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14.14.3 Stream Ciphers

Currently the only stream cipher in the toolkit is the RC4 cipher (also known as "arcfour").

CLASS
Crypto.rc4

METHOD
Crypto.rc4.crypt

SYNTAX
string Crypto.rc4->crypt(string data);

DESCRIPTION
Encrypts or decrypts a string of data.

METHOD
Crypto.rc4.set_encrypt_key

SYNTAX
object Crypto.rc4->set_encrypt_key(string key);

DESCRIPTION
Installs a key, and configures the object for doing encryption. For convenience, this method returns the object itself.

METHOD
Crypto.rc4.set_decrypt_key

SYNTAX
object Crypto.rc4->set_decrypt_key(string key);

DESCRIPTION
Installs a key, and configures the object for doing decryption. For convenience, this method returns the object itself.
Because of the way RC4 works, set_encrypt_key and set_decrypt_key are actually equivalent.
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