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- /*
- * Serpent Cipher 4-way parallel algorithm (i586/SSE2)
- *
- * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
- *
- * Based on crypto/serpent.c by
- * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
- * 2003 Herbert Valerio Riedel <hvr@gnu.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- *
- */
- #include <linux/linkage.h>
- .file "serpent-sse2-i586-asm_32.S"
- .text
- #define arg_ctx 4
- #define arg_dst 8
- #define arg_src 12
- #define arg_xor 16
- /**********************************************************************
- 4-way SSE2 serpent
- **********************************************************************/
- #define CTX %edx
- #define RA %xmm0
- #define RB %xmm1
- #define RC %xmm2
- #define RD %xmm3
- #define RE %xmm4
- #define RT0 %xmm5
- #define RT1 %xmm6
- #define RNOT %xmm7
- #define get_key(i, j, t) \
- movd (4*(i)+(j))*4(CTX), t; \
- pshufd $0, t, t;
- #define K(x0, x1, x2, x3, x4, i) \
- get_key(i, 0, x4); \
- get_key(i, 1, RT0); \
- get_key(i, 2, RT1); \
- pxor x4, x0; \
- pxor RT0, x1; \
- pxor RT1, x2; \
- get_key(i, 3, x4); \
- pxor x4, x3;
- #define LK(x0, x1, x2, x3, x4, i) \
- movdqa x0, x4; \
- pslld $13, x0; \
- psrld $(32 - 13), x4; \
- por x4, x0; \
- pxor x0, x1; \
- movdqa x2, x4; \
- pslld $3, x2; \
- psrld $(32 - 3), x4; \
- por x4, x2; \
- pxor x2, x1; \
- movdqa x1, x4; \
- pslld $1, x1; \
- psrld $(32 - 1), x4; \
- por x4, x1; \
- movdqa x0, x4; \
- pslld $3, x4; \
- pxor x2, x3; \
- pxor x4, x3; \
- movdqa x3, x4; \
- pslld $7, x3; \
- psrld $(32 - 7), x4; \
- por x4, x3; \
- movdqa x1, x4; \
- pslld $7, x4; \
- pxor x1, x0; \
- pxor x3, x0; \
- pxor x3, x2; \
- pxor x4, x2; \
- movdqa x0, x4; \
- get_key(i, 1, RT0); \
- pxor RT0, x1; \
- get_key(i, 3, RT0); \
- pxor RT0, x3; \
- pslld $5, x0; \
- psrld $(32 - 5), x4; \
- por x4, x0; \
- movdqa x2, x4; \
- pslld $22, x2; \
- psrld $(32 - 22), x4; \
- por x4, x2; \
- get_key(i, 0, RT0); \
- pxor RT0, x0; \
- get_key(i, 2, RT0); \
- pxor RT0, x2;
- #define KL(x0, x1, x2, x3, x4, i) \
- K(x0, x1, x2, x3, x4, i); \
- movdqa x0, x4; \
- psrld $5, x0; \
- pslld $(32 - 5), x4; \
- por x4, x0; \
- movdqa x2, x4; \
- psrld $22, x2; \
- pslld $(32 - 22), x4; \
- por x4, x2; \
- pxor x3, x2; \
- pxor x3, x0; \
- movdqa x1, x4; \
- pslld $7, x4; \
- pxor x1, x0; \
- pxor x4, x2; \
- movdqa x1, x4; \
- psrld $1, x1; \
- pslld $(32 - 1), x4; \
- por x4, x1; \
- movdqa x3, x4; \
- psrld $7, x3; \
- pslld $(32 - 7), x4; \
- por x4, x3; \
- pxor x0, x1; \
- movdqa x0, x4; \
- pslld $3, x4; \
- pxor x4, x3; \
- movdqa x0, x4; \
- psrld $13, x0; \
- pslld $(32 - 13), x4; \
- por x4, x0; \
- pxor x2, x1; \
- pxor x2, x3; \
- movdqa x2, x4; \
- psrld $3, x2; \
- pslld $(32 - 3), x4; \
- por x4, x2;
