On Wed, Sep 25, 2013 at 9:29 PM, brian carroll <electromagnetize@gmail.com> wrote:
... no- not for a multilinear/nonlinear bit set approach. voluminous data exchange...
you're wrong. the key is to re-key so frequently there is never a significant volume transferred under the same symmetric key. in the manually keyed IPsec experiment i mentioned in another thread, we used synchronized key daemons to maintain a rolling pair of SA/AH+ESP associations that rotated on a per second interval. as long as you didn't transfer more than some obtuse number of terabits in a given second the assurance provided by a random key is intact. (and we used VIA C5P dual RNG processors to provide the manual keying material that was kept in sync between a pair of communicating stations over unencrypted 802.11b - there was no IKE or other public key exchange, just synchronized symmetric ciphers and digests)