Caesar Cipher Tool
Encrypt or decrypt messages using the simple Caesar cipher shift.
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How the Caesar Cipher Works
The Caesar cipher is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 3, 'A' would be replaced by 'D', 'B' would become 'E', and so on.
- Enter Your Text: Type the message you want to transform into the input box.
- Select a Shift: Use the slider to choose a shift value between 1 and 25.
- Encrypt or Decrypt: Click "Encrypt" to apply the shift or "Decrypt" to reverse it. The tool only transforms letters, preserving spaces, numbers, and punctuation.
Frequently Asked Questions (FAQ)
Q: Is the Caesar cipher secure?
A: No, it is not secure at all. Because there are only 25 possible shifts, it can be broken very easily through brute-force or frequency analysis. It is primarily used for educational purposes or simple puzzles.
Q: What is a ROT13 cipher?
A: ROT13 is a special case of the Caesar cipher where the shift is 13. The same function can be used for both encrypting and decrypting the text.
Related Keywords
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