- #define S0(x0, x1, x2, x3, x4) \
- movdqa x3, x4; \
- por x0, x3; \
- pxor x4, x0; \
- pxor x2, x4; \
- pxor RNOT, x4; \
- pxor x1, x3; \
- pand x0, x1; \
- pxor x4, x1; \
- pxor x0, x2; \
- pxor x3, x0; \
- por x0, x4; \
- pxor x2, x0; \
- pand x1, x2; \
- pxor x2, x3; \
- pxor RNOT, x1; \
- pxor x4, x2; \
- pxor x2, x1;
- #define S1(x0, x1, x2, x3, x4) \
- movdqa x1, x4; \
- pxor x0, x1; \
- pxor x3, x0; \
- pxor RNOT, x3; \
- pand x1, x4; \
- por x1, x0; \
- pxor x2, x3; \
- pxor x3, x0; \
- pxor x3, x1; \
- pxor x4, x3; \
- por x4, x1; \
- pxor x2, x4; \
- pand x0, x2; \
- pxor x1, x2; \
- por x0, x1; \
- pxor RNOT, x0; \
- pxor x2, x0; \
- pxor x1, x4;
- #define S2(x0, x1, x2, x3, x4) \
- pxor RNOT, x3; \
- pxor x0, x1; \
- movdqa x0, x4; \
- pand x2, x0; \
- pxor x3, x0; \
- por x4, x3; \
- pxor x1, x2; \
- pxor x1, x3; \
- pand x0, x1; \
- pxor x2, x0; \
- pand x3, x2; \
- por x1, x3; \
- pxor RNOT, x0; \
- pxor x0, x3; \
- pxor x0, x4; \
- pxor x2, x0; \
- por x2, x1;
- #define S3(x0, x1, x2, x3, x4) \
- movdqa x1, x4; \
- pxor x3, x1; \
- por x0, x3; \
- pand x0, x4; \
- pxor x2, x0; \
- pxor x1, x2; \
- pand x3, x1; \
- pxor x3, x2; \
- por x4, x0; \
- pxor x3, x4; \
- pxor x0, x1; \
- pand x3, x0; \
- pand x4, x3; \
- pxor x2, x3; \
- por x1, x4; \
- pand x1, x2; \
- pxor x3, x4; \
- pxor x3, x0; \
- pxor x2, x3;
- #define S4(x0, x1, x2, x3, x4) \
- movdqa x3, x4; \
- pand x0, x3; \
- pxor x4, x0; \
- pxor x2, x3; \
- por x4, x2; \
- pxor x1, x0; \
- pxor x3, x4; \
- por x0, x2; \
- pxor x1, x2; \
- pand x0, x1; \
- pxor x4, x1; \
- pand x2, x4; \
- pxor x3, x2; \
- pxor x0, x4; \
- por x1, x3; \
- pxor RNOT, x1; \
- pxor x0, x3;
- #define S5(x0, x1, x2, x3, x4) \
- movdqa x1, x4; \
- por x0, x1; \
- pxor x1, x2; \
- pxor RNOT, x3; \
- pxor x0, x4; \
- pxor x2, x0; \
- pand x4, x1; \
- por x3, x4; \
- pxor x0, x4; \
- pand x3, x0; \
- pxor x3, x1; \
- pxor x2, x3; \
- pxor x1, x0; \
- pand x4, x2; \
- pxor x2, x1; \
- pand x0, x2; \
- pxor x2, x3;
- #define S6(x0, x1, x2, x3, x4) \
- movdqa x1, x4; \
- pxor x0, x3; \
- pxor x2, x1; \
- pxor x0, x2; \
- pand x3, x0; \
- por x3, x1; \
- pxor RNOT, x4; \
- pxor x1, x0; \
- pxor x2, x1; \
- pxor x4, x3; \
- pxor x0, x4; \
- pand x0, x2; \
- pxor x1, x4; \
- pxor x3, x2; \
- pand x1, x3; \
- pxor x0, x3; \
- pxor x2, x1;
- #define S7(x0, x1, x2, x3, x4) \
- pxor RNOT, x1; \
- movdqa x1, x4; \
- pxor RNOT, x0; \
- pand x2, x1; \
- pxor x3, x1; \
- por x4, x3; \
- pxor x2, x4; \
- pxor x3, x2; \
- pxor x0, x3; \
- por x1, x0; \
- pand x0, x2; \
- pxor x4, x0; \
- pxor x3, x4; \
- pand x0, x3; \
- pxor x1, x4; \
- pxor x4, x2; \
- pxor x1, x3; \
- por x0, x4; \
- pxor x1, x4;
- #define SI0(x0, x1, x2, x3, x4) \
- movdqa x3, x4; \
- pxor x0, x1; \
- por x1, x3; \
- pxor x1, x4; \
- pxor RNOT, x0; \
