A Novel Method to Implement Book Cipher

Cipher text only attack on speech time scrambling systems using correction of audio spectrogram

Recently permutation multimedia ciphers were broken in a chosen-plaintext scenario. That attack models a very resourceful adversary which may not always be the case. To show insecurity of these ciphers, we present a cipher-text only attack on speech permutation ciphers. We show inherent redundancies of speech can pave the path for a successful cipher-text only attack. To that end, regularities ...

Novel Impossible Differential Cryptanalysis of Zorro Block Cipher

Impossible difference attack is a powerful tool for evaluating the security of block ciphers based on finding a differential characteristic with the probability of exactly zero. The linear layer diffusion rate of a cipher plays a fundamental role in the security of the algorithm against the impossible difference attack. In this paper, we show an efficient method, which is independent of the qua...

Critique of Novel/ Precedence of Form to Content: Review of the Book Thirst: Mehdi Ebrahimi Lame

Optimizing image steganography by combining the GA and ICA

In this study, a novel approach which uses combination of steganography and cryptography for hiding information into digital images as host media is proposed. In the process, secret data is first encrypted using the mono-alphabetic substitution cipher method and then the encrypted secret data is embedded inside an image using an algorithm which combines the random patterns based on Space Fillin...

A study of the principles and categories related to the world of architecture in the book of Nuzhat Nama-yi Ala'i

Ancient Persian sources are among the most important sources for understanding the past architecture of Iran. Among these texts is the book Nuzhat Nama-yi Alachr('39')i by Shah Mardan Ibn Abi al-Khayr, which was written in the last years of the fifth century AH. This book is an encyclopedia of common sciences of that time and includes various subjects such as animals, plants, jewelry, arithmeti...