Download Higher-Order Algebra, Logic, and Term Rewriting: First by Andrea Asperti, Cosimo Laneve (auth.), Jan Heering, Karl PDF

By Andrea Asperti, Cosimo Laneve (auth.), Jan Heering, Karl Meinke, Bernhard Möller, Tobias Nipkow (eds.)

This quantity comprises the ultimate revised types of the simplest papers awarded on the First overseas Workshop on Higher-Order Algebra, good judgment, and time period Rewriting (HOA '93), held in Amsterdam in September 1993. Higher-Order tools are more and more utilized in sensible and good judgment programming languages, in addition to in specification and verification of courses and undefined. The 15 complete papers during this quantity are dedicated to the algebra and version conception of higher-order languages, computational common sense options together with answer and time period rewriting, and specification and verification case reports; in overall they supply a appropriately written evaluate of present study and recommend new learn instructions during this vigourous area.

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Read or Download Higher-Order Algebra, Logic, and Term Rewriting: First International Workshop, HOA'93 Amsterdam, The Netherlands, September 23–24, 1993 Selected Papers PDF

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Extra info for Higher-Order Algebra, Logic, and Term Rewriting: First International Workshop, HOA'93 Amsterdam, The Netherlands, September 23–24, 1993 Selected Papers

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According to [12] AOL uses RSA Security’s SecurID hardware token. In order to log in, users have to type in a 6-digit-Code displayed by the token and changed every minute, in addition to their regular password. – A one-time-password token provided by Kobil Systems does not change the passwords periodically but on user request. Every time the user needs a password he has to push a button on the token [13]. – A third method is used by the Swedish SEB-bank. It uses a token-based challenge-response-system [14].

The Anti-Phishing Working Group (APWG), an association of financial institutions, internet service providers, online-retailers, and other it-companies, is collecting information on Phishing incidents. The collected data is published in the monthly Phishing Activity Trends Report, which clearly shows the dramatical increase in Phishing attacks during the last few months (see Fig. 1). Another study conducted by Gartner showed that 57 million US citizens have already been victims of a Phishing attack.

Pn must set some parameters. They choose a large prime p so that p = 2q + 1 and q is also prime; they also pick one element g ∈ Z∗p of order q. Using the key generation protocol described in [6], players jointly generate a public key y = ni=1 yi . Each player Pi keeps her corresponding share αi of the private key and publishes yi = g αi . 2 Deck Generation Each card is represented by a value jointly computed by all players in Protocol 1. We first explain what Protocol 1 does and then describe the protocol in detail.

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