Learn cryptography by experimenting with different classical ciphers. Encrypt your message. Decrypt it. Visualize every shift using an Interactive Cipher Wheel.
Start EncryptingCipher Lab is an interactive environment where you can learn and experiment with classical cryptography techniques. Instead of simply reading theory, you can type a message, select a cipher, choose a key and instantly see how encryption and decryption work. The Interactive Cipher Wheel visually demonstrates how letters are transformed, making cryptography easier to understand.
Convert Plain Text into Cipher Text using different algorithms.
Recover the original message using the correct key.
Watch every alphabet rotate live according to the selected key.
Study the history, working and applications of every cipher.
Select a cipher technique to begin encryption.
Shift every letter by a fixed key.
Special Caesar Cipher with key = 13.
Reverse Alphabet Substitution.
Keyword based encryption.
Move the slider to rotate the cipher wheel. The inner wheel shifts according to the selected key.
0 characters
Enter your message.
Choose a key between 0 and 25.
The inner wheel rotates automatically.
Each letter shifts by the selected key and generates the encrypted message.
Total Characters
Letters
Words
Encryption Key
Cipher Used
The Caesar Cipher is one of the oldest encryption techniques. It shifts every letter in the plaintext by a fixed number of positions in the alphabet. Julius Caesar used this method to securely communicate with his military officers.
The Caesar Cipher is one of the oldest encryption techniques. It was developed by Julius Caesar around 58 BC to securely communicate with his military commanders. Each letter of the plaintext is shifted by a fixed number of positions in the alphabet.
Ancient India used secret communication methods described in Kautilya's Arthashastra. Spy networks, coded messages, and secret symbols were used to protect military and political information. These ideas inspired many modern cybersecurity concepts.
Today's digital world uses advanced encryption methods such as AES, RSA, ECC, and SHA hashing. These techniques secure banking, messaging apps, cloud storage, and online transactions.
Protects confidential information from unauthorized users.
Allows safe communication over public networks.
Keeps personal and business data confidential.
Used in banking, military, hospitals, messaging apps, and e-commerce.
| Cipher | Key | Security | Difficulty |
|---|---|---|---|
| Caesar | Single Shift | Low | Easy |
| ROT13 | 13 | Low | Easy |
| Atbash | No Key | Low | Easy |
| Vigenère | Keyword | Medium | Medium |
| Playfair | Keyword | Medium | Medium |
Plain text is the original readable message before encryption.
Cipher text is the encrypted unreadable message generated after encryption.
A key determines how letters are shifted or transformed during encryption and decryption.
Yes. Since it has only 26 possible shifts, it is easy to break using brute-force attacks. It is mainly used today for learning purposes.