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Ding et al [DNRS97] propose a stream generator based on several layers. We present several attacks. First, we observe that the non-surjectivity of a linear combination step allows us to recover half the key with minimal effort. Next, we show that the various bytes are insufficiently mixed by these layers, enabling an attack similar to those on two-loop Vigenere ciphers to recover the remainder ...

sadegh choobak is one of the outstanding authors and novelists in the modem persian literature. he was also under the intellectual influence of hedayat and american authors. he is one of the most realistic iranian novelists. his works may be classified in two different periods. his first works are more well - known and have unique characteristics. his description of the phenomena of every day l...