https://pan.baidu.com/s/1kVssDb5

TIPS：

提取密码：assm

1.xor

2.hex2binary

3.len(bin(miwen))==len(bin(mingwen))

题解： 

工具：010Editor

使用010Editor打开两个文件 , 转换成二进制模式

明文：

01101100 01101111 01110110 01100101 01101100 01101111 01110110 01100101
01101100 01101111 01110110 01100101 01101100 01101111 01110110 01100101
01101100 01101111 01110110 01100101 01101100 01101111 01110110 01100101
01101100 01101111 01110110 01100101 01101100 01101111 01110110 01100101

密文：

00001010 00000011 00010111 00000010 01010110 00000001 00010101 00010001
00001010 00010100 00001110 00001010 00011110 00110000 00001110 00001010
00011110 00110000 00001110 00001010 00011110 00110000 00010100 00001100
00011001 00001101 00011111 00010000 00001110 00000110 00000011 00011000

XOR处理

01100110 01101100 01100001 01100111 00111010 01101110 01100011 01110100 
01100110 01111011 01111000 01101111 01110010 01011111 01111000 01101111
01110010 01011111 01111000 01101111 01110010 01011111 01100010 01101001 
01110101 01100010 01101001 01110101 01100010 01101001 01110101 01111101

XOR处理源程序

C++版本

int main(){
    char a[] = "0000101000000011000101110000001001010110000000010001010100010001000010100001010000001110000010100001111000110000000011100000101000011110001100000000111000001010000111100011000000010100000011000001100100001101000111110001000000001110000001100000001100011000";
    char b[] = "0110110001101111011101100110010101101100011011110111011001100101011011000110111101110110011001010110110001101111011101100110010101101100011011110111011001100101011011000110111101110110011001010110110001101111011101100110010101101100011011110111011001100101";
    for(int i=0;i<256;i++){
        printf("%d",a[i]^b[i]);
    }
}

Python版本

a = '0000101000000011000101110000001001010110000000010001010100010001000010100001010000001110000010100001111000110000000011100000101000011110001100000000111000001010000111100011000000010100000011000001100100001101000111110001000000001110000001100000001100011000'
b = '0110110001101111011101100110010101101100011011110111011001100101011011000110111101110110011001010110110001101111011101100110010101101100011011110111011001100101011011000110111101110110011001010110110001101111011101100110010101101100011011110111011001100101'
for i in range(len(a)):
    if(a[i] == b[i]):
        print '0',
    else:
        print '1',

打开010Editor , 创建一个新的Hex文件 , 粘贴为二进制数据 

flag 

flag:nctf{xor_xor_xor_biubiubiu}