Sites

Cipher Identifier, Hash Identifier

https://www.dcode.fr/rot-13-cipher

https://www.dcode.fr/vigenere-cipher

https://www.guballa.de/vigenere-solver

https://www.dcode.fr/caesar-cipher

check eso langs

Challenges

My friend protected his secret file with a strong system :( ! I need your help, my math skills are bad.

https://drive.google.com/file/d/1gp9DVY06x7B7Ub8iWJFcKljqXdP8sKMS/view?usp=sharing

Unprintable/Zero-width/Hidden

https://www.diffchecker.com/

https://offdev.net/demos/zwsp-steg-js

Enigma

import os

import string

alphabet = list(string.ascii_uppercase)

f=open('output.txt', 'r')

f=f.readlines()

for i in range(0, 25):

inp=[]

isSymbol = 0

for line in f:

if not line[i].isalpha():

isSymbol = 1

print(line[i], end ="")

break

inp.append(line[i])

if isSymbol == 0:

for check in alphabet:

if not check in inp:

print(check, end ="")

break

Binary decode

python

int("binary",2)

hex(int("binary",2))

hex(int("binary",2))[2:-1]

hex(int("binary",2))[2,-1].decode('hex')

Quick RSA Basics

Video Source: gunnhacks CTF | CTF for beginners | Rahul Singh