KeePass or any other password wallet to store and transport keys

[Johan Wevers]

On 23-07-2012 3:16, Robert J. Hansen wrote:

> Far more likely is a situation where you just don't meet your goals.
> For instance, if you encrypt data once with a DES key and then encrypt
> it again with a different DES key, you might think this would be 'two
> layers' of crypto.  In reality, there is always a third DES key which
> will be equivalent to encrypting with the first followed by encrypting
> with the second -- it's the real-world analogue of the "ROT3 followed by
> ROT5 is just ROT8" example I gave.

That would be true if DES was a group, which it is not. That's why 3DES
is more secure than single DES.

-- 
ir. J.C.A. Wevers
PGP/GPG public keys at http://www.xs4all.nl/~johanw/pgpkeys.html