A New Secure Cryptography Algorithm Based on Symmetric Key Encryption
Mohammad Dehghani Soltani · 2013
In the digital world, which is currently evolving and changing at such a rapid pace, the security of digital information has become increasingly more important. Great development of secret contact and communication in the world, the necessity of communication security is becoming more and more significant. Cryptography has specific role to protect secret files like secret documents from unauthorized access. Cryptography algorithms are classified in to two types, Public-key producing and symmetric-key producing algorithms. In this paper, I suggested a new robust cryptography algorithm to increase security in the Symmetric-key producing algorithm. The main features of cryptography algorithm defined in this article are the ability to encrypt the secret file in successive stages, changing the physical structure of the secret file, no limitation for the number of keys, Creating five keys at each stage of cryptography, storing a part of secret file at one of the keys at each stage of cryptography, Interdependence of all keys in all stages of encrypting and decrypting, To make the keys interdependent and to encrypt the secret file by each of them, there are 2 independent algorithms to select the type of algorithm needed to make the keys interdependent by the user, bigger changes in the physical structure of the encrypted file In case of wrong decryption and to make the resulting keys and encrypted file unique after the cryptography process.