"nemo_outis" <abc@xyz.com> wrote in
news:Xns9D80E0E913D77pqwertyu@69.16.185.250:



As I said in the "truecrypt access claimed?" thread on
alt.security.scramdisk on May 22:


....
> (Aside: What would be ideal is if we could magically work
> on data while it was still encrypted. Somewhat
> surprisingly, it was recently proved that it is
> theoretically possible to do this. However, the abstract
> proof involves an unbelievably complicated and slow process
> that is completely impractical even on the fastest
> supercomputer. But still, perhaps one day.)
....


Well, there's been another signficant step towards this. Here's
Smart's paper adding on to Gentry's original work:

Fully Homomorphic Encryption with Relatively
Small Key and Ciphertext Sizes
http://www.info.unicaen.fr/M2-AMI/ar...2010/smart.pdf

For those who find the paper tough sledding, here's an
assessment in layman's terms:

Major step ahead for cryptography
http://www.eurekalert.org/pub_releas...-msa052510.php

Regards,