- pxor x3, x2; \
- pxor x0, x3; \
- pand x1, x0; \
- pxor x2, x0; \
- pand x3, x2; \
- pxor x4, x3; \
- pxor x3, x2; \
- pxor x3, x1; \
- pand x0, x3; \
- pxor x0, x1; \
- pxor x2, x0; \
- pxor x3, x4;
- #define SI1(x0, x1, x2, x3, x4) \
- pxor x3, x1; \
- movdqa x0, x4; \
- pxor x2, x0; \
- pxor RNOT, x2; \
- por x1, x4; \
- pxor x3, x4; \
- pand x1, x3; \
- pxor x2, x1; \
- pand x4, x2; \
- pxor x1, x4; \
- por x3, x1; \
- pxor x0, x3; \
- pxor x0, x2; \
- por x4, x0; \
- pxor x4, x2; \
- pxor x0, x1; \
- pxor x1, x4;
- #define SI2(x0, x1, x2, x3, x4) \
- pxor x1, x2; \
- movdqa x3, x4; \
- pxor RNOT, x3; \
- por x2, x3; \
- pxor x4, x2; \
- pxor x0, x4; \
- pxor x1, x3; \
- por x2, x1; \
- pxor x0, x2; \
- pxor x4, x1; \
- por x3, x4; \
- pxor x3, x2; \
- pxor x2, x4; \
- pand x1, x2; \
- pxor x3, x2; \
- pxor x4, x3; \
- pxor x0, x4;
- #define SI3(x0, x1, x2, x3, x4) \
- pxor x1, x2; \
- movdqa x1, x4; \
- pand x2, x1; \
- pxor x0, x1; \
- por x4, x0; \
- pxor x3, x4; \
- pxor x3, x0; \
- por x1, x3; \
- pxor x2, x1; \
- pxor x3, x1; \
- pxor x2, x0; \
- pxor x3, x2; \
- pand x1, x3; \
- pxor x0, x1; \
- pand x2, x0; \
- pxor x3, x4; \
- pxor x0, x3; \
- pxor x1, x0;
- #define SI4(x0, x1, x2, x3, x4) \
- pxor x3, x2; \
- movdqa x0, x4; \
- pand x1, x0; \
- pxor x2, x0; \
- por x3, x2; \
- pxor RNOT, x4; \
- pxor x0, x1; \
- pxor x2, x0; \
- pand x4, x2; \
- pxor x0, x2; \
- por x4, x0; \
- pxor x3, x0; \
- pand x2, x3; \
- pxor x3, x4; \
- pxor x1, x3; \
- pand x0, x1; \
- pxor x1, x4; \
- pxor x3, x0;
- #define SI5(x0, x1, x2, x3, x4) \
- movdqa x1, x4; \
- por x2, x1; \
- pxor x4, x2; \
- pxor x3, x1; \
- pand x4, x3; \
- pxor x3, x2; \
- por x0, x3; \
- pxor RNOT, x0; \
- pxor x2, x3; \
- por x0, x2; \
- pxor x1, x4; \
- pxor x4, x2; \
- pand x0, x4; \
- pxor x1, x0; \
- pxor x3, x1; \
- pand x2, x0; \
- pxor x3, x2; \
- pxor x2, x0; \
- pxor x4, x2; \
- pxor x3, x4;
- #define SI6(x0, x1, x2, x3, x4) \
- pxor x2, x0; \
- movdqa x0, x4; \
- pand x3, x0; \
- pxor x3, x2; \
- pxor x2, x0; \
- pxor x1, x3; \
- por x4, x2; \
- pxor x3, x2; \
- pand x0, x3; \
- pxor RNOT, x0; \
- pxor x1, x3; \
- pand x2, x1; \
- pxor x0, x4; \
- pxor x4, x3; \
- pxor x2, x4; \
- pxor x1, x0; \
- pxor x0, x2;
- #define SI7(x0, x1, x2, x3, x4) \
- movdqa x3, x4; \
- pand x0, x3; \
- pxor x2, x0; \
- por x4, x2; \
- pxor x1, x4; \
- pxor RNOT, x0; \
- por x3, x1; \
- pxor x0, x4; \
- pand x2, x0; \
- pxor x1, x0; \
- pand x2, x1; \
- pxor x2, x3; \
- pxor x3, x4; \
- pand x3, x2; \
- por x0, x3; \
- pxor x4, x1; \
- pxor x4, x3; \
- pand x0, x4; \
- pxor x2, x4;
- #define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
- movdqa x0, t2; \
- punpckldq x1, x0; \
- punpckhdq x1, t2; \
- movdqa x2, t1; \
- punpckhdq x3, x2; \
- punpckldq x3, t1; \
