Basic functions of a MIX
{"Image DocumentName": "Basic functions of a MIX", "Image ImageDescription": "input messages. MIX. discard repeats. min max. 1 HDD. access. 10 ms 50 ms. do nothing test. 0 ms dig. sig. 100 ms. asym. encr. asym. encr. special HW SW. 1 ms 100 ms. 1 ns 10 s. 11, ,01. ms ms. buffer current input batch. all input messages which were or will be re-encrypted using the same key. sufficiently many messages. from sufficiently many senders? If needed: insert dummy messages. basic functions: 1. get input. 2. discard messages \uf0e0 use time stamps, database, key change! -> same input same output! if key changes: no problem! store only part of message (sym key) 3. check number of senders (how to do in Internet: nPA!) -> if not enough: wait or generate dummy. 4. reorder! times: outdated! but still: asym crypto rules! next slide: concequences. re-encrypt (decrypt or encrypt) change order. output messages.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}