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socracked.cu
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socracked.cu
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/* socracked.cu
CUDA bitslice implementation of attacks on SoCracked.
Copyright (C) 2017-2018 Marcus Dansarie <[email protected]>
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 3 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, see <http://www.gnu.org/licenses/>. */
#include <assert.h>
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <cuda_profiler_api.h>
#include "sodark.h"
#include "socracked.h"
#include "socracked_cuda.h"
typedef struct {
int b0;
int b1;
int b2;
int b3;
int b4;
int b5;
int b6;
int b7;
} eightbits;
typedef struct {
eightbits a;
eightbits b;
eightbits c;
} twentyfourbits;
/* Device constant memory. */
__constant__ int pt1_c[24];
__constant__ int pt2_c[24];
__constant__ int ct1_c[24];
__constant__ int tw1_c[64];
__constant__ int tw2_c[64];
__constant__ int key_c[24];
__constant__ int key3_c[256];
/* Device functions */
/* Macro for using the CUDA lop3.b32 instruction.
a - output variable
b - input 1
c - input 2
d - input 3
e - lookup table. */
#define LUT(a,b,c,d,e) asm("lop3.b32 %0, %1, %2, %3, "#e";" : "=r"(a): "r"(b), "r"(c), "r"(d));
/* The functions s0 to s7 calculate one output bit each of the SoDark S-box. */
__device__ __forceinline__ int s0(eightbits in) {
int var8; LUT(var8, in.b6, in.b3, in.b4, 0x5e);
int var9 = var8 | in.b5;
int var10; LUT(var10, in.b5, in.b4, in.b6, 0x8e);
int var11; LUT(var11, in.b1, var9, var10, 0xac);
int var12; LUT(var12, in.b3, in.b6, var10, 0x68);
int var13; LUT(var13, in.b1, in.b4, var11, 0x8f);
int var14; LUT(var14, var13, var12, in.b5, 0xca);
int var15; LUT(var15, in.b2, var11, var14, 0xac);
int var16; LUT(var16, in.b2, in.b4, var13, 0x7c);
int var17; LUT(var17, in.b1, in.b6, var14, 0x7a);
int var18; LUT(var18, var17, var16, var9, 0x96);
int var19; LUT(var19, in.b2, var12, var18, 0x09);
int var20; LUT(var20, in.b1, in.b4, in.b5, 0x25);
int var21; LUT(var21, var20, var19, in.b6, 0xed);
int var22; LUT(var22, in.b3, var18, var21, 0xac);
int var23; LUT(var23, in.b7, var15, var22, 0xac);
int var24; LUT(var24, in.b3, var16, var20, 0x63);
int var25; LUT(var25, var24, var12, var15, 0x09);
int var26; LUT(var26, in.b4, var25, var21, 0x71);
int var27; LUT(var27, in.b6, var25, var26, 0xac);
int var28; LUT(var28, in.b5, in.b6, var25, 0x6b);
int var29; LUT(var29, var28, var8, var14, 0x58);
int var30; LUT(var30, in.b1, var27, var29, 0xac);
int var31; LUT(var31, in.b2, var23, var24, 0x4e);
int var32; LUT(var32, var31, var17, var21, 0x92);
int var33; LUT(var33, in.b2, var10, var30, 0x42);
int var34; LUT(var34, var33, var13, var19, 0x41);
int var35; LUT(var35, in.b6, var32, var34, 0xac);
int var36; LUT(var36, in.b7, var30, var35, 0xac);
int out0; LUT(out0, in.b0, var23, var36, 0xac);
return out0;
}
__device__ __forceinline__ int s1(eightbits in) {
int var8; LUT(var8, in.b4, in.b5, in.b6, 0x76);
int var9; LUT(var9, in.b5, in.b6, in.b7, 0xef);
int var10; LUT(var10, in.b4, var8, var9, 0xac);
int var11; LUT(var11, in.b4, in.b5, in.b6, 0x18);
int var12; LUT(var12, var11, in.b7, var8, 0xa9);
int var13; LUT(var13, in.b3, var10, var12, 0xac);
int var14; LUT(var14, in.b7, var9, var12, 0x86);
int var15; LUT(var15, in.b3, in.b4, var13, 0xe3);
int var16; LUT(var16, var15, var14, var11, 0x8b);
int var17; LUT(var17, in.b1, var13, var16, 0xac);
int var18; LUT(var18, in.b4, in.b6, var17, 0x49);
int var19; LUT(var19, in.b3, in.b7, var11, 0x36);
int var20; LUT(var20, var19, var18, var14, 0xbc);
int var21; LUT(var21, in.b6, var15, var20, 0x96);
int var22; LUT(var22, in.b3, var11, var13, 0x29);
int var23; LUT(var23, var22, var21, var14, 0x9e);
int var24; LUT(var24, in.b1, var20, var23, 0xac);
int var25; LUT(var25, in.b2, var17, var24, 0xac);
int var26; LUT(var26, in.b3, in.b6, var24, 0x7a);
int var27; LUT(var27, in.b1, var9, var21, 0x60);
int var28; LUT(var28, var27, var26, var16, 0x1c);
int var29; LUT(var29, in.b1, var8, var28, 0x97);
int var30; LUT(var30, var29, in.b6, var23, 0xd6);
int var31; LUT(var31, in.b4, var28, var30, 0xac);
int var32; LUT(var32, var21, var24, var29, 0xc5);
int var33; LUT(var33, var12, var15, var19, 0x78);
int var34; LUT(var34, var33, var32, in.b7, 0xd6);
int var35; LUT(var35, var10, var14, var18, 0x7a);
int var36; LUT(var36, var35, in.b3, var29, 0x87);
int var37; LUT(var37, in.b1, var34, var36, 0xac);
int var38; LUT(var38, in.b2, var31, var37, 0xac);
int out1; LUT(out1, in.b0, var25, var38, 0xac);
return out1;
}
__device__ __forceinline__ int s2(eightbits in) {
int var8; LUT(var8, in.b5, in.b7, in.b6, 0xe5);
int var9; LUT(var9, in.b6, in.b7, in.b5, 0xc7);
int var10; LUT(var10, in.b3, var8, var9, 0xac);
int var11; LUT(var11, in.b3, in.b6, in.b7, 0x2c);
int var12; LUT(var12, var11, var8, var9, 0xe3);
int var13; LUT(var13, in.b0, var10, var12, 0xac);
int var14; LUT(var14, in.b6, var10, var13, 0xa7);
int var15; LUT(var15, in.b0, in.b3, var9, 0x86);
int var16; LUT(var16, var15, var14, in.b7, 0x5c);
int var17; LUT(var17, in.b4, var13, var16, 0xac);
