L pointers (void *L[8]) + */ + + subq $(4 * 8), %rsp; + + movq %r10, (0 * 8)(%rsp); + movq %r11, (1 * 8)(%rsp); + movq %r12, (2 * 8)(%rsp); + movq %r13, (3 * 8)(%rsp); + + movdqu (%rcx), RTMP0; + movdqu (%r8), RTMP1; + + /* 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, lreg, xreg) \ + movdqu (n * 16)(%rdx), xreg; \ + movdqu (lreg), RNOT; \ + pxor RNOT, RTMP0; \ + pxor xreg, RTMP1; \ + pxor RTMP0, xreg; \ + movdqu RTMP0, (n * 16)(%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, RA0); + OCB_INPUT(1, %r11, RA1); + OCB_INPUT(2, %r12, RA2); + OCB_INPUT(3, %r13, RA3); + movq (4 * 8)(%r9), %r10; + movq (5 * 8)(%r9), %r11; + movq (6 * 8)(%r9), %r12; + movq (7 * 8)(%r9), %r13; + OCB_INPUT(4, %r10, RB0); + OCB_INPUT(5, %r11, RB1); + OCB_INPUT(6, %r12, RB2); + OCB_INPUT(7, %r13, RB3); +#undef OCB_INPUT + + movdqu RTMP0, (%rcx); + movdqu RTMP1, (%r8); + + movq (0 * 8)(%rsp), %r10; + movq (1 * 8)(%rsp), %r11; + movq (2 * 8)(%rsp), %r12; + movq (3 * 8)(%rsp), %r13; + + call __serpent_enc_blk8; + + addq $(4 * 8), %rsp; + + pxor_u((0 * 16)(%rsi), RA4, RTMP0); + pxor_u((1 * 16)(%rsi), RA1, RTMP0); + pxor_u((2 * 16)(%rsi), RA2, RTMP0); + pxor_u((3 * 16)(%rsi), RA0, RTMP0); + pxor_u((4 * 16)(%rsi), RB4, RTMP0); + pxor_u((5 * 16)(%rsi), RB1, RTMP0); + pxor_u((6 * 16)(%rsi), RB2, RTMP0); + pxor_u((7 * 16)(%rsi), RB0, RTMP0); + + movdqu RA4, (0 * 16)(%rsi); + movdqu RA1, (1 * 16)(%rsi); + movdqu RA2, (2 * 16)(%rsi); + movdqu RA0, (3 * 16)(%rsi); + movdqu RB4, (4 * 16)(%rsi); + movdqu RB1, (5 * 16)(%rsi); + movdqu RB2, (6 * 16)(%rsi); + movdqu RB0, (7 * 16)(%rsi); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret; +ELF(.size _gcry_serpent_sse2_ocb_enc,.-_gcry_serpent_sse2_ocb_enc;) + +.align 8 +.globl _gcry_serpent_sse2_ocb_dec +ELF(.type _gcry_serpent_sse2_ocb_dec,@function;) + +_gcry_serpent_sse2_ocb_dec: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (8 blocks) + * %rdx: src (8 blocks) + * %rcx: offset + * %r8 : checksum + * %r9 : L pointers (void *L[8]) + */ + + subq $(4 * 8), %rsp; + + movq %r10, (0 * 8)(%rsp); + movq %r11, (1 * 8)(%rsp); + movq %r12, (2 * 8)(%rsp); + movq %r13, (3 * 8)(%rsp); + + movdqu (%rcx), RTMP0; + + /* Offset_i = Offset_{i-1} xor L_{ntz(i)} */ + /* P_i = Offset_i xor DECIPHER(K, C_i xor Offset_i) */ + +#define OCB_INPUT(n, lreg, xreg) \ + movdqu (n * 16)(%rdx), xreg; \ + movdqu (lreg), RNOT; \ + pxor RNOT, RTMP0; \ + pxor RTMP0, xreg; \ + movdqu RTMP0, (n * 16)(%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, RA0); + OCB_INPUT(1, %r11, RA1); + OCB_INPUT(2, %r12, RA2); + OCB_INPUT(3, %r13, RA3); + movq (4 * 8)(%r9), %r10; + movq (5 * 8)(%r9), %r11; + movq (6 * 8)(%r9), %r12; + movq (7 * 8)(%r9), %r13; + OCB_INPUT(4, %r10, RB0); + OCB_INPUT(5, %r11, RB1); + OCB_INPUT(6, %r12, RB2); + OCB_INPUT(7, %r13, RB3); +#undef OCB_INPUT + + movdqu RTMP0, (%rcx); + + movq (0 * 8)(%rsp), %r10; + movq (1 * 8)(%rsp), %r11; + movq (2 * 8)(%rsp), %r12; + movq (3 * 8)(%rsp), %r13; + + call __serpent_dec_blk8; + + addq $(4 * 8), %rsp; + + movdqu (%r8), RTMP0; + + pxor_u((0 * 16)(%rsi), RA0, RTMP1); + pxor_u((1 * 16)(%rsi), RA1, RTMP1); + pxor_u((2 * 16)(%rsi), RA2, RTMP1); + pxor_u((3 * 16)(%rsi), RA3, RTMP1); + pxor_u((4 * 16)(%rsi), RB0, RTMP1); + pxor_u((5 * 16)(%rsi), RB1, RTMP1); + pxor_u((6 * 16)(%rsi), RB2, RTMP1); + pxor_u((7 * 16)(%rsi), RB3, RTMP1); + + /* Checksum_i = Checksum_{i-1} xor P_i */ + + movdqu RA0, (0 * 16)(%rsi); + pxor RA0, RTMP0; + movdqu RA1, (1 * 16)(%rsi); + pxor RA1, RTMP0; + movdqu RA2, (2 * 16)(%rsi); + pxor RA2, RTMP0; + movdqu RA3, (3 * 16)(%rsi); + pxor RA3, RTMP0; + movdqu RB0, (4 * 16)(%rsi); + pxor RB0, RTMP0; + movdqu RB1, (5 * 16)(%rsi); + pxor RB1, RTMP0; + movdqu RB2, (6 * 16)(%rsi); + pxor RB2, RTMP0; + movdqu RB3, (7 * 16)(%rsi); + pxor RB3, RTMP0; + + movdqu RTMP0, (%r8); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret; +ELF(.size _gcry_serpent_sse2_ocb_dec,.-_gcry_serpent_sse2_ocb_dec;) + +.align 8 +.globl _gcry_serpent_sse2_ocb_auth +ELF(.type _gcry_serpent_sse2_ocb_auth,@function;) + +_gcry_serpent_sse2_ocb_auth: + /* input: + * %rdi: ctx, CTX + * %rsi: abuf (8 blocks) + * %rdx: offset + * %rcx: checksum + * %r8 : L pointers (void *L[8]) + */ + + subq $(4 * 8), %rsp; + + movq %r10, (0 * 8)(%rsp); + movq %r11, (1 * 8)(%rsp); + movq %r12, (2 * 8)(%rsp); + movq %r13, (3 * 8)(%rsp); + + movdqu (%rdx), RTMP0; + + /* 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, lreg, xreg) \ + movdqu (n * 16)(%rsi), xreg; \ + movdqu (lreg), RNOT; \ + pxor RNOT, RTMP0; \ + pxor RTMP0, xreg; + movq (0 * 8)(%r8), %r10; + movq (1 * 8)(%r8), %r11; + movq (2 * 8)(%r8), %r12; + movq (3 * 8)(%r8), %r13; + OCB_INPUT(0, %r10, RA0); + OCB_INPUT(1, %r11, RA1); + OCB_INPUT(2, %r12, RA2); + OCB_INPUT(3, %r13, RA3); + movq (4 * 8)(%r8), %r10; + movq (5 * 8)(%r8), %r11; + movq (6 * 8)(%r8), %r12; + movq (7 * 8)(%r8), %r13; + OCB_INPUT(4, %r10, RB0); + OCB_INPUT(5, %r11, RB1); + OCB_INPUT(6, %r12, RB2); + OCB_INPUT(7, %r13, RB3); +#undef OCB_INPUT + + movdqu RTMP0, (%rdx); + + movq (0 * 8)(%rsp), %r10; + movq (1 * 8)(%rsp), %r11; + movq (2 * 8)(%rsp), %r12; + movq (3 * 8)(%rsp), %r13; + + call __serpent_enc_blk8; + + addq $(4 * 8), %rsp; + + movdqu (%rcx), RTMP0; + pxor RB4, RA4; + pxor RB1, RA1; + pxor RB2, RA2; + pxor RB0, RA0; + + pxor RTMP0, RA2; + pxor RA4, RA1; + pxor RA2, RA0; + + pxor RA1, RA0; + movdqu RA0, (%rcx); + + /* clear the used registers */ + pxor RA0, RA0; + pxor RA1, RA1; + pxor RA2, RA2; + pxor RA3, RA3; + pxor RA4, RA4; + pxor RB0, RB0; + pxor RB1, RB1; + pxor RB2, RB2; + pxor RB3, RB3; + pxor RB4, RB4; + pxor RTMP0, RTMP0; + pxor RTMP1, RTMP1; + pxor RTMP2, RTMP2; + pxor RNOT, RNOT; + + ret; +ELF(.size _gcry_serpent_sse2_ocb_auth,.-_gcry_serpent_sse2_ocb_auth;) + +#endif /*defined(USE_SERPENT)*/ +#endif /*__x86_64*/ |