I'm trying to write an IM client which sends encrypted messages to the server. I tried to use pycrypto library, but when I came to 3DES cypher I was confused about the keysize to use. In the standard it said that it should be either 112 bits or 168 bits, whereas it's 16 bytes or 24 bytes in pycrypto. If I use 16 bytes key to encrypt and send this key to the server which is expecting a 112 bits key, there'll be a problem. How I should solve this?
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