Compression filter is only useful when you start transferring lots of data to balanced the fact that it take a substantial amount of time to compress / decompress. For small message the time taken for compressing uncompressing is counterbalanced by the actual time it takes to transmit the data. One solution for your problem is going for XML encryption ( check the XML-SEC from apache project ) , but you still need to solve the problem of key exchange. And the computational cost is not trivial on PDA and other. So far most of PDA don't really use encryption unless they have dedicated hardware to offload it.
-----Original Message----- From: Aleksandar [mailto:[EMAIL PROTECTED] Sent: 31 August 2006 15:22 To: [email protected] Subject: Re: encryption I though about compression filter, but the server must be available from different platforms including PDA and other widgets and I do not know is it reasonable. I mostly transfer data in following format: short int float float Size is 2 + 4 + 4 + 4 = 14 bytes. Thouse bytes must be encrypted with cipher that is available on different platforms and probably in different languages.
