For Cryptanalysts Only The transmitting agency uses a different mode of encipherment for each of its receiver, and that's one hock of a weakness, for on the same day, at approximately the same time, your agents in Erewhon, Ecalpon, and Wohon, have intercepted three different cipher-texts, which you suspect (correctly) all overlie the same short plain-text message.

In May 2006 a cryptanalyst/forensic examiner from the CRRU explained the complex encipherment process to a federal jury in Southern California.

Russian Dimitry Sklyarov wrote a program to crack Adobe's eBook encipherment, allowing users to move eBooks from one machine to another, and enabling blind consumers to hear the books read out loud.