Picoctf 2023 Readmycert

Download the CSR file and use either a website CSR decoder or the base64 command to view the flag embedded within it.

Using a base64 decoder to read a PEM (Privacy Enhanced Mail) certificate! ==== Social Media ==== Discord: ...

PicoCTF

00:00 Intro 00:20 What is a CSR? 01:00 Showing how browsers use certs 03:25 Creating a CSR 04:50 Examining the challenge ...

Uses an "imp gate" to defeat the imp in every battle in Core Wars https://www.corewars.org/docs/book1.html.

Solve Cryptography: Task 152:

Use Wireshark to open the PCAP file. In one of the ethernet packets is the first portion of the flag, base64 encoded. Using that first ...

Learning about regular expressions in this web exploitation challenge! Mentorship, Resume Reviews and LinkedIn Profile ...

Use Ghidra to reverse engineer a binary file. The game allows you to move off the top-left corner of the screen, which writes ...

In this picoGym (

Shows a small CoreWars program that crashes immediately by executing a DAT instruction. More info on CoreWars at: ...

cd to the root folder, use ls to find the challenges folder, then cd and cat the file to obtain the flag. NOTE! This was an unintended ...

Authors first encrypted the flag with the atbash cipher. Then they used the steghide steganography tool (with no password) to ...

In this video we learn about Core Wars, a programming game where "warriors" try to destroy each other in a simulated computer ...

Display the contents of a file with echo command.

Used scared and estraces to perform power analysis on AES with chosen plaintexts to extract the key.

There is a regular expression in the source code of the website: "^p.....F!?" - any string that matches the regular expression gives ...

Grab a Corewars warrior from Corewars for Dummies (http://www.koth.org/info/corewars_for_dummies/dummies.html) and submit ...