记RE出题

最新推荐文章于 2025-12-17 15:36:40 发布

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最新推荐文章于 2025-12-17 15:36:40 发布 · 226 阅读

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CC 4.0 BY-SA版权

文章标签：

#python #开发语言 #笔记 #经验分享 #汇编

title：记RE出题

反编译

pyc反编译，运行python代码得到flag

#!/usr/bin/python
# -*- coding: UTF-8 -*-

def print_hi(name):

    print(f'Oh_{
     
     name}')
if __name__ == '__main__':
    print_hi('RE_is_f5n')

密码表

考察阅读代码的能力
python代码：

#!/bin/bash/python
buf=[]
v14=[]
v10="9F!R9k!w3U!tM88W90d"
v7="9517384206"
v20="MNBVCXZASDFGHIJKLPOIUYQWERT"
v15="qeadzcwsxryfhvntgbmlkjuiop"

for i in range(0,19):
    v14.append(v10[i])

for i in range(0,19):
    if(v14[i]=='!'):
        buf.append(95)
    for j in range(0,len(v15)):
        if(v14[i]==v15[j]):
            buf.append(j+65)
            continue
    for j in range(0,len(v20)):
        if(v14[i]==v20[j]):
            buf.append(j+97)
            continue
    for j in range(0,len(v7)):
        if(v14[i]==v7[j]):
            buf.append(j+48)
            continue
str=""
for i in buf:
    str+=chr(i)
print(str)

C语言代码：

#include <stdio.h>  
#include <string.h>  
  
int main() {
   
     
    char buf[100];  
    char v14[20];  
    char v10[] = "9F!R9k!w3U!tM88W90d";  
    char v7[] = "9517384206";  
    char v20[] = "MNBVCXZASDFGHIJKLPOIUYQWERT";  
    char v15[] = "qeadzcwsxryfhvntgbmlkjuiop";  
      
    for(int i = 0; i < 19; i++) {
   
     
        v14[i] = v10[i];  
    }  
    v14[19] = '\0'; // 字符串以'\0'结尾  
  
    for(int i = 0; i < 19; i++) {
   
     
        if(v14[i] == '!') {
   
     
            buf[i] = 95;  
        } else {
   
     
            for(int j = 0; j < strlen(v15); j++) {
   
     
                if(v14[i] == v15[j]) {
   
     
                    buf[i] = j + 65;  
                    break;  
                }  
            }