Roman Empire
π Details
| Attribute | Details |
|---|---|
| Challenge Name | Roman Empire |
| Category | Cryptography |
| Difficulty | π’ Easy |
| Flag | F4H{caesarCiph**********} |
π Description
In ancient times, secrets were protected using simple yet clever methods. Retrieve the secret from the file.
π₯ Download mystery_data.txt
𧩠Hints
- Caesar cipher is what you are looking for.
π‘ Solution
Name and challenge descrition should guide you to use a Caesar cipher to decrypt the text. The shift is not given, but it can be found by brute-forcing the text. One possible approach is to use following online tool (opens in a new tab).
π Insights
Even without picking up on the hints from the challenge name or description, you can recognize a Caesar cipher as a type of substitution cipher. In this classic encryption method, each letter in the plaintext is shifted by a fixed number of positions in the alphabet. For example, with a shift of 3, A becomes D, B becomes E, and so on.
Caesar ciphers are easy to spot due to the consistent pattern in letter frequency and position shifts, making them one of the simplest forms of encryption to break β especially with modern tools or basic scripts.