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The University Public Key Infrastructure (UPKI) project in Japan is developing a national academic inter-institution authentication and authorization infrastructure based on the Public Key Infrastructure (PKI), and it is carrying out a feasibility study on SAML 2.0 federation by building a Shibboleth2.x test-bed called UPKI-Fed with about thirty university participants. Federation usually provides...
Open source software is proved to be very useful in saving time and cost in building software of complex functions. Security is not an exception of this trend. A problem in securityware is the guarantee of its quality on security. In this paper, we analyze 2008 Debian incident on OpenSSL. The vulnerability on pseudo-random number generation is identified apart from the announcement of Debian. Furthermore,...
We propose a new method of the recommender agent that supports to make clear the preference of a user. First, an overview of our coarse to fine recommendation system and the experimental results are described. Next we will discuss the effectiveness of our system. We interpret the meaning of our fixed recommendation strategy of the agent for contributing to restrain to prevent the user from his awareness...
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