We describe a lattice attack on DSA-like signature schemes under the assumption that implicit information on the ephemeral keys is known. Inspired by the implicit oracle of May and Ritzenhofen presented in the context of RSA (PKC2009), we assume that the ephemeral keys share a certain amount of bits without knowing the value of the shared bits. This work also extends results of Leadbitter, Page...

this is a commentary on gilbert and colleagues’ (1) paper on morality and markets in the national health service (nhs). morality and values are not ephemeral qualities and universal healthcare is not simply an aspiration; it has to be enshrined in law. the creation of the uk nhs in 1948 was underpinned by core legal duties which required a system of public funding and delivery to follow. the mo...

Abstract The need for hydrologic restoration is well established in stream ecosystems across the world; however, available funding catchment-scale typically falls far short of what required to produce in-stream results. Hydrologic can be particularly important improving integrity urban watersheds, but implementation challenging due high property values and limited space retroactive stormwater c...

In an object oriented, distributed environment, program maintenance, which has never been the most predictable task, becomes even more uncertain. Java’s dynamic loading mechanism was developed to tackle some of the uncertainties. In doing so, it shifts the focus from the state of the sources to that of the binaries. This paper discusses some of the implications of that move.

This paper sketches the challenges to address to realise a support able to achieve an Ephemeral Cloud Federation, an innovative cloud computing paradigm that enables the exploitation of a dynamic, personalised and context-aware set of resources. The aim of the Ephemeral Federation is to answer to the need of combining private data-centres with both federation of cloud providers and the resource...

Ephemeral highlighting uses the temporal dimension to draw the user's attention to specific interface elements through a combination of abrupt onset and gradual fade-in. This technique has shown promise in adaptive interfaces, but has not been tested as a dynamic visual encoding to support information visualization. We conducted a study with 32 participants using subgraph highlighting to suppor...

In wireless ad-hoc broadcast networks the pairing problem consists of establishing a (long-term) connection between two specific physical nodes in the network that do not yet know each other. We focus on the ephemeral version of this problem. Ephemeral pairings occur, for example, when electronic business cards are exchanged between two people that meet, or when one pays at a check-out using a ...

In an object oriented, distributed environment, program maintenance, which has never been the most predictable task, becomes even more uncertain. Java’s dynamic loading mechanism was developed to tackle some of the uncertainties. In doing so, it shifts the focus from the state of the sources to that of the binaries. This paper discusses some of the implications of that move.