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May 20, 2020 11:33
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| // Extracted from https://github.com/pyjamask-cipher/pyjamask-reference-implementation/blob/master/pyjamask.c | |
| #include <cstdint> | |
| #define right_rotate(row) \ | |
| row = (row >> 1) | (row << 31); | |
| #define COL_M0 0xa3861085 | |
| #define COL_M1 0x63417021 | |
| #define COL_M2 0x692cf280 | |
| #define COL_M3 0x48a54813 | |
| static uint32_t mat_mult(uint32_t mat_col, uint32_t vec) | |
| { | |
| int i; | |
| uint32_t mask, res=0; | |
| #pragma unroll | |
| for (i = 31; i>=0; i--) | |
| { | |
| mask = -((vec >> i) & 1); | |
| res ^= mask & mat_col; | |
| right_rotate(mat_col); | |
| } | |
| return res; | |
| } | |
| extern "C" uint32_t mat_mult_m0(uint32_t vec) | |
| { | |
| return mat_mult(COL_M0, vec); | |
| } |
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| .text | |
| .intel_syntax noprefix | |
| .file "pyjamask.cpp" | |
| .section .rodata,"a",@progbits | |
| .p2align 6 # -- Begin function mat_mult_m0 | |
| .LCPI0_0: | |
| .byte 208 # 0xd0 | |
| .byte 104 # 0x68 | |
| .byte 180 # 0xb4 | |
| .byte 90 # 0x5a | |
| .byte 45 # 0x2d | |
| .byte 22 # 0x16 | |
| .byte 139 # 0x8b | |
| .byte 197 # 0xc5 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 161 # 0xa1 | |
| .byte 48 # 0x30 | |
| .byte 24 # 0x18 | |
| .byte 12 # 0xc | |
| .byte 134 # 0x86 | |
| .byte 67 # 0x43 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 226 # 0xe2 | |
| .byte 113 # 0x71 | |
| .byte 56 # 0x38 | |
| .byte 28 # 0x1c | |
| .byte 14 # 0xe | |
| .byte 135 # 0x87 | |
| .byte 195 # 0xc3 | |
| .byte 97 # 0x61 | |
| .byte 226 # 0xe2 | |
| .byte 113 # 0x71 | |
| .byte 56 # 0x38 | |
| .byte 28 # 0x1c | |
| .byte 14 # 0xe | |
| .byte 135 # 0x87 | |
| .byte 195 # 0xc3 | |
| .byte 97 # 0x61 | |
| .byte 208 # 0xd0 | |
| .byte 104 # 0x68 | |
| .byte 180 # 0xb4 | |
| .byte 90 # 0x5a | |
| .byte 45 # 0x2d | |
| .byte 22 # 0x16 | |
| .byte 139 # 0x8b | |
| .byte 197 # 0xc5 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 161 # 0xa1 | |
| .byte 48 # 0x30 | |
| .byte 24 # 0x18 | |
| .byte 12 # 0xc | |
| .byte 134 # 0x86 | |
| .byte 67 # 0x43 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .LCPI0_1: | |
| .byte 48 # 0x30 | |
| .byte 24 # 0x18 | |
| .byte 12 # 0xc | |
| .byte 134 # 0x86 | |
| .byte 67 # 0x43 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 226 # 0xe2 | |
| .byte 113 # 0x71 | |
| .byte 56 # 0x38 | |
| .byte 28 # 0x1c | |
| .byte 14 # 0xe | |
| .byte 135 # 0x87 | |
| .byte 195 # 0xc3 | |
| .byte 97 # 0x61 | |
| .byte 208 # 0xd0 | |
| .byte 104 # 0x68 | |
| .byte 180 # 0xb4 | |
| .byte 90 # 0x5a | |
| .byte 45 # 0x2d | |
| .byte 22 # 0x16 | |
| .byte 139 # 0x8b | |
| .byte 197 # 0xc5 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 161 # 0xa1 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 132 # 0x84 | |
| .byte 66 # 0x42 | |
| .byte 161 # 0xa1 | |
| .byte 48 # 0x30 | |
| .byte 24 # 0x18 | |
| .byte 12 # 0xc | |
| .byte 134 # 0x86 | |
| .byte 67 # 0x43 | |
| .byte 33 # 0x21 | |
| .byte 16 # 0x10 | |
| .byte 8 # 0x8 | |
| .byte 226 # 0xe2 | |
| .byte 113 # 0x71 | |
| .byte 56 # 0x38 | |
| .byte 28 # 0x1c | |
| .byte 14 # 0xe | |
| .byte 135 # 0x87 | |
| .byte 195 # 0xc3 | |
| .byte 97 # 0x61 | |
| .byte 208 # 0xd0 | |
| .byte 104 # 0x68 | |
| .byte 180 # 0xb4 | |
| .byte 90 # 0x5a | |
| .byte 45 # 0x2d | |
| .byte 22 # 0x16 | |
| .byte 139 # 0x8b | |
| .byte 197 # 0xc5 | |
| .section .rodata.cst16,"aM",@progbits,16 | |
| .p2align 4 | |
| .LCPI0_2: | |
| .byte 0 # 0x0 | |
| .byte 8 # 0x8 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .zero 1 | |
| .text | |
| .globl mat_mult_m0 | |
| .p2align 4, 0x90 | |
| .type mat_mult_m0,@function | |
| mat_mult_m0: # @mat_mult_m0 | |
| .Lmat_mult_m0$local: | |
| .cfi_startproc | |
| # %bb.0: | |
| vmovd xmm0, edi | |
| vpbroadcastb ymm0, xmm0 | |
| mov eax, edi | |
| shr eax, 8 | |
| vmovd xmm1, eax | |
| vpbroadcastb ymm1, xmm1 | |
| vinserti64x4 zmm0, zmm0, ymm1, 1 | |
| mov eax, edi | |
| shr eax, 16 | |
| vmovd xmm1, eax | |
| vpbroadcastb ymm1, xmm1 | |
| shr edi, 24 | |
| vmovd xmm2, edi | |
| vpbroadcastb ymm2, xmm2 | |
| vgf2p8affineqb zmm0, zmm0, zmmword ptr [rip + .LCPI0_0], 0 | |
| vinserti64x4 zmm1, zmm1, ymm2, 1 | |
| vgf2p8affineqb zmm1, zmm1, zmmword ptr [rip + .LCPI0_1], 0 | |
| vpxorq zmm0, zmm0, zmm1 | |
| vextracti64x4 ymm1, zmm0, 1 | |
| vpxor ymm0, ymm0, ymm1 | |
| vextracti128 xmm1, ymm0, 1 | |
| vmovdqa xmm2, xmmword ptr [rip + .LCPI0_2] # xmm2 = <0,8,u,u,u,u,u,u,u,u,u,u,u,u,u,u> | |
| vpshufb xmm1, xmm1, xmm2 | |
| vpshufb xmm0, xmm0, xmm2 | |
| vpunpcklwd xmm0, xmm0, xmm1 # xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3] | |
| vmovd eax, xmm0 | |
| vzeroupper | |
| ret | |
| .Lfunc_end0: | |
| .size mat_mult_m0, .Lfunc_end0-mat_mult_m0 | |
| .cfi_endproc | |
| # -- End function | |
| .ident "clang version 10.0.0-4 " | |
| .section ".note.GNU-stack","",@progbits |
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