Imagine code distributed over a network of computers over the world that lives & that when its time dependent conversation is interrupted - dies! Consider three sets of code in three computers that constitutes a "Family"(the whole program). "Grandpa" talks to "Pa". "Pa" then talks "Son". "Son" then talks to "Grandpa". Each "Family" member closely monitors its cup clock & if its expected message is not received on time - it suicides! Capture "Pa" & in seconds, "Grandpa" & "Son" take their own lives! That is to say, they scramble certain essential parts of themselves including cryptographic sections. The expected messages contain ciphertext that is generated by an RSA/Idea scheme that changes its key at every transmission. The "Family" would be glued together tightly by clocks & changing keys. The whole "Family" together would constitute a single program whose purpose & output could not be found without analyzing the whole "Family". An impossible to determine ( for the outsider ) member would generate the output. The output member would change. A resultant of this process is that the system could not be analyzed in its entirety. An attack to shutdown the set of computers would have to be nearly simultaneously. Another trick could be use to stop a simultaneous shutdown - greatly increase the size of the "Family". An essential trick to defeat analysis is to have essential parts of the "Family" members encrypted at times, so that there was no single time in which the whole "Family" was in plaintext. Variations on this scheme come to mind. For instance, the route of transmission varies & is impossible to determine by an outside invest- igator. Another variation: redundancy could be built into the scheme so that the loss of a computer or two wouldn't shutdown the program. Each member could be given a CRC by its calling member at each transmission to check for tampering. The CRC would only be for selected sections of the member. In order to make individual implementations practical, the "Family" could be generated by a computer program so that less drudge work would be done by humans. What purposes would this scheme be applied to? To be sure purposes that would get a hostile response. The reader can think up his own. This programming scheme's major virtue is that it cannot be captured wholly intact. The "Family" that "Clocks", "Keys", & "Crypts" together - "lives" together. Yours Truly, Gary Jeffers PUSH EM BACK! PUSH EM BACK! WWWAAAYYY BBBAAACCCKKKK! BBBEEEAAATTTT STATE!