TWCTF 2017 - BabyDLP, BabyRSA, 3Rev

I had sometime at the weekend to play this CTF. One of my favorites CTF, good crypto challenges. BabyDLP # Python 3 from signal import alarm from Crypto.Util.number import * p = 160634950613302858781995506902938412625377360249559915379491492274326359260806831823821711441204122060415286351711411013883400510041411782176467940678464161205204391247137…

[ASISCTF QUAL 2017] Crows knows

ASIS is my favorite CTF, and my solution is a roller coaster. Crows knows Let’s start with this exciting challenge: [+] Opening connection to 146.185.143.84 on port 13245: Done ************************************************************** | Welcome to the Crow Impossible Task, crow knows the flag!! | | Your mission is to find x, y…

[0CTF] One Time Pad by Z3

This challenge can be solved by two ways, mathematically or using SMT Solver Intially, I want to remind you that there is a blog post written carefully how to solve it in mathematical way. So please read it first. One Time Pad 1 Now let take a look at the…

Download music using Scrapy Python

Because manual download or wget, curl are so mainstream. Let’s do something different. A music page From Hacker’s News, I was introduced to this page, for short, it’s a kind of music which help people concentrate on what they are doing. I love them,…