COMPUTING CALCULATOR
Caesar Cipher Shifter
A precise tool.
What is the Caesar Cipher Shifter & How does it work?
The Caesar Cipher is a simple encryption technique where each letter in the plaintext is shifted a certain number of places down the alphabet.
For example, with a shift of 1, A would be replaced by B, B would become C, and so on. The method is named after Julius Caesar, who reportedly used it to communicate with his generals.
C = (P + K) mod 26
C = Cipher text
P = Plain text
K = Shift key
P = Plain text
K = Shift key
Parameters
Result
—
Frequently Asked Questions
How does the Caesar Cipher work?
The Caesar Cipher shifts each letter in the plaintext a fixed number of positions down the alphabet. For example, with a shift of 1, A becomes B.
What is the formula for the Caesar Cipher?
The formula is C = (P + K) mod 26, where C is the cipher text, P is the plain text, and K is the shift key.
Can I use this calculator to decrypt messages?
Yes, you can use it to decrypt messages by entering a negative shift value that corresponds to the original encryption shift.
What if my message includes spaces or punctuation?
Spaces and punctuation are not shifted. They remain unchanged in the encrypted or decrypted message.
Is this calculator case-sensitive?
No, the calculator treats uppercase and lowercase letters as equivalent and shifts them accordingly.
What is the maximum shift value I can use?
The maximum shift value is 25. A shift of 26 would return the original text unchanged.
Can this calculator handle non-English alphabets?
This calculator is designed for the English alphabet (A-Z) and does not support other languages or characters.
Results are for informational purposes only and do not constitute professional advice.