Now, ssh firstname.lastname@example.org
The password is R****N.
- Level Info:
Substitution ciphers are a simple replacement algorithm. In this example of a substitution cipher, we will explore a ‘monoalphebetic’ cipher. Monoalphebetic means, literally, “one alphabet” and you will see why.
This level contains an old form of cipher called a ‘Caesar Cipher’. A Caesar cipher shifts the alphabet by a set number. For example:
plain: a b c d e f g h i j k … cipher: G H I J K L M N O P Q …
In this example, the letter ‘a’ in plaintext is replaced by a ‘G’ in the ciphertext so, for example, the plaintext ‘bad’ becomes ‘HGJ’ in ciphertext.
The password for level 3 is in the file krypton3. It is in 5 letter group ciphertext. It is encrypted with a Caesar Cipher. Without any further information, this cipher text may be difficult to break. You do not have direct access to the key, however you do have access to a program that will encrypt anything you wish to give it using the key. If you think logically, this is completely easy.
One shot can solve it!
Alrite! Question seems to be a bit long. So we need to perform caesar shift to get the password.
The file Krypton3 contains the encrypted password: OMQEMDUEQMEK
Use the code https://sowmyaravidas.wordpress.com/2012/09/15/encryption-code-for-caesar-cipher/ here
with proper indentation to decrypt it. This helps you generate all the possibilities:
You got the password for next level!!