int var18; LUT(var18, in.b7, var15, var17, 0xd6);
int var19; LUT(var19, in.b4, in.b5, var9, 0xd4);
int var20; LUT(var20, var19, var18, var16, 0xd3);
int var21; LUT(var21, in.b4, var16, var20, 0x8e);
int var22; LUT(var22, var21, in.b3, var19, 0x69);
int var23; LUT(var23, in.b0, var20, var22, 0xac);
int var24; LUT(var24, in.b1, var17, var23, 0xac);
int var25; LUT(var25, in.b6, var8, var21, 0x38);
int var26; LUT(var26, in.b4, var11, var22, 0x97);
int var27; LUT(var27, var26, var25, var20, 0xc2);
int var28; LUT(var28, var11, var21, var24, 0xa6);
int var29; LUT(var29, var10, var22, var25, 0x6f);
int var30; LUT(var30, var29, var28, in.b7, 0x38);
int var31; LUT(var31, in.b0, var27, var30, 0xac);
int var32; LUT(var32, var10, var14, var25, 0x58);
int var33; LUT(var33, var32, var26, var30, 0xb4);
int var34; LUT(var34, in.b7, var8, var24, 0x3a);
int var35; LUT(var35, in.b5, var9, var33, 0x52);
int var36; LUT(var36, var35, var34, in.b4, 0x79);
int var37; LUT(var37, in.b0, var33, var36, 0xac);
int var38; LUT(var38, in.b1, var31, var37, 0xac);
int out2; LUT(out2, in.b2, var24, var38, 0xac);
return out2;
}
__device__ __forceinline__ int s3(eightbits in) {
int var8; LUT(var8, in.b3, in.b2, in.b1, 0x85);
int var9; LUT(var9, in.b4, var8, in.b5, 0xac);
int var10; LUT(var10, in.b2, in.b3, in.b4, 0xad);
int var11; LUT(var11, var10, in.b1, var8, 0x9c);
int var12; LUT(var12, in.b5, var9, var11, 0xac);
int var13; LUT(var13, in.b5, var10, var11, 0xd9);
int var14; LUT(var14, in.b4, var8, var12, 0x14);
int var15; LUT(var15, var14, var13, in.b2, 0xa6);
int var16; LUT(var16, in.b7, var12, var15, 0xac);
int var17; LUT(var17, in.b5, var14, var16, 0x1a);
int var18; LUT(var18, in.b4, in.b7, var10, 0x75);
int var19; LUT(var19, var18, var17, var15, 0x25);
int var20; LUT(var20, var9, var10, var15, 0xe6);
int var21; LUT(var21, in.b1, in.b2, in.b5, 0x6d);
int var22; LUT(var22, var21, var20, in.b7, 0xb4);
int var23; LUT(var23, in.b3, var19, var22, 0xac);
int var24; LUT(var24, in.b6, var16, var23, 0xac);
int var25; LUT(var25, in.b6, var18, var21, 0x18);
int var26; LUT(var26, in.b2, in.b5, var11, 0xe1);
int var27; LUT(var27, var26, var25, var23, 0xde);
int var28; LUT(var28, var8, var13, var24, 0xd4);
int var29; LUT(var29, in.b6, var10, var22, 0xc4);
int var30; LUT(var30, var29, var28, var14, 0x96);
int var31; LUT(var31, in.b1, var27, var30, 0xac);
int var32; LUT(var32, var17, var21, var31, 0x5b);
int var33; LUT(var33, var32, in.b5, var29, 0x61);
int var34; LUT(var34, var19, var31, var33, 0x92);
int var35; LUT(var35, in.b4, in.b5, var25, 0x5c);
int var36; LUT(var36, var35, var34, var27, 0x68);
int var37; LUT(var37, in.b3, var33, var36, 0xac);
int var38; LUT(var38, in.b7, var31, var37, 0xac);
int out3; LUT(out3, in.b0, var24, var38, 0xac);
return out3;
}
__device__ __forceinline__ int s4(eightbits in) {
int var8; LUT(var8, in.b2, in.b5, in.b1, 0xe3);
int var9; LUT(var9, var8, in.b1, in.b7, 0xbe);
int var10; LUT(var10, in.b0, var8, var9, 0xac);
int var11; LUT(var11, var9, in.b1, in.b2, 0x49);
int var12; LUT(var12, in.b4, var10, var11, 0xac);
int var13; LUT(var13, var8, var9, var12, 0x6f);
int var14; LUT(var14, in.b0, in.b4, in.b7, 0x71);
int var15; LUT(var15, var14, var13, in.b2, 0x68);
int var16; LUT(var16, in.b6, var12, var15, 0xac);
int var17; LUT(var17, in.b4, in.b6, var13, 0x68);
int var18; LUT(var18, in.b0, in.b1, var16, 0x27);
int var19; LUT(var19, var18, var17, var15, 0x79);
int var20; LUT(var20, var14, var18, var19, 0xf6);
int var21; LUT(var21, in.b0, in.b1, var13, 0x92);
int var22; LUT(var22, var21, var20, in.b6, 0x69);
int var23; LUT(var23, in.b7, var19, var22, 0xac);
int var24; LUT(var24, in.b3, var16, var23, 0xac);
int var25; LUT(var25, in.b7, var19, var22, 0x26);
int var26; LUT(var26, in.b1, in.b6, var15, 0xd1);
int var27; LUT(var27, var26, var25, var17, 0x9c);
int var28; LUT(var28, var12, var18, var20, 0xe0);
int var29; LUT(var29, var10, var22, var23, 0x29);
int var30; LUT(var30, var29, var28, in.b4, 0x96);
int var31; LUT(var31, in.b3, var27, var30, 0xac);
int var32; LUT(var32, in.b6, var24, var28, 0x56);
int var33; LUT(var33, var32, in.b1, in.b3, 0x79);
int var34; LUT(var34, var21, var30, var33, 0x84);
int var35; LUT(var35, in.b1, in.b7, var32, 0xa9);
int var36; LUT(var36, var35, var34, in.b6, 0x9a);
int var37; LUT(var37, in.b0, var33, var36, 0xac);
int var38; LUT(var38, in.b2, var31, var37, 0xac);
int out4; LUT(out4, in.b5, var24, var38, 0xac);
return out4;
}
__device__ __forceinline__ int s5(eightbits in) {
int var8; LUT(var8, in.b7, in.b5, in.b2, 0xa8);
int var9; LUT(var9, in.b5, in.b3, in.b2, 0x3d);
int var10; LUT(var10, in.b0, var8, var9, 0xac);
int var11; LUT(var11, in.b0, in.b3, in.b5, 0xd3);
int var12; LUT(var12, var11, var8, var9, 0x92);
int var13; LUT(var13, in.b1, var10, var12, 0xac);
int var14; LUT(var14, in.b3, var8, var11, 0x86);
int var15; LUT(var15, in.b1, var9, var12, 0x14);
int var16; LUT(var16, var15, var14, var13, 0x79);
int var17; LUT(var17, in.b7, var13, var16, 0xac);
int var18; LUT(var18, in.b0, in.b5, var12, 0x5a);
int var19; LUT(var19, var18, in.b7, var9, 0x94);
int var20; LUT(var20, in.b7, var12, var19, 0x61);
