Abstract: This chapter focuses on block ciphers, which are the most commonly used algorithms to encrypt confidential data. In addition to ciphering, block ciphers can be used as stream ciphers and ...

A block cipher encrypts bits, the smallest unit of computational information, in blocks. In contrast, other types of encryption methods tend to encrypt bits one by one. Block ciphers are frequently ...

Abstract: In order to solve the problem of worse recognition performance under the multi-classification scenarios of existing cryptosystem identification, this paper proposes a block cryptosystem ...

If CBC was the breakthrough that defeated ECB’s pattern leakage, then CFB (Cipher Feedback Mode) is the clever improvisation that transformed block ciphers into something they were never originally ...

Zero-correlation linear cryptanalysis is an important method to analyze the security of block ciphers. But there are few works on zero-correlation linear attacks combined with the related-key setting.

Block ciphers, a branch of modern cryptography, are playing a more prominent role in protecting information security as 5G technology develops. Although encryption algorithms of the traditional ...

In the era of pervasive multimedia communication, image data has become a dominant form of information exchange across embedded, mobile, and IoT platforms. This surge in visual data transmission ...

Tweakability is achieved by XORing the key with the tweak and a permutation of the key during key initialization. This is generally undesirable, for performance and security reasons. For performance, ...