help to convert c++ fonction in python

[Steven D'Aprano]

On Sat, 17 Oct 2009 19:48:46 -0400, geremy condra wrote:

> For the love of baby kittens, please, please, please tell me that you do
> not believe this securely encrypts your data.

Surely that depends on your threat model?

If you think that the NSA is interested in your data, then no, obviously 
they'll break it in probably minutes.

If you're using it to obfuscate (say) dialog strings in a game, so that 
game players can't trivially open the data files in an editor and read 
ahead, then this may be enough security against your threat model, so the 
answer may be "Yes". But that depends on the game -- if there is real 
money involved, then probably "No".

"Secure" is not a binary state. It's always "secure against what?". You 
might have the latest, most powerful encryption software, but what are 
you going to do if the authorities hit your hand with a hammer until you 
give up the passphrase? (Figuratively or literally.) If you live in a 
country where this is a risk, then your threat model is different and 
AES, 3DES or other standard cryptosystems won't make you any more secure 
than rot13.



-- 
Steven