Sicalxy

# -*- coding: UTF-8 -*-
import requests
import json


token = {'token': '21f7e4a349d69bbab5dc20c2647b3880'}
books = [
         ['jvm',
          '11120486',
          '07871edf-06a8-4bd1-a8d8-aa2317a099c7_1'],

Sicalxy

def ext_euclid(a, b):
    if b == 0:
        return 1, 0, a
    else:
        x, y, q = ext_euclid(b, a % b)
        x, y = y, (x - (a // b) * y)
        return x, y, q

def inverse(a, n):
    x, y, q = ext_euclid(a, n)

Sicalxy

BugKu Writeup

Crypto

Sicalxy

jefferson_origin = ['ZWAXJGDLUBVIQHKYPNTCRMOSFE',
                    'KPBELNACZDTRXMJQOYHGVSFUWI',
                    'BDMAIZVRNSJUWFHTEQGYXPLOCK',
                    'RPLNDVHGFCUKTEBSXQYIZMJWAO',
                    'IHFRLABEUOTSGJVDKCPMNZQWXY',
                    'AMKGHIWPNYCJBFZDRUSLOQXVET',
                    'GWTHSPYBXIZULVKMRAFDCEONJQ',
                    'NOZUTWDCVRJLXKISEFAPMYGHBQ',
                    'QWATDSRFHENYVUBMCOIKZGJXPL',
                    'WABMCXPLTDSRJQZGOIKFHENYVU',

Sicalxy

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-

'''
	https://ctf.bugku.com/challenges#%E4%B8%80%E6%AE%B5Base64
'''

import base64
import html
from urllib import parse

Sicalxy

int gcdEx(int a, int b, int *x, int *y) 
{
    if(0 == b)
    {
        *x = 1;
        *y = 0;
        return a;
    }
    else
    {