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Vendor kkiernan Package caesar-cipher Short Description Encrypt, decrypt and crack messages using the simple Caesar Cipher algorithm. License
MIT
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A basic Caesar Cipher class in PHP for fun and learning.
Installation
Instantiation
Available Methods
Encrypt
Decrypt
Crack
Security
Installation
Install the package using Composer.
Instantiation
Create a new CaesarCipher instance. Make sure to import the class or use the fully qualified class name.
Available Methods
Encrypt
To encrypt a message, pass the CaesarCipher instance some plaintext and a key. In a Caesar Cipher, the key is just the number of places to shift each letter in the plaintext.
Decrypt
To decrypt a ciphertext, use the decrypt method on the CaesarCipher instance. Pass in the ciphertext and the key that was used to encrypt the message.
Crack
You can attempt to crack an encrypted message by using the crack method, which will return a best guess for the key's value. Use the key to retrieve the plaintext.
Security
This was written for fun and learning very basic encryption techniques (like substitution in this case). Obviously Caesar Cipher is not a secure encryption algorithm (only 25 possible keys), so don't use this for anything sensitive. It's really a toy meant for fun.
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