In numerous modern stream ciphers, the internal state consists of a large array of pseudo-random words, and the output key-stream is a relatively simple function of the state. In [16], it was heuristically shown that in various cases this structure may lead to distinguishing attacks on the cipher. In this paper we further investigate this structural attack. We present a rigorous proof of the ma...

Writing the grammar of a language is one of the most significant outputs of linguistic studies. In Iran, it is Avicenna (Ibn-e Sina) who is credited with the first such compilation of the Persian language. Understanding the weaknesses associated with the traditional trends of grammar writing in Iran, contemporary Iranian linguists adopted the modern Western approach following the Chomskyan Turn...

Nowadays Information and Communications Technology (ICT) is becoming not only enormously popular but also increasingly important in our lives and education system. Generally, learners are usually eager to work on computers or with various kinds of modern technology. This research was carried out to find out whether using weblogs is effective in Iranian EFL learners’ vocabulary and writing skill...

narration is a cognitive tool to understand the experience flow and the theses of analysis of stream of consciousness is considered as one of the most recent and popular methods of analyses of literary works. in the stream of consciousness method, for a detailed and momentum description, the content of thought has a central function and appears in the form of narrative tips and techniques like ...