Operation Rubicon: Germany as an intelligence 'Great Power'?

Operation Rubicon was probably one of the most successful intelligence operations of our time. Recent press revelations detail this secret partnership between the German Bundesnachrichtendienst (BND) and the American Central Intelligence Agency (CIA), focused on the purchase and control of Crypto AG. Supported by German technical giants like Siemens, the company sold and produced compromised cypher machines. This article challenges the idea that the dominant sigint powers were within the anglosphere during the Cold War. Instead suggesting Rubicon evidences that the centre of gravity for intelligence lay ‘elsewhere’. It also explores the complex ethical implications of Germany’s involvement in Rubicon

Stream ciphers for secure display

In any situation where private, proprietary or highly confidential material is being dealt with, the need to consider aspects of data security has grown ever more important. It is usual to secure such data from its source, over networks and on to the intended recipient. However, data security considerations typically stop at the recipient's processor, leaving connections to a display transmitting raw data which is increasingly in a digital format and of value to an adversary. With a progression to wireless display technologies the prominence of this vulnerability is set to rise, making the implementation of 'secure display' increasingly desirable. Secure display takes aspects of data security right to the display panel itself, potentially minimising the cost, component count and thickness of the final product. Recent developments in display technologies should help make this integration possible. However, the processing of large quantities of time-sensitive data presents a significant challenge in such resource constrained environments. Efficient high- throughput decryption is a crucial aspect of the implementation of secure display and one for which the widely used and well understood block cipher may not be best suited. Stream ciphers present a promising alternative and a number of strong candidate algorithms potentially offer the hardware speed and efficiency required. In the past, similar stream ciphers have suffered from algorithmic vulnerabilities. Although these new-generation designs have done much to respond to this concern, the relatively short 80-bit key lengths of some proposed hardware candidates, when combined with ever-advancing computational power, leads to the thesis identifying exhaustive search of key space as a potential attack vector. To determine the value of protection afforded by such short key lengths a unique hardware key search engine for stream ciphers is developed that makes use of an appropriate data element to improve search efficiency. The simulations from this system indicate that the proposed key lengths may be insufficient for applications where data is of long-term or high value. It is suggested that for the concept of secure display to be accepted, a longer key length should be used

Mythos Enigma

Die Entschlüsselung der deutschen Chiffriermaschine »Enigma« durch die Briten gehört zu den bestgehüteten Geheimnissen des Zweiten Weltkrieges - erst 1974 wurde die Öffentlichkeit über die erfolgreichen Bemühungen informiert. Seither ist das Interesse an der »Enigma« bei Laien und Fachwelt ungebrochen. »Mythos Enigma« geht dieser Faszination in einer Feldstudie nach und nimmt die Spuren der Maschine nicht nur in Deutschland, England und in den USA, sondern auch in der Schweiz auf: Dass die geheimnisvolle Maschine aus Deutschland auch in diesem neutralen Land benutzt wurde, war bisher kaum bekannt. Die Motive von Wissenschaftlern, Sammlern und Zeitzeugen mögen unterschiedlich sein, ihre Bemühungen kommen aber auf eine geheimnisvolle Art am Schluss wieder zusammen. Ähnliches lässt sich von fiktionaler Literatur und Filmen sagen, die das Thema aufgreifen. Die Faszination von »Enigma« (lat. »Geheimnis«) ist eine Chiffre für unseren Umgang mit dem Geheimen