int var21; LUT(var21, in.b2, in.b3, var9, 0xb5);
int var22; LUT(var22, var21, var20, in.b5, 0x97);
int var23; LUT(var23, in.b1, var19, var22, 0xac);
int var24; LUT(var24, in.b4, var17, var23, 0xac);
int var25; LUT(var25, in.b3, in.b4, in.b5, 0x0d);
int var26; LUT(var26, var25, var18, var24, 0x38);
int var27; LUT(var27, var9, var20, var26, 0x8e);
int var28; LUT(var28, in.b4, var10, var19, 0x1a);
int var29; LUT(var29, var28, var27, var24, 0xa9);
int var30; LUT(var30, in.b1, var26, var29, 0xac);
int var31; LUT(var31, in.b7, var22, var28, 0x35);
int var32; LUT(var32, var31, var21, var24, 0x85);
int var33; LUT(var33, in.b5, in.b7, var19, 0xa0);
int var34; LUT(var34, in.b3, var28, var31, 0x3d);
int var35; LUT(var35, var34, var33, var32, 0x96);
int var36; LUT(var36, in.b1, var32, var35, 0xac);
int var37; LUT(var37, in.b2, var30, var36, 0xac);
int out5; LUT(out5, in.b6, var24, var37, 0xac);
return out5;
}
__device__ __forceinline__ int s6(eightbits in) {
int var8; LUT(var8, in.b1, in.b2, in.b6, 0x61);
int var9; LUT(var9, in.b7, in.b6, var8, 0xac);
int var10; LUT(var10, in.b2, in.b7, var8, 0x76);
int var11; LUT(var11, var10, in.b1, in.b6, 0x24);
int var12; LUT(var12, in.b5, var9, var11, 0xac);
int var13; LUT(var13, in.b6, in.b7, var8, 0xfc);
int var14; LUT(var14, in.b1, in.b2, in.b5, 0x5b);
int var15; LUT(var15, var14, var13, var12, 0x59);
int var16; LUT(var16, in.b0, var12, var15, 0xac);
int var17; LUT(var17, var8, var15, var16, 0x73);
int var18; LUT(var18, var17, in.b6, in.b7, 0x8b);
int var19; LUT(var19, in.b1, in.b6, var18, 0xe8);
int var20; LUT(var20, in.b0, in.b2, var11, 0x49);
int var21; LUT(var21, var20, var19, var10, 0xa7);
int var22; LUT(var22, in.b5, var18, var21, 0xac);
int var23; LUT(var23, in.b4, var16, var22, 0xac);
int var24; LUT(var24, in.b0, in.b5, var18, 0x5b);
int var25; LUT(var25, var24, var8, var14, 0x29);
int var26; LUT(var26, in.b5, var8, var13, 0x4a);
int var27; LUT(var27, in.b0, in.b7, var12, 0x7e);
int var28; LUT(var28, var27, var26, var18, 0x69);
int var29; LUT(var29, in.b2, var25, var28, 0xac);
int var30; LUT(var30, in.b6, in.b7, var8, 0x4f);
int var31; LUT(var31, var30, in.b5, var10, 0x69);
int var32; LUT(var32, var14, var26, var28, 0xa4);
int var33; LUT(var33, in.b1, in.b6, var29, 0x98);
int var34; LUT(var34, var33, var32, var13, 0x39);
int var35; LUT(var35, in.b0, var31, var34, 0xac);
int var36; LUT(var36, in.b4, var29, var35, 0xac);
int out6; LUT(out6, in.b3, var23, var36, 0xac);
return out6;
}
__device__ __forceinline__ int s7(eightbits in) {
int var8; LUT(var8, in.b1, in.b0, in.b2, 0x6f);
int var9; LUT(var9, in.b6, var8, in.b2, 0xac);
int var10; LUT(var10, in.b0, in.b1, in.b2, 0x5c);
int var11; LUT(var11, var10, in.b6, var9, 0x86);
int var12; LUT(var12, in.b3, var9, var11, 0xac);
int var13; LUT(var13, in.b2, in.b3, var9, 0x7b);
int var14; LUT(var14, in.b0, in.b6, var12, 0x19);
int var15; LUT(var15, var14, var13, var8, 0xb6);
int var16; LUT(var16, in.b4, var12, var15, 0xac);
int var17; LUT(var17, in.b2, in.b6, var15, 0x72);
int var18; LUT(var18, in.b0, in.b1, in.b3, 0xa9);
int var19; LUT(var19, var18, var17, var14, 0x36);
int var20; LUT(var20, in.b6, var10, var18, 0xd6);
int var21; LUT(var21, in.b1, var12, var13, 0x46);
int var22; LUT(var22, var21, var20, var17, 0xcb);
int var23; LUT(var23, in.b4, var19, var22, 0xac);
int var24; LUT(var24, in.b7, var16, var23, 0xac);
int var25; LUT(var25, in.b7, var19, var20, 0x79);
int var26; LUT(var26, in.b3, var11, var17, 0x3e);
int var27; LUT(var27, var26, var25, var9, 0x6a);
int var28; LUT(var28, in.b7, var9, var13, 0x4d);
int var29; LUT(var29, var28, in.b3, var20, 0x96);
int var30; LUT(var30, in.b4, var27, var29, 0xac);
int var31; LUT(var31, var16, var27, var29, 0xf2);
int var32; LUT(var32, in.b3, in.b7, var23, 0xe6);
int var33; LUT(var33, var32, var31, var13, 0x92);
int var34; LUT(var34, in.b7, var16, var29, 0xd4);
int var35; LUT(var35, var34, var22, var30, 0x16);
int var36; LUT(var36, in.b6, var33, var35, 0xac);
int var37; LUT(var37, in.b1, var30, var36, 0xac);
int out7; LUT(out7, in.b5, var24, var37, 0xac);
return out7;
}
/* Bitsliced single round encryption. Used by the brute force search algorithm
in an unrolled loop. */
template <bool last>
__device__ __forceinline__ twentyfourbits encrypt_round(twentyfourbits bits, int round,
volatile const int * __restrict key_hi) {
volatile int bidx = blockIdx.x;
volatile int tidx = threadIdx.x;
eightbits cur;
/* Calculate round tweak offsets. */
int tw_off_a, tw_off_b, tw_off_c;
switch (round % 8) {
case 0:
tw_off_a = 16;
tw_off_c = 8;
tw_off_b = 0;
break;
case 1:
tw_off_a = 56;
tw_off_c = 48;
tw_off_b = 40;
break;
case 2:
tw_off_a = 32;
tw_off_c = 24;
tw_off_b = 16;
break;
case 3:
tw_off_a = 8;
tw_off_c = 0;
tw_off_b = 56;
break;
case 4:
tw_off_a = 48;
tw_off_c = 40;
tw_off_b = 32;
break;
case 5:
tw_off_a = 24;
tw_off_c = 16;
tw_off_b = 8;
break;
case 6:
tw_off_a = 0;
tw_off_c = 56;
tw_off_b = 48;
break;
case 7:
tw_off_a = 40;
tw_off_c = 32;
tw_off_b = 24;
break;
}
/* A xor B xor key xor tweak. */
switch (round % 7) {
case 0:
cur.b7 = (0 - ((bidx >> 8) & 1)) ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = (0 - ((bidx >> 7) & 1)) ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = (0 - ((bidx >> 6) & 1)) ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = (0 - ((bidx >> 5) & 1)) ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = (0 - ((bidx >> 4) & 1)) ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = (0 - ((bidx >> 3) & 1)) ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = (0 - ((bidx >> 2) & 1)) ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = (0 - ((bidx >> 1) & 1)) ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 1:
cur.b7 = key_hi[23] ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = key_hi[22] ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = key_hi[21] ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = key_hi[20] ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = key_hi[19] ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = key_hi[18] ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = key_hi[17] ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = key_hi[16] ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 2:
cur.b7 = (0 - ((bidx >> 16) & 1)) ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = (0 - ((bidx >> 15) & 1)) ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = (0 - ((bidx >> 14) & 1)) ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = (0 - ((bidx >> 13) & 1)) ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = (0 - ((bidx >> 12) & 1)) ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = (0 - ((bidx >> 11) & 1)) ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = (0 - ((bidx >> 10) & 1)) ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = (0 - ((bidx >> 9) & 1)) ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 3:
cur.b7 = (0 - ((tidx >> 2) & 1)) ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = (0 - ((tidx >> 1) & 1)) ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = (0 - (tidx & 1)) ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = 0xffff0000 ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = 0xff00ff00 ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = 0xf0f0f0f0 ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = 0xcccccccc ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = 0xaaaaaaaa ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 4:
cur.b7 = key_hi[7] ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = key_hi[6] ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = key_hi[5] ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = key_hi[4] ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = key_hi[3] ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = key_hi[2] ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = key_hi[1] ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = key_hi[0] ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 5:
cur.b7 = (0 - (bidx & 1)) ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = (0 - ((tidx >> 9) & 1)) ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = (0 - ((tidx >> 8) & 1)) ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = (0 - ((tidx >> 7) & 1)) ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = (0 - ((tidx >> 6) & 1)) ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = (0 - ((tidx >> 5) & 1)) ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = (0 - ((tidx >> 4) & 1)) ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = (0 - ((tidx >> 3) & 1)) ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
case 6:
cur.b7 = key_hi[15] ^ tw1_c[tw_off_a + 7] ^ bits.b.b7 ^ bits.a.b7;
cur.b6 = key_hi[14] ^ tw1_c[tw_off_a + 6] ^ bits.b.b6 ^ bits.a.b6;
cur.b5 = key_hi[13] ^ tw1_c[tw_off_a + 5] ^ bits.b.b5 ^ bits.a.b5;
cur.b4 = key_hi[12] ^ tw1_c[tw_off_a + 4] ^ bits.b.b4 ^ bits.a.b4;
cur.b3 = key_hi[11] ^ tw1_c[tw_off_a + 3] ^ bits.b.b3 ^ bits.a.b3;
cur.b2 = key_hi[10] ^ tw1_c[tw_off_a + 2] ^ bits.b.b2 ^ bits.a.b2;
cur.b1 = key_hi[9] ^ tw1_c[tw_off_a + 1] ^ bits.b.b1 ^ bits.a.b1;
cur.b0 = key_hi[8] ^ tw1_c[tw_off_a] ^ bits.b.b0 ^ bits.a.b0;
break;
}
if (last) {
bits.a = cur;
} else {
bits.a.b0 = s0(cur);
bits.a.b1 = s1(cur);
bits.a.b2 = s2(cur);
bits.a.b3 = s3(cur);
bits.a.b4 = s4(cur);
bits.a.b5 = s5(cur);
bits.a.b6 = s6(cur);
bits.a.b7 = s7(cur);
}
/* C xor B xor key xor tweak. */
switch (round % 7) {
case 0:
cur.b7 = (0 - (bidx & 1)) ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = (0 - ((tidx >> 9) & 1)) ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = (0 - ((tidx >> 8) & 1)) ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = (0 - ((tidx >> 7) & 1)) ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = (0 - ((tidx >> 6) & 1)) ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = (0 - ((tidx >> 5) & 1)) ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = (0 - ((tidx >> 4) & 1)) ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = (0 - ((tidx >> 3) & 1)) ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 1:
cur.b7 = key_hi[15] ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = key_hi[14] ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = key_hi[13] ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = key_hi[12] ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = key_hi[11] ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = key_hi[10] ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = key_hi[9] ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = key_hi[8] ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 2:
cur.b7 = (0 - ((bidx >> 8) & 1)) ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = (0 - ((bidx >> 7) & 1)) ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = (0 - ((bidx >> 6) & 1)) ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = (0 - ((bidx >> 5) & 1)) ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = (0 - ((bidx >> 4) & 1)) ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = (0 - ((bidx >> 3) & 1)) ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = (0 - ((bidx >> 2) & 1)) ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = (0 - ((bidx >> 1) & 1)) ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 3:
cur.b7 = key_hi[23] ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = key_hi[22] ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = key_hi[21] ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = key_hi[20] ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = key_hi[19] ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = key_hi[18] ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = key_hi[17] ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = key_hi[16] ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 4:
cur.b7 = (0 - ((bidx >> 16) & 1)) ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = (0 - ((bidx >> 15) & 1)) ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = (0 - ((bidx >> 14) & 1)) ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = (0 - ((bidx >> 13) & 1)) ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = (0 - ((bidx >> 12) & 1)) ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = (0 - ((bidx >> 11) & 1)) ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = (0 - ((bidx >> 10) & 1)) ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = (0 - ((bidx >> 9) & 1)) ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 5:
cur.b7 = (0 - ((tidx >> 2) & 1)) ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = (0 - ((tidx >> 1) & 1)) ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = (0 - (tidx & 1)) ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = 0xffff0000 ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = 0xff00ff00 ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = 0xf0f0f0f0 ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = 0xcccccccc ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = 0xaaaaaaaa ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
case 6:
cur.b7 = key_hi[7] ^ tw1_c[tw_off_c + 7] ^ bits.b.b7 ^ bits.c.b7;
cur.b6 = key_hi[6] ^ tw1_c[tw_off_c + 6] ^ bits.b.b6 ^ bits.c.b6;
cur.b5 = key_hi[5] ^ tw1_c[tw_off_c + 5] ^ bits.b.b5 ^ bits.c.b5;
cur.b4 = key_hi[4] ^ tw1_c[tw_off_c + 4] ^ bits.b.b4 ^ bits.c.b4;
cur.b3 = key_hi[3] ^ tw1_c[tw_off_c + 3] ^ bits.b.b3 ^ bits.c.b3;
cur.b2 = key_hi[2] ^ tw1_c[tw_off_c + 2] ^ bits.b.b2 ^ bits.c.b2;
cur.b1 = key_hi[1] ^ tw1_c[tw_off_c + 1] ^ bits.b.b1 ^ bits.c.b1;
cur.b0 = key_hi[0] ^ tw1_c[tw_off_c] ^ bits.b.b0 ^ bits.c.b0;
break;
}
if (last) {
bits.c = cur;
} else {
bits.c.b0 = s0(cur);
bits.c.b1 = s1(cur);
bits.c.b2 = s2(cur);
bits.c.b3 = s3(cur);
bits.c.b4 = s4(cur);
bits.c.b5 = s5(cur);
bits.c.b6 = s6(cur);
bits.c.b7 = s7(cur);
}
/* B xor key xor tweak. */
switch (round % 7) {
case 0:
cur.b7 = (0 - ((tidx >> 2) & 1)) ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = (0 - ((tidx >> 1) & 1)) ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = (0 - (tidx & 1)) ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = 0xffff0000 ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = 0xff00ff00 ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = 0xf0f0f0f0 ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = 0xcccccccc ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = 0xaaaaaaaa ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 1:
cur.b7 = key_hi[7] ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = key_hi[6] ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = key_hi[5] ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = key_hi[4] ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = key_hi[3] ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = key_hi[2] ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = key_hi[1] ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = key_hi[0] ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 2:
cur.b7 = (0 - (bidx & 1)) ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = (0 - ((tidx >> 9) & 1)) ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = (0 - ((tidx >> 8) & 1)) ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = (0 - ((tidx >> 7) & 1)) ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = (0 - ((tidx >> 6) & 1)) ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = (0 - ((tidx >> 5) & 1)) ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = (0 - ((tidx >> 4) & 1)) ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = (0 - ((tidx >> 3) & 1)) ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 3:
cur.b7 = key_hi[15] ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = key_hi[14] ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = key_hi[13] ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = key_hi[12] ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = key_hi[11] ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = key_hi[10] ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = key_hi[9] ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = key_hi[8] ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 4:
cur.b7 = (0 - ((bidx >> 8) & 1)) ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = (0 - ((bidx >> 7) & 1)) ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = (0 - ((bidx >> 6) & 1)) ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = (0 - ((bidx >> 5) & 1)) ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = (0 - ((bidx >> 4) & 1)) ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = (0 - ((bidx >> 3) & 1)) ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = (0 - ((bidx >> 2) & 1)) ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = (0 - ((bidx >> 1) & 1)) ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 5:
cur.b7 = key_hi[23] ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = key_hi[22] ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = key_hi[21] ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = key_hi[20] ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = key_hi[19] ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = key_hi[18] ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = key_hi[17] ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = key_hi[16] ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
case 6:
cur.b7 = (0 - ((bidx >> 16) & 1)) ^ tw1_c[tw_off_b + 7] ^ bits.b.b7;
cur.b6 = (0 - ((bidx >> 15) & 1)) ^ tw1_c[tw_off_b + 6] ^ bits.b.b6;
cur.b5 = (0 - ((bidx >> 14) & 1)) ^ tw1_c[tw_off_b + 5] ^ bits.b.b5;
cur.b4 = (0 - ((bidx >> 13) & 1)) ^ tw1_c[tw_off_b + 4] ^ bits.b.b4;
cur.b3 = (0 - ((bidx >> 12) & 1)) ^ tw1_c[tw_off_b + 3] ^ bits.b.b3;
cur.b2 = (0 - ((bidx >> 11) & 1)) ^ tw1_c[tw_off_b + 2] ^ bits.b.b2;
cur.b1 = (0 - ((bidx >> 10) & 1)) ^ tw1_c[tw_off_b + 1] ^ bits.b.b1;
cur.b0 = (0 - ((bidx >> 9) & 1)) ^ tw1_c[tw_off_b] ^ bits.b.b0;
break;
}
if (last) {
bits.b = cur;
} else {
cur.b0 ^= bits.a.b0 ^ bits.c.b0;
cur.b1 ^= bits.a.b1 ^ bits.c.b1;
cur.b2 ^= bits.a.b2 ^ bits.c.b2;
cur.b3 ^= bits.a.b3 ^ bits.c.b3;
cur.b4 ^= bits.a.b4 ^ bits.c.b4;
cur.b5 ^= bits.a.b5 ^ bits.c.b5;
cur.b6 ^= bits.a.b6 ^ bits.c.b6;
cur.b7 ^= bits.a.b7 ^ bits.c.b7;
bits.b.b0 = s0(cur);
bits.b.b1 = s1(cur);
bits.b.b2 = s2(cur);
bits.b.b3 = s3(cur);
bits.b.b4 = s4(cur);
bits.b.b5 = s5(cur);
bits.b.b6 = s6(cur);
bits.b.b7 = s7(cur);
}
return bits;
}
/* Brute force search for key. The five least significant bytes of matching
keys are placed in ret. */
template<int rounds>
__launch_bounds__(1024, 1)
__global__ void brute_force(int *ret, volatile int off) {
__shared__ int pt[24];
__shared__ int ct[24];
__shared__ int key_12[24];
__shared__ int found[100];
if (threadIdx.x < 24) {
pt[threadIdx.x] = pt1_c[threadIdx.x + off];
ct[threadIdx.x] = ct1_c[threadIdx.x + off];
key_12[threadIdx.x] = key_c[threadIdx.x + off];
found[threadIdx.x] = 0;
}
__syncthreads();
twentyfourbits bits;
bits.a.b7 = pt[23];
bits.a.b6 = pt[22];
bits.a.b5 = pt[21];
bits.a.b4 = pt[20];
bits.a.b3 = pt[19];
bits.a.b2 = pt[18];
bits.a.b1 = pt[17];
bits.a.b0 = pt[16];
bits.b.b7 = pt[15];
bits.b.b6 = pt[14];
bits.b.b5 = pt[13];
bits.b.b4 = pt[12];
bits.b.b3 = pt[11];
bits.b.b2 = pt[10];
bits.b.b1 = pt[9];
bits.b.b0 = pt[8];
bits.c.b7 = pt[7];
bits.c.b6 = pt[6];
bits.c.b5 = pt[5];
bits.c.b4 = pt[4];
bits.c.b3 = pt[3];
bits.c.b2 = pt[2];
bits.c.b1 = pt[1];
bits.c.b0 = pt[0];
#pragma unroll
for (int i = 2; i < rounds; i++) {
bits = encrypt_round<false>(bits, i, &key_12[0]);
}
bits = encrypt_round<true>(bits, rounds, &key_12[0]);
int rr = 0;
rr |= bits.a.b7 ^ ct[23];
rr |= bits.a.b6 ^ ct[22];
rr |= bits.a.b5 ^ ct[21];
rr |= bits.a.b4 ^ ct[20];
rr |= bits.a.b3 ^ ct[19];
rr |= bits.a.b2 ^ ct[18];
rr |= bits.a.b1 ^ ct[17];
rr |= bits.a.b0 ^ ct[16];
rr |= bits.b.b7 ^ ct[15];
rr |= bits.b.b6 ^ ct[14];
rr |= bits.b.b5 ^ ct[13];
rr |= bits.b.b4 ^ ct[12];
rr |= bits.b.b3 ^ ct[11];
rr |= bits.b.b2 ^ ct[10];
rr |= bits.b.b1 ^ ct[9];
rr |= bits.b.b0 ^ ct[8];
rr |= bits.c.b7 ^ ct[7];
rr |= bits.c.b6 ^ ct[6];
rr |= bits.c.b5 ^ ct[5];
rr |= bits.c.b4 ^ ct[4];
rr |= bits.c.b3 ^ ct[3];
rr |= bits.c.b2 ^ ct[2];
rr |= bits.c.b1 ^ ct[1];
rr |= bits.c.b0 ^ ct[0];
/* Put matches in shared memory. */
int ptr;
if (rr != 0xffffffff) {
ptr = atomicAdd_block(found, 1);
found[ptr + 2] = (blockIdx.x << 10) | threadIdx.x;
found[ptr + 3] = rr;
}
__syncthreads();
if (found[0] == 0) {
return;
}
/* Get global memory offset for matches found in block. */
if (threadIdx.x == 0) {
