Abstract. Hummingbird-2 is an encryption algorithm with a 128-bit secret key and a 64-bit initialization vector. Hummingbird-2 optionally produces an authentication tag for each message processed. Like it's predecessor Hummingbird-1, Hummingbird-2 has been targeted for low-end microcontrollers and for hardware implementation in lightweight devices such as RFID tags and wireless sensors. Compared to the previous version of the cipher, and in response to extensive analysis, the internal state has been increased to 128 bits and a flow of entropy from the state to the mixing function has been improved. In this paper we present the Hummingbird-2 algorithm, its design and security arguments, performance analysis on both software and hardware platforms, and timing analysis in relation to the ISO 18000-6C protocol.

Public and academic discourses about the Polar regions typically focus on the so-called natural environment. While, these discourses and inquiries continue to be relevant, the current article asks the question how to conceptualize the on-going industrial and infrastructural build-up of the Arctic. Acknowledging that the “built environment” is not an invention of modernity, the article nevertheless focuses on large-scale infrastructural projects of the twentieth century, which marks a watershed of industrial and infrastructural development in the north. Given that the Soviet Union was at the vanguard of these developments, the focus will be on Soviet and Russian large-scale projects. We will be discussing two cases of transportation infrastructure, one of them based on an on-going research project being conducted by the authors along the Baikal–Amur Mainline (BAM) and the other focused on the so-called Northern Sea Route, the marine passage with a long history that has recently been regaining public and academic attention. The concluding section will argue for increased attention to the interactions between humans and the built environment, serving as a kind of programmatic call for more anthropological attention to infrastructure in the Russian north and other polar regions.

ABSTRACT. Over the last 100 years, there have been major changes in the way Iñupiaq villages in Alaska have procured fresh water for drinking and other human uses. Since the 1960s, major funding has been provided by local, state, and federal agencies to install centralized water systems in these villages. These systems have arrived with great expectations, and yet many of them have a myriad of problems due to harsh weather conditions, low winter temperatures, and permafrost. Other obstacles to success of the water systems arise from local preference for traditional water resources. On the Seward Peninsula, some villages rely heavily on centralized water systems, while others continue to rely more heavily on traditional water sources. We demonstrate in this paper that local variables, including different environmental factors and a sense of agency in the modernization process, affect local choices about whether or not to use the centralized water systems. We conclude that local, culturally specific ideas about health and acceptable drinking water quality must be taken into account for these projects to be successful.Key words: freshwater, centralized water systems, water technology, Alaska, Iñupiaq, localization, technoscape, globalization, adaptation RÉSUMÉ. Ces cent dernières années, la façon dont les villages iñupiaqs, en Alaska, se sont procuré l'eau douce nécessaire à la consommation et à d'autres usages humains a changé considérablement. Depuis les années 1960, des organismes fédéraux, locaux et d'État ont consacré beaucoup de financement à l'installation de réseaux centralisés d'alimentation en eau dans ces villages. Bien que les attentes étaient grandes à l'égard de ces réseaux, grand nombre d'entre eux ont connu une myriade de problèmes attribuables aux conditions climatiques difficiles de l'hiver, aux basses températures hivernales et au pergélisol. Parmi les autres obstacles à l'implantation réussie des réseaux d'alimentation en eau, notons la préférence qu'ont les gens de la région pour les sources d'eau traditionnelles. Dans la péninsule de Seward, certains villages dépendent fortement de réseaux centralisés d'alimentation en eau, tandis que d'autres villages continuent de dépendre surtout de sources d'eau traditionnelles. Nous démontrons dans cette communication que les variables locales, ce qui comprend divers facteurs environnementaux et la présence d'organismes se vouant au processus de modernisation, ont des incidences sur les choix faits dans la région, à savoir si les peuples décident de recourir aux réseaux centralisés d'alimentation en eau ou non. Nous en concluons que pour que ces projets réussissent, il faut tenir compte des idées des gens de la région en matière de culture, plus précisément en ce qui a trait à la santé et à une qualité acceptable d'eau potable.

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