forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
412 lines
8.8 KiB
412 lines
8.8 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
|
/* |
|
* Cast6 Cipher 8-way parallel algorithm (AVX/x86_64) |
|
* |
|
* Copyright (C) 2012 Johannes Goetzfried |
|
* <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> |
|
* |
|
* Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> |
|
*/ |
|
|
|
#include <linux/linkage.h> |
|
#include <asm/frame.h> |
|
#include "glue_helper-asm-avx.S" |
|
|
|
.file "cast6-avx-x86_64-asm_64.S" |
|
|
|
.extern cast_s1 |
|
.extern cast_s2 |
|
.extern cast_s3 |
|
.extern cast_s4 |
|
|
|
/* structure of crypto context */ |
|
#define km 0 |
|
#define kr (12*4*4) |
|
|
|
/* s-boxes */ |
|
#define s1 cast_s1 |
|
#define s2 cast_s2 |
|
#define s3 cast_s3 |
|
#define s4 cast_s4 |
|
|
|
/********************************************************************** |
|
8-way AVX cast6 |
|
**********************************************************************/ |
|
#define CTX %r15 |
|
|
|
#define RA1 %xmm0 |
|
#define RB1 %xmm1 |
|
#define RC1 %xmm2 |
|
#define RD1 %xmm3 |
|
|
|
#define RA2 %xmm4 |
|
#define RB2 %xmm5 |
|
#define RC2 %xmm6 |
|
#define RD2 %xmm7 |
|
|
|
#define RX %xmm8 |
|
|
|
#define RKM %xmm9 |
|
#define RKR %xmm10 |
|
#define RKRF %xmm11 |
|
#define RKRR %xmm12 |
|
#define R32 %xmm13 |
|
#define R1ST %xmm14 |
|
|
|
#define RTMP %xmm15 |
|
|
|
#define RID1 %rdi |
|
#define RID1d %edi |
|
#define RID2 %rsi |
|
#define RID2d %esi |
|
|
|
#define RGI1 %rdx |
|
#define RGI1bl %dl |
|
#define RGI1bh %dh |
|
#define RGI2 %rcx |
|
#define RGI2bl %cl |
|
#define RGI2bh %ch |
|
|
|
#define RGI3 %rax |
|
#define RGI3bl %al |
|
#define RGI3bh %ah |
|
#define RGI4 %rbx |
|
#define RGI4bl %bl |
|
#define RGI4bh %bh |
|
|
|
#define RFS1 %r8 |
|
#define RFS1d %r8d |
|
#define RFS2 %r9 |
|
#define RFS2d %r9d |
|
#define RFS3 %r10 |
|
#define RFS3d %r10d |
|
|
|
|
|
#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \ |
|
movzbl src ## bh, RID1d; \ |
|
movzbl src ## bl, RID2d; \ |
|
shrq $16, src; \ |
|
movl s1(, RID1, 4), dst ## d; \ |
|
op1 s2(, RID2, 4), dst ## d; \ |
|
movzbl src ## bh, RID1d; \ |
|
movzbl src ## bl, RID2d; \ |
|
interleave_op(il_reg); \ |
|
op2 s3(, RID1, 4), dst ## d; \ |
|
op3 s4(, RID2, 4), dst ## d; |
|
|
|
#define dummy(d) /* do nothing */ |
|
|
|
#define shr_next(reg) \ |
|
shrq $16, reg; |
|
|
|
#define F_head(a, x, gi1, gi2, op0) \ |
|
op0 a, RKM, x; \ |
|
vpslld RKRF, x, RTMP; \ |
|
vpsrld RKRR, x, x; \ |
|
vpor RTMP, x, x; \ |
|
\ |
|
vmovq x, gi1; \ |
|
vpextrq $1, x, gi2; |
|
|
|
#define F_tail(a, x, gi1, gi2, op1, op2, op3) \ |
|
lookup_32bit(##gi1, RFS1, op1, op2, op3, shr_next, ##gi1); \ |
|
lookup_32bit(##gi2, RFS3, op1, op2, op3, shr_next, ##gi2); \ |
|
\ |
|
lookup_32bit(##gi1, RFS2, op1, op2, op3, dummy, none); \ |
|
shlq $32, RFS2; \ |
|
orq RFS1, RFS2; \ |
|
lookup_32bit(##gi2, RFS1, op1, op2, op3, dummy, none); \ |
|
shlq $32, RFS1; \ |
|
orq RFS1, RFS3; \ |
|
\ |
|
vmovq RFS2, x; \ |
|
vpinsrq $1, RFS3, x, x; |
|
|
|
#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \ |
|
F_head(b1, RX, RGI1, RGI2, op0); \ |
|
F_head(b2, RX, RGI3, RGI4, op0); \ |
|
\ |
|
F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \ |
|
F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \ |
