Backstage, after a particular scene in which we did a stylised cipher based on morning prayers, we folded our prayer mats carefully and put them away respectfully.
Peculiar to Turkish calligraphy is the tuğra (ṭughrā), a kind of royal cipher based on the names and titles of the reigning sultan and worked into a very intricate and beautiful design.
DDO-64 is a 64-bit Feistel-like block cipher based on data-dependent operations (DDOs).
The stream cipher based on a discrete piecewise linear chaotic map satisfies the security requirement of cipher design.
Our numerical results indicate PKC based systems can outperform symmetric cipher based systems, since the back end servers can identify RFID tags with PKC based systems approximately 57 times faster than the best symmetric cipher based systems.
The proposed method uses a simple block cipher based on matrix multiplication to encrypt images which are then sent to all users via multicast transmission.
In this paper, we propose a new loss-less symmetric image cipher based on the widely used substitution diffusion architecture which utilizes chaotic standard and logistic maps.
In particular, in the proposed system, the biometric signal is initially enciphered using a chaotic pseudorandom bit generator and a chaos-driven cipher, based on mixed feedback and time-variant S-boxes.
In this paper, a block cipher based on the chaotic standard map is proposed, which is composed of three parts: a confusion process based on chaotic standard map, a diffusion function, and a key generator.
