20211014gfsj_re_refor50plz50

这道题要安装IDA插件retdec才可反编译

int main(int argc, char ** argv) {int32_t v1 = 0;// branch -> 0x4013c8while (true) {char v2 = *(char *)(v1 + (int32_t)"cbtcqLUBChERV[[Nh@_X^D]X_YPV[CJ"); // 0x4013d8char v3 = *(char *)(*(int32_t *)((int32_t)argv + 4) + v1); // 0x4013f0if ((int32_t)v2 != ((int32_t)v3 ^ 55)) {// 0x401408print((int32_t)"NOOOOOOOOOOOOOOOOOO\n");exit_funct();// branch -> 0x401428}int32_t v4 = v1 + 1; // 0x40142cif (v4 >= 31) {// break -> 0x401444break;}v1 = v4;// continue -> 0x4013c8}// 0x401444exit_funct();return 1;
}

exp

#include<stdio.h>
#include<string.h>
int main()
{char a[] = "cbtcqLUBChERV[[Nh@_X^D]X_YPV[CJ";int b[32];int i;int v3;for (i = 0; i < strlen(a); i++)b[i] = (int)a[i] ^ 55;for (i = 0;i < strlen(a);i++)printf("%c", b[i]);}

20211014gfsj_re_refor50plz50

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