|
\ |
|
vpxor a1, RX, a1; \ |
|
vpxor a2, RTMP, a2; |
|
|
|
#define F1_2(a1, b1, a2, b2) \ |
|
F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl) |
|
#define F2_2(a1, b1, a2, b2) \ |
|
F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl) |
|
#define F3_2(a1, b1, a2, b2) \ |
|
F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl) |
|
|
|
#define qop(in, out, f) \ |
|
F ## f ## _2(out ## 1, in ## 1, out ## 2, in ## 2); |
|
|
|
#define get_round_keys(nn) \ |
|
vbroadcastss (km+(4*(nn)))(CTX), RKM; \ |
|
vpand R1ST, RKR, RKRF; \ |
|
vpsubq RKRF, R32, RKRR; \ |
|
vpsrldq $1, RKR, RKR; |
|
|
|
#define Q(n) \ |
|
get_round_keys(4*n+0); \ |
|
qop(RD, RC, 1); \ |
|
\ |
|
get_round_keys(4*n+1); \ |
|
qop(RC, RB, 2); \ |
|
\ |
|
get_round_keys(4*n+2); \ |
|
qop(RB, RA, 3); \ |
|
\ |
|
get_round_keys(4*n+3); \ |
|
qop(RA, RD, 1); |
|
|
|
#define QBAR(n) \ |
|
get_round_keys(4*n+3); \ |
|
qop(RA, RD, 1); \ |
|
\ |
|
get_round_keys(4*n+2); \ |
|
qop(RB, RA, 3); \ |
|
\ |
|
get_round_keys(4*n+1); \ |
|
qop(RC, RB, 2); \ |
|
\ |
|
get_round_keys(4*n+0); \ |
|
qop(RD, RC, 1); |
|
|
|
#define shuffle(mask) \ |
|
vpshufb mask, RKR, RKR; |
|
|
|
#define preload_rkr(n, do_mask, mask) \ |
|
vbroadcastss .L16_mask, RKR; \ |
|
/* add 16-bit rotation to key rotations (mod 32) */ \ |
|
vpxor (kr+n*16)(CTX), RKR, RKR; \ |
|
do_mask(mask); |
|
|
|
#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ |
|
vpunpckldq x1, x0, t0; \ |
|
vpunpckhdq x1, x0, t2; \ |
|
vpunpckldq x3, x2, t1; \ |
|
vpunpckhdq x3, x2, x3; \ |
|
\ |
|
vpunpcklqdq t1, t0, x0; \ |
|
vpunpckhqdq t1, t0, x1; \ |
|
vpunpcklqdq x3, t2, x2; \ |
|
vpunpckhqdq x3, t2, x3; |
|
|
|
#define inpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \ |
|
vpshufb rmask, x0, x0; \ |
|
vpshufb rmask, x1, x1; \ |
|
vpshufb rmask, x2, x2; \ |
|
vpshufb rmask, x3, x3; \ |
|
\ |
|
transpose_4x4(x0, x1, x2, x3, t0, t1, t2) |
|
|
|
#define outunpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \ |
|
transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \ |
|
\ |
|
vpshufb rmask, x0, x0; \ |
|
vpshufb rmask, x1, x1; \ |
|
vpshufb rmask, x2, x2; \ |
|
vpshufb rmask, x3, x3; |
|
|
|
.section .rodata.cst16, "aM", @progbits, 16 |
|
.align 16 |
|
.Lbswap_mask: |
|
.byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 |
|
.Lbswap128_mask: |
|
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
|
.Lrkr_enc_Q_Q_QBAR_QBAR: |
|
.byte 0, 1, 2, 3, 4, 5, 6, 7, 11, 10, 9, 8, 15, 14, 13, 12 |
|
.Lrkr_enc_QBAR_QBAR_QBAR_QBAR: |
|
.byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 |
|
.Lrkr_dec_Q_Q_Q_Q: |
|
.byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3 |
|
.Lrkr_dec_Q_Q_QBAR_QBAR: |
|
.byte 12, 13, 14, 15, 8, 9, 10, 11, 7, 6, 5, 4, 3, 2, 1, 0 |
|
.Lrkr_dec_QBAR_QBAR_QBAR_QBAR: |
|
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
|
|
|
.section .rodata.cst4.L16_mask, "aM", @progbits, 4 |
|
.align 4 |
|
.L16_mask: |
|
.byte 16, 16, 16, 16 |
|
|
|
.section .rodata.cst4.L32_mask, "aM", @progbits, 4 |
|
.align 4 |
|
.L32_mask: |
|
.byte 32, 0, 0, 0 |
|
|
|
.section .rodata.cst4.first_mask, "aM", @progbits, 4 |
|
.align 4 |
|
.Lfirst_mask: |
|
.byte 0x1f, 0, 0, 0 |
|
|
|
.text |
|
|
|
.align 8 |
|
SYM_FUNC_START_LOCAL(__cast6_enc_blk8) |
|
/* input: |
|
* %rdi: ctx |
|