found[1] = atomicAdd(ret, found[0]) * 2 + 1;
}
__syncthreads();
/* Copy matches to global memory. */
if (threadIdx.x < found[0]) {
ptr = found[1] + threadIdx.x * 2;
ret[ptr] = found[(threadIdx.x * 2) + 2];
ret[ptr + 1] = found[(threadIdx.x * 2) + 3];
}
}
__device__ __forceinline__ eightbits sbox(eightbits in) {
eightbits out;
out.b0 = s0(in);
out.b1 = s1(in);
out.b2 = s2(in);
out.b3 = s3(in);
out.b4 = s4(in);
out.b5 = s5(in);
out.b6 = s6(in);
out.b7 = s7(in);
return out;
}
/* Tests candidates found by find_candidates. Used when cracking 6, 7, and 8
rounds. The five least significant bytes of matching keys are placed in ret. */
template <int rounds>
__launch_bounds__(1024, 1)
__global__ void test_candidates(int *in, int *out, int num_candidates, int offset) {
int ptr = ((blockIdx.x << 7) | (threadIdx.x >> 3));
if (ptr >= num_candidates) {
return;
}
volatile __shared__ int pt1[24];
volatile __shared__ int ct1[24];
volatile __shared__ int tw1[64];
volatile __shared__ int key_12[16];
volatile __shared__ int k3456[1024];
__shared__ int found[1024];
__shared__ eightbits aa[1024];
if (threadIdx.x < 16) {
key_12[threadIdx.x] = key_c[threadIdx.x + offset * 16];
}
if (threadIdx.x < 24) {
pt1[threadIdx.x] = pt1_c[threadIdx.x + offset * 24];
ct1[threadIdx.x] = ct1_c[threadIdx.x + offset * 24];
}
if (threadIdx.x < 64) {
tw1[threadIdx.x] = tw1_c[threadIdx.x + offset * 64];
}
__syncthreads();
k3456[threadIdx.x] = in[ptr + 1];
eightbits bb, cc;
/* Round 1. */
bb.b0 = pt1[8];
bb.b1 = pt1[9];
bb.b2 = pt1[10];
bb.b3 = pt1[11];
bb.b4 = pt1[12];
bb.b5 = pt1[13];
bb.b6 = pt1[14];
bb.b7 = pt1[15];
aa[threadIdx.x].b0 = pt1[16] ^ bb.b0 ^ key_12[8] ^ tw1[56];
aa[threadIdx.x].b1 = pt1[17] ^ bb.b1 ^ key_12[9] ^ tw1[57];
aa[threadIdx.x].b2 = pt1[18] ^ bb.b2 ^ key_12[10] ^ tw1[58];
aa[threadIdx.x].b3 = pt1[19] ^ bb.b3 ^ key_12[11] ^ tw1[59];
aa[threadIdx.x].b4 = pt1[20] ^ bb.b4 ^ key_12[12] ^ tw1[60];
aa[threadIdx.x].b5 = pt1[21] ^ bb.b5 ^ key_12[13] ^ tw1[61];
aa[threadIdx.x].b6 = pt1[22] ^ bb.b6 ^ key_12[14] ^ tw1[62];
aa[threadIdx.x].b7 = pt1[23] ^ bb.b7 ^ key_12[15] ^ tw1[63];
aa[threadIdx.x] = sbox(aa[threadIdx.x]);
cc.b0 = pt1[0] ^ bb.b0 ^ key_12[0] ^ tw1[48];
cc.b1 = pt1[1] ^ bb.b1 ^ key_12[1] ^ tw1[49];
cc.b2 = pt1[2] ^ bb.b2 ^ key_12[2] ^ tw1[50];
cc.b3 = pt1[3] ^ bb.b3 ^ key_12[3] ^ tw1[51];
cc.b4 = pt1[4] ^ bb.b4 ^ key_12[4] ^ tw1[52];
cc.b5 = pt1[5] ^ bb.b5 ^ key_12[5] ^ tw1[53];
cc.b6 = pt1[6] ^ bb.b6 ^ key_12[6] ^ tw1[54];
cc.b7 = pt1[7] ^ bb.b7 ^ key_12[7] ^ tw1[55];
cc = sbox(cc);
bb.b0 ^= aa[threadIdx.x].b0 ^ cc.b0 ^ (0 - ((k3456[threadIdx.x] >> 24) & 1)) ^ tw1[40];
bb.b1 ^= aa[threadIdx.x].b1 ^ cc.b1 ^ (0 - ((k3456[threadIdx.x] >> 25) & 1)) ^ tw1[41];
bb.b2 ^= aa[threadIdx.x].b2 ^ cc.b2 ^ (0 - ((k3456[threadIdx.x] >> 26) & 1)) ^ tw1[42];
bb.b3 ^= aa[threadIdx.x].b3 ^ cc.b3 ^ (0 - ((k3456[threadIdx.x] >> 27) & 1)) ^ tw1[43];
bb.b4 ^= aa[threadIdx.x].b4 ^ cc.b4 ^ (0 - ((k3456[threadIdx.x] >> 28) & 1)) ^ tw1[44];
bb.b5 ^= aa[threadIdx.x].b5 ^ cc.b5 ^ (0 - ((k3456[threadIdx.x] >> 29) & 1)) ^ tw1[45];
bb.b6 ^= aa[threadIdx.x].b6 ^ cc.b6 ^ (0 - ((k3456[threadIdx.x] >> 30) & 1)) ^ tw1[46];
bb.b7 ^= aa[threadIdx.x].b7 ^ cc.b7 ^ (0 - ((k3456[threadIdx.x] >> 31) & 1)) ^ tw1[47];
bb = sbox(bb);
/* Round 2. */
aa[threadIdx.x].b0 ^= bb.b0 ^ (0 - ((k3456[threadIdx.x] >> 16) & 1)) ^ tw1[32];
aa[threadIdx.x].b1 ^= bb.b1 ^ (0 - ((k3456[threadIdx.x] >> 17) & 1)) ^ tw1[33];
aa[threadIdx.x].b2 ^= bb.b2 ^ (0 - ((k3456[threadIdx.x] >> 18) & 1)) ^ tw1[34];
aa[threadIdx.x].b3 ^= bb.b3 ^ (0 - ((k3456[threadIdx.x] >> 19) & 1)) ^ tw1[35];
aa[threadIdx.x].b4 ^= bb.b4 ^ (0 - ((k3456[threadIdx.x] >> 20) & 1)) ^ tw1[36];
aa[threadIdx.x].b5 ^= bb.b5 ^ (0 - ((k3456[threadIdx.x] >> 21) & 1)) ^ tw1[37];
aa[threadIdx.x].b6 ^= bb.b6 ^ (0 - ((k3456[threadIdx.x] >> 22) & 1)) ^ tw1[38];
aa[threadIdx.x].b7 ^= bb.b7 ^ (0 - ((k3456[threadIdx.x] >> 23) & 1)) ^ tw1[39];
aa[threadIdx.x] = sbox(aa[threadIdx.x]);
cc.b0 ^= bb.b0 ^ (0 - ((k3456[threadIdx.x] >> 8) & 1)) ^ tw1[24];
cc.b1 ^= bb.b1 ^ (0 - ((k3456[threadIdx.x] >> 9) & 1)) ^ tw1[25];
cc.b2 ^= bb.b2 ^ (0 - ((k3456[threadIdx.x] >> 10) & 1)) ^ tw1[26];
cc.b3 ^= bb.b3 ^ (0 - ((k3456[threadIdx.x] >> 11) & 1)) ^ tw1[27];
cc.b4 ^= bb.b4 ^ (0 - ((k3456[threadIdx.x] >> 12) & 1)) ^ tw1[28];
cc.b5 ^= bb.b5 ^ (0 - ((k3456[threadIdx.x] >> 13) & 1)) ^ tw1[29];
cc.b6 ^= bb.b6 ^ (0 - ((k3456[threadIdx.x] >> 14) & 1)) ^ tw1[30];
cc.b7 ^= bb.b7 ^ (0 - ((k3456[threadIdx.x] >> 15) & 1)) ^ tw1[31];
cc = sbox(cc);
bb.b0 ^= aa[threadIdx.x].b0 ^ cc.b0 ^ (0 - ((k3456[threadIdx.x] >> 0) & 1)) ^ tw1[16];
bb.b1 ^= aa[threadIdx.x].b1 ^ cc.b1 ^ (0 - ((k3456[threadIdx.x] >> 1) & 1)) ^ tw1[17];
bb.b2 ^= aa[threadIdx.x].b2 ^ cc.b2 ^ (0 - ((k3456[threadIdx.x] >> 2) & 1)) ^ tw1[18];
bb.b3 ^= aa[threadIdx.x].b3 ^ cc.b3 ^ (0 - ((k3456[threadIdx.x] >> 3) & 1)) ^ tw1[19];
bb.b4 ^= aa[threadIdx.x].b4 ^ cc.b4 ^ (0 - ((k3456[threadIdx.x] >> 4) & 1)) ^ tw1[20];
bb.b5 ^= aa[threadIdx.x].b5 ^ cc.b5 ^ (0 - ((k3456[threadIdx.x] >> 5) & 1)) ^ tw1[21];
bb.b6 ^= aa[threadIdx.x].b6 ^ cc.b6 ^ (0 - ((k3456[threadIdx.x] >> 6) & 1)) ^ tw1[22];
