BugkuCTF-游戏过关

两种方法：

ida打开，一直找到最后的函数打开，发现是运算，还有个输出，猜测这就是flag的输出，拿出来写个脚本运行

a = []
file = open('a.txt','r');
for lines in file:
	line = lines.strip(";\n").split("=")[1].strip()
	a.append(int(line))
b = []
file = open('b.txt','r');
for lines in file:
	line = lines.strip(";\n").split("=")[1].strip()
	b.append(int(line))
s=""
for index in range(len(a)):
	s+=(chr(a[index]^b[index]^0x13))
print(s)

得到flag：zsctf{T9is_tOpic_1s_v5ry_int7resting_b6t_others_are_n0t}