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摘要


In this paper a new, efficient public key cryptosystem is presented. This system is based on some special behaviors of powers of 2 and matrices. This is a practical method. The introduced public key cryptosystem is very simple. But, difficult to find the sending message in easily. There are two public keys and two private keys in this new cryptosystem. Therefore two ciphertexts and two plaintexts are in the cryptosystem. A new modulus is introduced for encryption and decryption process and it is very familiar to computer science. In this method we hide the message in a matrix. This situation makes a difficult puzzle for adversaries.

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