06.11.2010 13:58, Geoff Worboys wrote:

> Dimitry Sibiryakov wrote:
>> Do you consider these points to be good? From this point
>> of view, encryption on client side is an absolute winner
>> as it solves all problems at once: network, memory, swap,
>> hibernate, sort and storage are protected automatically. You
>> just have to find encryption function which comply one rule:
>> for every x1< x2, f(x1)< f(x2) must be also true.
>
> I am not aware of any encryption that will satisfy your rule
> and still provide good security.

In this topic we seemed to agree that "good security" is impossible and some level of
obscurity may be enough. In this case you can choose between, say, base64, uuencode, ROT
or Caesar (if I remembered name for variable ROT right) algorithms.

--
SY, SD.