- movdqa x0, x1; \
- punpcklqdq t1, x0; \
- punpckhqdq t1, x1; \
- movdqa t2, x3; \
- punpcklqdq x2, t2; \
- punpckhqdq x2, x3; \
- movdqa t2, x2;
- #define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \
- movdqu (0*4*4)(in), x0; \
- movdqu (1*4*4)(in), x1; \
- movdqu (2*4*4)(in), x2; \
- movdqu (3*4*4)(in), x3; \
- \
- transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
- #define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
- transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
- \
- movdqu x0, (0*4*4)(out); \
- movdqu x1, (1*4*4)(out); \
- movdqu x2, (2*4*4)(out); \
- movdqu x3, (3*4*4)(out);
- #define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
- transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
- \
- movdqu (0*4*4)(out), t0; \
- pxor t0, x0; \
- movdqu x0, (0*4*4)(out); \
- movdqu (1*4*4)(out), t0; \
- pxor t0, x1; \
- movdqu x1, (1*4*4)(out); \
- movdqu (2*4*4)(out), t0; \
- pxor t0, x2; \
- movdqu x2, (2*4*4)(out); \
- movdqu (3*4*4)(out), t0; \
- pxor t0, x3; \
- movdqu x3, (3*4*4)(out);
- ENTRY(__serpent_enc_blk_4way)
- /* input:
- * arg_ctx(%esp): ctx, CTX
- * arg_dst(%esp): dst
- * arg_src(%esp): src
- * arg_xor(%esp): bool, if true: xor output
- */
- pcmpeqd RNOT, RNOT;
- movl arg_ctx(%esp), CTX;
- movl arg_src(%esp), %eax;
- read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
- K(RA, RB, RC, RD, RE, 0);
- S0(RA, RB, RC, RD, RE); LK(RC, RB, RD, RA, RE, 1);
- S1(RC, RB, RD, RA, RE); LK(RE, RD, RA, RC, RB, 2);
- S2(RE, RD, RA, RC, RB); LK(RB, RD, RE, RC, RA, 3);
- S3(RB, RD, RE, RC, RA); LK(RC, RA, RD, RB, RE, 4);
- S4(RC, RA, RD, RB, RE); LK(RA, RD, RB, RE, RC, 5);
- S5(RA, RD, RB, RE, RC); LK(RC, RA, RD, RE, RB, 6);
- S6(RC, RA, RD, RE, RB); LK(RD, RB, RA, RE, RC, 7);
- S7(RD, RB, RA, RE, RC); LK(RC, RA, RE, RD, RB, 8);
- S0(RC, RA, RE, RD, RB); LK(RE, RA, RD, RC, RB, 9);
- S1(RE, RA, RD, RC, RB); LK(RB, RD, RC, RE, RA, 10);
- S2(RB, RD, RC, RE, RA); LK(RA, RD, RB, RE, RC, 11);
- S3(RA, RD, RB, RE, RC); LK(RE, RC, RD, RA, RB, 12);
- S4(RE, RC, RD, RA, RB); LK(RC, RD, RA, RB, RE, 13);
- S5(RC, RD, RA, RB, RE); LK(RE, RC, RD, RB, RA, 14);
- S6(RE, RC, RD, RB, RA); LK(RD, RA, RC, RB, RE, 15);
- S7(RD, RA, RC, RB, RE); LK(RE, RC, RB, RD, RA, 16);
- S0(RE, RC, RB, RD, RA); LK(RB, RC, RD, RE, RA, 17);
- S1(RB, RC, RD, RE, RA); LK(RA, RD, RE, RB, RC, 18);
- S2(RA, RD, RE, RB, RC); LK(RC, RD, RA, RB, RE, 19);
- S3(RC, RD, RA, RB, RE); LK(RB, RE, RD, RC, RA, 20);
- S4(RB, RE, RD, RC, RA); LK(RE, RD, RC, RA, RB, 21);
- S5(RE, RD, RC, RA, RB); LK(RB, RE, RD, RA, RC, 22);
- S6(RB, RE, RD, RA, RC); LK(RD, RC, RE, RA, RB, 23);
- S7(RD, RC, RE, RA, RB); LK(RB, RE, RA, RD, RC, 24);
- S0(RB, RE, RA, RD, RC); LK(RA, RE, RD, RB, RC, 25);
- S1(RA, RE, RD, RB, RC); LK(RC, RD, RB, RA, RE, 26);
