Merging of Vigenére Cipher with XTEA Block Cipher to Encryption Digital Documents

Image Encryption Using Chaos and Block Cipher

In this paper, a novel image encryption scheme is proposed based on combination of pixel shuffling and new modified version of simplified AES. Chaotic baker’s map is used for shuffling and improving S-AES efficiency through S-box design. Chaos is used to expand diffusion and confusion in the image. Due to sensitivity to initial conditions, chaotic baker’s map has a good potential for designing ...

INT-RUP Analysis of Block-cipher Based Authenticated Encryption Schemes

Comparative Analysis of Block Cipher-Based Encryption Algorithms: A Survey

Nowadays, network security is increasing rapidly and becoming an important and challenging issue. Information and internet security threats and attacks are becoming difficult to be detected. Therefore, encryption has come up as a solution, and plays an important role in information security system. Many techniques are needed to protect the shared data. In this paper we implemented four encrypt ...

Analysis of One-pass Block Cipher Based Authenticated Encryption Schemes

A New Encryption Standard of Ukraine: The Kalyna Block Cipher

The Kalyna block cipher was selected during Ukrainian National Public Cryptographic Competition (2007-2010) and its slight modification was approved as the new encryption standard of Ukraine in 2015. Main requirements for Kalyna were both high security level and high performance of software implementation on general-purpose 64-bit CPUs. The cipher has SPN-based (Rijndael-like) structure with in...