The EuroPKI Experience

A Universal Client-Based Identity Management Tool

A wide variety of identity management systems have been introduced to improve the security and usability of user authentication; however, password-based authentication remains the dominant technology despite its well known shortcomings. In this paper we describe a client-based identity management tool we call IDSpace, designed to address this problem by providing a single user interface and use...

Fast Point Decompression for Standard Elliptic Curves

Interoperation Between a Conventional PKI and an ID-Based Infrastructure

In this paper we consider how practical interoperation between a conventional PKI and an infrastructure based on ID-based cryptography might be achieved. Major issues arising from such interoperation are raised, and possible solutions are proposed.

Block-level Accountability for Transparent Sanitizable Signatures

The paradigm of treating security properties on the blocklevel in sanitizable signature schemes was introduced by Brzuska et al. at EuroPKI ’12. In this paper we extend their work in two respects: First, we provide a new construction which retains transparency, a stronger privacy property. In particular, we formalize the property of block-level accountability for sanitizable signatures with tra...

XKMS Working Group Interoperability Status Report

The XMLKey Management Specification (XKMS) is a World Wide Web Consortium (W3C) Candidate Recommendation. Current work on XKMS aims to demonstrate interoperability in order to progress the specification along the W3C standards track. This paper describes the state of that work and discusses some of the issues which have arisen during the course of the work.