Why would you argue that your library is secure? Since it seems to be based on RC4, what is done to protect against the known weaknesses of RC4? (And why did you pick RC4 as a base, despite it&#x27;s known weaknesses, especially at the start of the cipherstream?)<p>Your &quot;initialisation_vector&quot; is simply derived from system time, not exported (so how is anyone supposed to use it decrypt?) and not even properly used as far as I can tell.