phoenixangel
Leecher
10

It's no rijndeal that is asymetric, RSA is, rijndeal is symetric

The client asks the server for it's key and then encrypts data with it. This data is the client's Rijndael key, only the server can decrypt the Rijndael key with it's 1 private key. At this point secure bi-directional is possible where both sides use the client's Rijndael key.

[Ruby] SIN-source - Pastebin.com <- source

Hey I just read your message: Bigger files crash the program since the program does not send the file in chunks (and allocating 3gb of memory is never going to work )

Next, I don't use RSA because it's somehow stronger or better then Rijndael, I use it because RSA is an asymmetric key system where the keys of Rijndael are symmetric. This means that the keys to decrypt and encrypt data are totally different in RSA, while in Rijndael you have two identical keys to encrypt and decrypt. With asymmetric keys it's possible to send secure messages over insecure media (like the Internet). It basically works like this:

The Server has 2 RSA keys 1 is known to everyone and 1 is only known to the server, this key is a 'public' key.
The Client has 1 Rijndael key and 1 RSA key (the same key as the server holds )