But you can't encrypt/decrypt with hash functions!

Oh yes I fucking can you anus-mouthed niggerian jew. I can trivially push this shit into counter mode and \(Ciphertext_{counter} = H(key \| nonce \| counter) \oplus Plaintext_{counter}\)

_{Use your favourite MAC construction instead of H!}

>>18
hey FV I don't have time to cryptanalyze those functions right now but have you made sure that those are actually cryptographically strong? you know, you can use any RNG as a stream cipher but it will usually result in a shitty cipher (e.g. the attacker being able to recover key/RNG state/plaintext)