[PYTHON-CRYPTO] amkCrypto: Cipher decrypt(string) output

Jason R. Mastaler jason-list-python-crypto at MASTALER.COM
Thu Mar 29 00:33:43 CEST 2001


Andrew Archibald <aarchiba at YAHOO.COM> writes:

> 3DES also requires re-keying.  The difference is that Blowfish has a
> very expensive key schedule --- something like 5k of subkeys need to
> be set up, which involves doing many Blowfish encryptions, every
> time you create a new state.  (This needs to be done when you change
> the key, but it's an API limitation that requires you to do it when
> you want to reset, eg, the cipher state).  So re-keying 3DES will be
> quicker, and 3DES is more secure, having had many many years of
> essentially unsuccessful cryptanalysis.

Triple DES' fixed key-size rules it out for what I am working on.
Is there a "second best" cipher you would recommend then?

Thanks.





More information about the python-crypto mailing list