- S2(RC, RD, RB, RA, RE); LK(RE, RD, RC, RA, RB, 27);
- S3(RE, RD, RC, RA, RB); LK(RA, RB, RD, RE, RC, 28);
- S4(RA, RB, RD, RE, RC); LK(RB, RD, RE, RC, RA, 29);
- S5(RB, RD, RE, RC, RA); LK(RA, RB, RD, RC, RE, 30);
- S6(RA, RB, RD, RC, RE); LK(RD, RE, RB, RC, RA, 31);
- S7(RD, RE, RB, RC, RA); K(RA, RB, RC, RD, RE, 32);
- movl arg_dst(%esp), %eax;
- cmpb $0, arg_xor(%esp);
- jnz .L__enc_xor4;
- write_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
- ret;
- .L__enc_xor4:
- xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
- ret;
- ENDPROC(__serpent_enc_blk_4way)
- ENTRY(serpent_dec_blk_4way)
- /* input:
- * arg_ctx(%esp): ctx, CTX
- * arg_dst(%esp): dst
- * arg_src(%esp): src
- */
- pcmpeqd RNOT, RNOT;
- movl arg_ctx(%esp), CTX;
- movl arg_src(%esp), %eax;
- read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
- K(RA, RB, RC, RD, RE, 32);
- SI7(RA, RB, RC, RD, RE); KL(RB, RD, RA, RE, RC, 31);
- SI6(RB, RD, RA, RE, RC); KL(RA, RC, RE, RB, RD, 30);
- SI5(RA, RC, RE, RB, RD); KL(RC, RD, RA, RE, RB, 29);
- SI4(RC, RD, RA, RE, RB); KL(RC, RA, RB, RE, RD, 28);
- SI3(RC, RA, RB, RE, RD); KL(RB, RC, RD, RE, RA, 27);
- SI2(RB, RC, RD, RE, RA); KL(RC, RA, RE, RD, RB, 26);
- SI1(RC, RA, RE, RD, RB); KL(RB, RA, RE, RD, RC, 25);
- SI0(RB, RA, RE, RD, RC); KL(RE, RC, RA, RB, RD, 24);
- SI7(RE, RC, RA, RB, RD); KL(RC, RB, RE, RD, RA, 23);
- SI6(RC, RB, RE, RD, RA); KL(RE, RA, RD, RC, RB, 22);
- SI5(RE, RA, RD, RC, RB); KL(RA, RB, RE, RD, RC, 21);
- SI4(RA, RB, RE, RD, RC); KL(RA, RE, RC, RD, RB, 20);
- SI3(RA, RE, RC, RD, RB); KL(RC, RA, RB, RD, RE, 19);
- SI2(RC, RA, RB, RD, RE); KL(RA, RE, RD, RB, RC, 18);
- SI1(RA, RE, RD, RB, RC); KL(RC, RE, RD, RB, RA, 17);
- SI0(RC, RE, RD, RB, RA); KL(RD, RA, RE, RC, RB, 16);
- SI7(RD, RA, RE, RC, RB); KL(RA, RC, RD, RB, RE, 15);
- SI6(RA, RC, RD, RB, RE); KL(RD, RE, RB, RA, RC, 14);
- SI5(RD, RE, RB, RA, RC); KL(RE, RC, RD, RB, RA, 13);
- SI4(RE, RC, RD, RB, RA); KL(RE, RD, RA, RB, RC, 12);
- SI3(RE, RD, RA, RB, RC); KL(RA, RE, RC, RB, RD, 11);
- SI2(RA, RE, RC, RB, RD); KL(RE, RD, RB, RC, RA, 10);
- SI1(RE, RD, RB, RC, RA); KL(RA, RD, RB, RC, RE, 9);
- SI0(RA, RD, RB, RC, RE); KL(RB, RE, RD, RA, RC, 8);
- SI7(RB, RE, RD, RA, RC); KL(RE, RA, RB, RC, RD, 7);
- SI6(RE, RA, RB, RC, RD); KL(RB, RD, RC, RE, RA, 6);
- SI5(RB, RD, RC, RE, RA); KL(RD, RA, RB, RC, RE, 5);
- SI4(RD, RA, RB, RC, RE); KL(RD, RB, RE, RC, RA, 4);
- SI3(RD, RB, RE, RC, RA); KL(RE, RD, RA, RC, RB, 3);
- SI2(RE, RD, RA, RC, RB); KL(RD, RB, RC, RA, RE, 2);
- SI1(RD, RB, RC, RA, RE); KL(RE, RB, RC, RA, RD, 1);
- SI0(RE, RB, RC, RA, RD); K(RC, RD, RB, RE, RA, 0);
- movl arg_dst(%esp), %eax;
- write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
- ret;
- ENDPROC(serpent_dec_blk_4way)
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