链接：https://pan.baidu.com/s/135XhpGPAF4_DACuSryQrbA 
提取码：f0ra 

 1 int __cdecl main(int argc, const char **argv, const char **envp)
 2 {
 3   char *v3; // rsi@1
 4   __int64 v4; // rax@8
 5   signed int i; // [sp+2Ch] [bp-124h]@2
 6   char v7[264]; // [sp+40h] [bp-110h]@1
 7   __int64 v8; // [sp+148h] [bp-8h]@1
 8 
 9   v8 = *(_QWORD *)__stack_chk_guard_ptr;
10   memset(v7, 0, 0x100uLL);
11   v3 = (char *)256;
12   printf("Input your flag:\n", 0LL);
13   get_line(v7, 256LL);
14   if ( strlen(v7) != 33 )
15     goto LABEL_13;
16   for ( i = 1; i < 33; ++i )
17     v7[i] ^= v7[i - 1];
18   v3 = global;
19   if ( !strncmp(v7, global, 0x21uLL) )
20     printf("Success", v3);
21   else
22 LABEL_13:
23     printf("Failed", v3);
24   v4 = *(_QWORD *)__stack_chk_guard_ptr;
25   if ( *(_QWORD *)__stack_chk_guard_ptr == v8 )
26     LODWORD(v4) = 0;
27   return v4;
28 }

 1 str = [
 2     0x66, 0x0A, 0x6B, 0x0C, 0x77, 0x26, 0x4F, 0x2E, 0x40, 0x11, 
 3     0x78, 0x0D, 0x5A, 0x3B, 0x55, 0x11, 0x70, 0x19, 0x46, 0x1F, 
 4     0x76, 0x22, 0x4D, 0x23, 0x44, 0x0E, 0x67, 0x06, 0x68, 0x0F, 
 5     0x47, 0x32, 0x4F, 0x00]  #str：数组
 6 flag = chr(str[0])
 7 i = 1
 8 while True:
 9     if i<len(str):
10        flag +=chr(str[i]  ^ str[i-1])
11        i +=1
12     else:
13         break
14 print(flag)

flag{QianQiuWanDai_YiTongJiangHu}