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Vaudenay's cryptanalysis to Chor-Rivest cryptosystem is not applicable if the parameters p and h of the finite field are both prime integers. This case is analyzed below and the parameters for which such cryptosys-tem is cryptographically interesting are listed. Regrettably the resulting cryptosystems are not very efficient in practice.
Front. ICT 2:27. In recent years, the University of Salamanca together with other 45 European universities have changed our university qualifications, resulting in substantial changes in the system of education. In this case study, we detail the particular case of the subject of Design and Calculation of Machines of the Degree in Mechanical Engineering,… (More)
—Digital signature, as an official signature, have many applications in information security, including authenti-cation, data integrity, and non-repudiation. When a private or public document must be signed by a group of people, we call it multisignature scheme if all and every single member of the group signs the document. An identity-based digital… (More)