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A Cellular Automaton is one of the most engrossing fields of studies. At the present digital world where almost every communication is being done via internet, requirement of security and privacy of information is must. For securing big or small data over internet, cryptographic techniques are essential. Usage of cellular automata characteristics in the field of cryptography is still not much explored...
In earlier multi-receiver signcryption schemes, in order to help the authorised receivers to find the corresponding information for decryption from the ciphertext, the list of identities of all authorised receivers should be included in the ciphertext as a necessary element. However, this method has directly led to the privacy leakage problem of receivers. Later, several anonymous multi-receiver signcryption...
Assigning ASCII values to the plaintext alphabets during transmission of documents is very common, and as we know that the ASCII value of ‘a’ is less than that of ‘z’. But, what would happen if the document contains more ‘z’ as compared to ‘a’. In that case, achieving security through encryption - decryption and compression is very difficult. This paper proposes a technique of assigning codes to plain...
Symmetric key algorithms are a typically efficient and fast cryptosystem, so it has significant applications in many realms. For a wireless ad hoc network with constraint computational resources, the cryptosystem based on symmetric key algorithms is extremely suitable for such an agile and dynamic environment, along with other security strategies. In this paper, we introduce the concept of selective...
Since data is a vital resource that must be transferred over the Internet, the security issue of this resource must be considered seriously. There are various methods have been proposed by researchers; some of them have been implemented, such as DES and AES. However, those methods have some limitations that allow the plaintext to be unsaved from any threats while it was transferring over the Internet...
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