Computation :: Data Encryption

cambridge_encode(str)
Returns the given string with the central letters of each word scrambled and the first and last letters of each word left as-is.
rc4(str,key)
Returns the given string encrypted/decrypted with the RC4 algorithm using the given key.
rot13(str)
Returns the given text encrypted/decrypted with the rot13 algorithm.
vigenere_ascii(in,key,mode)
Returns the given string enciphered or deciphered using a simple Vigenere style cipher, and filtering out non-printable characters.
vigenere_cipher(in,key,mode)
Returns the given string enciphered or deciphered using a Vigenere style cipher.