LBlock is a lightweight block cipher proposed in ACNS 2011. It has 64-bit block size and 80-bit key size which is the typical parameter setting accpeted by most of the recent proposed lightweight block ciphers. It has fast hardware implementation efficiency and it still remains rather secure considering the recent results and the security margin it provides. In this paper, we investigate the di...

Protecting software implementations of block ciphers from side channel attacks is a significant concern to realize secure embedded computation platforms. The relevance of the issue calls for the automation of the side channel vulnerability assessment of a block cipher implementation, and the automated application of provably secure defenses. The most recent methodology in the field is an applic...

There is a significant effort in building lightweight cryptographic operations, yet the proposed solutions are typically singlepurpose modules that can implement a single functionality. In contrast, we propose BitCryptor, a multi-purpose, bit-serialized compact processor for cryptographic applications on reconfigurable hardware. The proposed crypto engine can perform pseudo-random number genera...

In this paper we propose a new cryptanalytic method against block ciphers, which combines both algebraic and statistical techniques. More specifically, we show how to use algebraic relations arising from differential characteristics to speed up and improve key-recovery differential attacks against block ciphers in some situations. To illustrate the new technique, we apply it to reduced round ve...

With the establishment of the AES the need for new block ciphers has been greatly diminished; for almost all block cipher applications the AES is an excellent and preferred choice. However, despite recent implementation advances, the AES is not suitable for extremely constrained environments such as RFID tags and sensor networks. In this paper we describe an ultra-lightweight block cipher, pres...

With the new era of Internet Things (IoT) technology, many devices with limited resources are utilized. Those susceptible to a significant number malware and other risks emerging rapidly. One most appropriate methods for securing those IoT applications is cryptographic algorithms, as cryptography masks information by eliminating risk collecting any meaningful patterns. This ensures that all dat...