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks |
|
* output: |
|
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks |
|
*/ |
|
|
|
pushq %r15; |
|
pushq %rbx; |
|
|
|
movq %rdi, CTX; |
|
|
|
vmovdqa .Lbswap_mask, RKM; |
|
vmovd .Lfirst_mask, R1ST; |
|
vmovd .L32_mask, R32; |
|
|
|
inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); |
|
inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); |
|
|
|
preload_rkr(0, dummy, none); |
|
Q(0); |
|
Q(1); |
|
Q(2); |
|
Q(3); |
|
preload_rkr(1, shuffle, .Lrkr_enc_Q_Q_QBAR_QBAR); |
|
Q(4); |
|
Q(5); |
|
QBAR(6); |
|
QBAR(7); |
|
preload_rkr(2, shuffle, .Lrkr_enc_QBAR_QBAR_QBAR_QBAR); |
|
QBAR(8); |
|
QBAR(9); |
|
QBAR(10); |
|
QBAR(11); |
|
|
|
popq %rbx; |
|
popq %r15; |
|
|
|
vmovdqa .Lbswap_mask, RKM; |
|
|
|
outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); |
|
outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); |
|
|
|
ret; |
|
SYM_FUNC_END(__cast6_enc_blk8) |
|
|
|
.align 8 |
|
SYM_FUNC_START_LOCAL(__cast6_dec_blk8) |
|
/* input: |
|
* %rdi: ctx |
|
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks |
|
* output: |
|
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks |
|
*/ |
|
|
|
pushq %r15; |
|
pushq %rbx; |
|
|
|
movq %rdi, CTX; |
|
|
|
vmovdqa .Lbswap_mask, RKM; |
|
vmovd .Lfirst_mask, R1ST; |
|
vmovd .L32_mask, R32; |
|
|
|
inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); |
|
inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); |
|
|
|
preload_rkr(2, shuffle, .Lrkr_dec_Q_Q_Q_Q); |
|
Q(11); |
|
Q(10); |
|
Q(9); |
|
Q(8); |
|
preload_rkr(1, shuffle, .Lrkr_dec_Q_Q_QBAR_QBAR); |
|
Q(7); |
|
Q(6); |
|
QBAR(5); |
|
QBAR(4); |
|
preload_rkr(0, shuffle, .Lrkr_dec_QBAR_QBAR_QBAR_QBAR); |
|
QBAR(3); |
|
QBAR(2); |
|
QBAR(1); |
|
QBAR(0); |
|
|
|
popq %rbx; |
|
popq %r15; |
|
|
|
vmovdqa .Lbswap_mask, RKM; |
|
outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM); |
|
outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM); |
|
|
|
ret; |
|
SYM_FUNC_END(__cast6_dec_blk8) |
|
|
|
SYM_FUNC_START(cast6_ecb_enc_8way) |
|
/* input: |
|
* %rdi: ctx |
|
* %rsi: dst |
|
* %rdx: src |
|
*/ |
|
FRAME_BEGIN |
|
pushq %r15; |
|
|
|
movq %rdi, CTX; |
|
movq %rsi, %r11; |
|
|
|
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
call __cast6_enc_blk8; |
|
|
|
store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
popq %r15; |
|
FRAME_END |
|
ret; |
|
SYM_FUNC_END(cast6_ecb_enc_8way) |
|
|
|
SYM_FUNC_START(cast6_ecb_dec_8way) |
|
/* input: |
|
* %rdi: ctx |
|
* %rsi: dst |
|
* %rdx: src |
|
*/ |
|
FRAME_BEGIN |
|
pushq %r15; |
|
|
|
movq %rdi, CTX; |
|
movq %rsi, %r11; |
|
|
|
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
call __cast6_dec_blk8; |
|
|
|
store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
popq %r15; |
|
FRAME_END |
|
ret; |
|
SYM_FUNC_END(cast6_ecb_dec_8way) |
|
|
|
SYM_FUNC_START(cast6_cbc_dec_8way) |
|
/* input: |
|
* %rdi: ctx |
|
* %rsi: dst |
|
* %rdx: src |
|
*/ |
|
FRAME_BEGIN |
|
pushq %r12; |
|
pushq %r15; |
|
|
|
movq %rdi, CTX; |
|
movq %rsi, %r11; |
|
movq %rdx, %r12; |
|
|
|
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
call __cast6_dec_blk8; |
|
|
|
store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); |
|
|
|
popq %r15; |
|
popq %r12; |
|
FRAME_END |
|
ret; |
|
SYM_FUNC_END(cast6_cbc_dec_8way)
|
|
|