bb.b7 ^= aa[threadIdx.x].b7 ^ cc.b7 ^ (0 - ((k3456[threadIdx.x] >> 7) & 1)) ^ tw1[23];
bb = sbox(bb);
/* Round 3. */
aa[threadIdx.x].b0 ^= bb.b0 ^ 0xaaaaaaaa ^ tw1[8];
aa[threadIdx.x].b1 ^= bb.b1 ^ 0xcccccccc ^ tw1[9];
aa[threadIdx.x].b2 ^= bb.b2 ^ 0xf0f0f0f0 ^ tw1[10];
aa[threadIdx.x].b3 ^= bb.b3 ^ 0xff00ff00 ^ tw1[11];
aa[threadIdx.x].b4 ^= bb.b4 ^ 0xffff0000 ^ tw1[12];
aa[threadIdx.x].b5 ^= bb.b5 ^ (0 - (threadIdx.x & 1)) ^ tw1[13];
aa[threadIdx.x].b6 ^= bb.b6 ^ (0 - ((threadIdx.x >> 1) & 1)) ^ tw1[14];
aa[threadIdx.x].b7 ^= bb.b7 ^ (0 - ((threadIdx.x >> 2) & 1)) ^ tw1[15];
aa[threadIdx.x] = sbox(aa[threadIdx.x]);
cc.b0 ^= bb.b0 ^ key_12[8] ^ tw1[0];
cc.b1 ^= bb.b1 ^ key_12[9] ^ tw1[1];
cc.b2 ^= bb.b2 ^ key_12[10] ^ tw1[2];
cc.b3 ^= bb.b3 ^ key_12[11] ^ tw1[3];
cc.b4 ^= bb.b4 ^ key_12[12] ^ tw1[4];
cc.b5 ^= bb.b5 ^ key_12[13] ^ tw1[5];
cc.b6 ^= bb.b6 ^ key_12[14] ^ tw1[6];
cc.b7 ^= bb.b7 ^ key_12[15] ^ tw1[7];
cc = sbox(cc);
bb.b0 ^= aa[threadIdx.x].b0 ^ cc.b0 ^ key_12[0] ^ tw1[56];
bb.b1 ^= aa[threadIdx.x].b1 ^ cc.b1 ^ key_12[1] ^ tw1[57];
bb.b2 ^= aa[threadIdx.x].b2 ^ cc.b2 ^ key_12[2] ^ tw1[58];
bb.b3 ^= aa[threadIdx.x].b3 ^ cc.b3 ^ key_12[3] ^ tw1[59];
bb.b4 ^= aa[threadIdx.x].b4 ^ cc.b4 ^ key_12[4] ^ tw1[60];
bb.b5 ^= aa[threadIdx.x].b5 ^ cc.b5 ^ key_12[5] ^ tw1[61];
bb.b6 ^= aa[threadIdx.x].b6 ^ cc.b6 ^ key_12[6] ^ tw1[62];
bb.b7 ^= aa[threadIdx.x].b7 ^ cc.b7 ^ key_12[7] ^ tw1[63];
bb = sbox(bb);
/* Round 4. */
aa[threadIdx.x].b0 ^= bb.b0 ^ (0 - ((k3456[threadIdx.x] >> 24) & 1)) ^ tw1[48];
aa[threadIdx.x].b1 ^= bb.b1 ^ (0 - ((k3456[threadIdx.x] >> 25) & 1)) ^ tw1[49];
aa[threadIdx.x].b2 ^= bb.b2 ^ (0 - ((k3456[threadIdx.x] >> 26) & 1)) ^ tw1[50];
aa[threadIdx.x].b3 ^= bb.b3 ^ (0 - ((k3456[threadIdx.x] >> 27) & 1)) ^ tw1[51];
aa[threadIdx.x].b4 ^= bb.b4 ^ (0 - ((k3456[threadIdx.x] >> 28) & 1)) ^ tw1[52];
aa[threadIdx.x].b5 ^= bb.b5 ^ (0 - ((k3456[threadIdx.x] >> 29) & 1)) ^ tw1[53];
aa[threadIdx.x].b6 ^= bb.b6 ^ (0 - ((k3456[threadIdx.x] >> 30) & 1)) ^ tw1[54];
aa[threadIdx.x].b7 ^= bb.b7 ^ (0 - ((k3456[threadIdx.x] >> 31) & 1)) ^ tw1[55];
aa[threadIdx.x] = sbox(aa[threadIdx.x]);
cc.b0 ^= bb.b0 ^ (0 - ((k3456[threadIdx.x] >> 16) & 1)) ^ tw1[40];
cc.b1 ^= bb.b1 ^ (0 - ((k3456[threadIdx.x] >> 17) & 1)) ^ tw1[41];
cc.b2 ^= bb.b2 ^ (0 - ((k3456[threadIdx.x] >> 18) & 1)) ^ tw1[42];
cc.b3 ^= bb.b3 ^ (0 - ((k3456[threadIdx.x] >> 19) & 1)) ^ tw1[43];
cc.b4 ^= bb.b4 ^ (0 - ((k3456[threadIdx.x] >> 20) & 1)) ^ tw1[44];
cc.b5 ^= bb.b5 ^ (0 - ((k3456[threadIdx.x] >> 21) & 1)) ^ tw1[45];
cc.b6 ^= bb.b6 ^ (0 - ((k3456[threadIdx.x] >> 22) & 1)) ^ tw1[46];
cc.b7 ^= bb.b7 ^ (0 - ((k3456[threadIdx.x] >> 23) & 1)) ^ tw1[47];
cc = sbox(cc);
bb.b0 ^= aa[threadIdx.x].b0 ^ cc.b0 ^ (0 - ((k3456[threadIdx.x] >> 8) & 1)) ^ tw1[32];
bb.b1 ^= aa[threadIdx.x].b1 ^ cc.b1 ^ (0 - ((k3456[threadIdx.x] >> 9) & 1)) ^ tw1[33];
bb.b2 ^= aa[threadIdx.x].b2 ^ cc.b2 ^ (0 - ((k3456[threadIdx.x] >> 10) & 1)) ^ tw1[34];
bb.b3 ^= aa[threadIdx.x].b3 ^ cc.b3 ^ (0 - ((k3456[threadIdx.x] >> 11) & 1)) ^ tw1[35];
bb.b4 ^= aa[threadIdx.x].b4 ^ cc.b4 ^ (0 - ((k3456[threadIdx.x] >> 12) & 1)) ^ tw1[36];
bb.b5 ^= aa[threadIdx.x].b5 ^ cc.b5 ^ (0 - ((k3456[threadIdx.x] >> 13) & 1)) ^ tw1[37];
bb.b6 ^= aa[threadIdx.x].b6 ^ cc.b6 ^ (0 - ((k3456[threadIdx.x] >> 14) & 1)) ^ tw1[38];
bb.b7 ^= aa[threadIdx.x].b7 ^ cc.b7 ^ (0 - ((k3456[threadIdx.x] >> 15) & 1)) ^ tw1[39];
bb = sbox(bb);
/* Round 5. */
aa[threadIdx.x].b0 ^= bb.b0 ^ (0 - ((k3456[threadIdx.x] >> 0) & 1)) ^ tw1[24];
aa[threadIdx.x].b1 ^= bb.b1 ^ (0 - ((k3456[threadIdx.x] >> 1) & 1)) ^ tw1[25];
aa[threadIdx.x].b2 ^= bb.b2 ^ (0 - ((k3456[threadIdx.x] >> 2) & 1)) ^ tw1[26];
aa[threadIdx.x].b3 ^= bb.b3 ^ (0 - ((k3456[threadIdx.x] >> 3) & 1)) ^ tw1[27];
aa[threadIdx.x].b4 ^= bb.b4 ^ (0 - ((k3456[threadIdx.x] >> 4) & 1)) ^ tw1[28];
aa[threadIdx.x].b5 ^= bb.b5 ^ (0 - ((k3456[threadIdx.x] >> 5) & 1)) ^ tw1[29];
aa[threadIdx.x].b6 ^= bb.b6 ^ (0 - ((k3456[threadIdx.x] >> 6) & 1)) ^ tw1[30];
aa[threadIdx.x].b7 ^= bb.b7 ^ (0 - ((k3456[threadIdx.x] >> 7) & 1)) ^ tw1[31];
aa[threadIdx.x] = sbox(aa[threadIdx.x]);
cc.b0 ^= bb.b0 ^ 0xaaaaaaaa ^ tw1[16];
cc.b1 ^= bb.b1 ^ 0xcccccccc ^ tw1[17];
cc.b2 ^= bb.b2 ^ 0xf0f0f0f0 ^ tw1[18];
cc.b3 ^= bb.b3 ^ 0xff00ff00 ^ tw1[19];
cc.b4 ^= bb.b4 ^ 0xffff0000 ^ tw1[20];
cc.b5 ^= bb.b5 ^ (0 - (threadIdx.x & 1)) ^ tw1[21];
cc.b6 ^= bb.b6 ^ (0 - ((threadIdx.x >> 1) & 1)) ^ tw1[22];
cc.b7 ^= bb.b7 ^ (0 - ((threadIdx.x >> 2) & 1)) ^ tw1[23];
cc = sbox(cc);
bb.b0 ^= aa[threadIdx.x].b0 ^ cc.b0 ^ key_12[8] ^ tw1[8];
bb.b1 ^= aa[threadIdx.x].b1 ^ cc.b1 ^ key_12[9] ^ tw1[9];
bb.b2 ^= aa[threadIdx.x].b2 ^ cc.b2 ^ key_12[10] ^ tw1[10];
bb.b3 ^= aa[threadIdx.x].b3 ^ cc.b3 ^ key_12[11] ^ tw1[11];
bb.b4 ^= aa[threadIdx.x].b4 ^ cc.b4 ^ key_12[12] ^ tw1[12];
bb.b5 ^= aa[threadIdx.x].b5 ^ cc.b5 ^ key_12[13] ^ tw1[13];
bb.b6 ^= aa[threadIdx.x].b6 ^ cc.b6 ^ key_12[14] ^ tw1[14];
bb.b7 ^= aa[threadIdx.x].b7 ^ cc.b7 ^ key_12[15] ^ tw1[15];
bb = sbox(bb);
/* Round 6. */
aa[threadIdx.x].b0 ^= bb.b0 ^ key_12[0] ^ tw1[0];
aa[threadIdx.x].b1 ^= bb.b1 ^ key_12[1] ^ tw1[1];
aa[threadIdx.x].b2 ^= bb.b2 ^ key_12[2] ^ tw1[2];