This project is a simple tool for encrypting and decrypting text using the Caesar Cipher. The Caesar Cipher is a basic encryption technique where each letter in the plaintext is shifted a certain number of places down or up the alphabet.
- Encryption: Shifts each letter in the text by a user-defined shift value.
- Decryption: Reverses the encryption by shifting letters back by the same shift value.
- Handles both uppercase and lowercase letters.
- A C compiler (e.g.,
gcc)
-
Compile the Program: Use a C compiler like
gccto compile the program.gcc -o caesar_cipher caesar_cipher.c
-
Run the Program: Execute the compiled binary.
./caesar_cipher
-
Follow the Prompts:
- Enter the text: Input the text you want to encrypt or decrypt.
- Enter the shift value: Provide a shift value between 0 and 25.
- Choose an option:
- Enter
1to encrypt the text. - Enter
2to decrypt the text.
- Enter
Enter the text to encrypt/decrypt: Hello, World!
Enter the shift value (0-25): 3
Choose an option:
1. Encrypt
2. Decrypt
Enter your choice: 1
Encrypted text: Khoor, Zruog!
Enter the text to encrypt/decrypt: Khoor, Zruog!
Enter the shift value (0-25): 3
Choose an option:
1. Encrypt
2. Decrypt
Enter your choice: 2
Decrypted text: Hello, World!
- Encryption Function: Shifts each letter by the specified number of positions.
- Decryption Function: Reverses the encryption by shifting each letter back by the specified number of positions.
- Handling of Characters: The program ensures that letters wrap around the alphabet and maintains case sensitivity.
- Only works with alphabetic characters; non-alphabetic characters are not altered.
- The shift value must be between 0 and 25.
This project is licensed under the MIT License. See the LICENSE file for more details.
Contributions are welcome! If you have suggestions or improvements, please submit a pull request or open an issue.
For any questions or feedback, you can reach out to gaurityagi7524@gmail.com.
Made with 🤍💖!!