F. Hoornaert

Bio: F. Hoornaert is an academic researcher. The author has contributed to research in topics: Chip & Cryptography. The author has an hindex of 5, co-authored 6 publications receiving 75 citations.

Security and performance optimization of a new DES data encryption chip

Abstract: The implementation of a high-performance data encryption standard (DES) data encryption chip is presented. At the system design level, cryptographical optimizations and equivalence transformations lead to a very efficient floorplan with minimal routing, which otherwise would present a serious problem for data-scrambling algorithms. These optimizations, which do not compromise the DES algorithm nor the security, are combined with a highly structured design and layout strategy. Novel CAD tools are used at different steps in the design process. The result is a single chip of 25 mm/sup 2/ in 3- mu m double-metal CMOS. Functionality tests show that a clock of 16.7 MHz can be applied, which means that a 32-Mb/s data rate can be achieved for all eight byte modes. This is the fastest DES chip reported yet, allowing equally fast execution of all four DES modes of operation, due to an original pipeline architecture. >

Security considerations in the design and implementation of a new DES chip

Abstract: This paper describes the impact of cryptographic requirements on the design of a new highly performant DES chip implementation. Actual cryptogaphical applications demand for both high security and high speed. It is the aim of this contribution to show how both can be combined.

ASIC cryptographical processor based on DES

Abstract: To date, many commercial applications in telecommunications, data transmission and data storage require a high level of cryptographical protection. The ASIC processor, presented here, can be programmed to execute a large set of cryptographical functions, not found in other cryptographical devices. Novel architectures for both data path and controller have been designed to realize this high degree of programmability, while still reaching a high throughput. The compact processor counts 18 K transistors on 25 mm/sup 2/ in a 2.4 mu m CMOS process and yet it reaches a throughput of 30 Mbit/s for every single-encryption mode. It is the fastest data encryption standard (DES) processor currently available. >

Security considerations in the design and implementation of a new DES chip

Abstract: This paper describes the impact of cryptographic requirements on the design of a new highly performant DES chip implementation. Actual cryptogaphical applications demand for both high security and high speed. It is the aim of this contribution to show how both can be combined.

PRESENT: An Ultra-Lightweight Block Cipher

Abstract: 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, present . Both security and hardware efficiency have been equally important during the design of the cipher and at 1570 GE, the hardware requirements for present are competitive with today's leading compact stream ciphers.

Applied cryptography, second edition : protocols, algorithms,and source code in C

Abstract: Part I—Cryptographic Protocols Chapter 2—Protocol Building Blocks 2.

A cost-effective, high-bandwidth storage architecture

Abstract: This paper describes the Network-Attached Secure Disk (NASD) storage architecture, prototype implementations oj NASD drives, array management for our architecture, and three, filesystems built on our prototype. NASD provides scalable storage bandwidth without the cost of servers used primarily, for transferring data from peripheral networks (e.g. SCSI) to client networks (e.g. ethernet). Increasing datuset sizes, new attachment technologies, the convergence of peripheral and interprocessor switched networks, and the increased availability of on-drive transistors motivate and enable this new architecture. NASD is based on four main principles: direct transfer to clients, secure interfaces via cryptographic support, asynchronous non-critical-path oversight, and variably-sized data objects. Measurements of our prototype system show that these services can be cost-effectively integrated into a next generation disk drive ASK. End-to-end measurements of our prototype drive andfilesysterns suggest that NASD cun support conventional distributed filesystems without performance degradation. More importantly, we show scaluble bandwidth for NASD-specialized filesystems. Using a parallel data mining application, NASD drives deliver u linear scaling of 6.2 MB/s per clientdrive pair, tested with up to eight pairs in our lab.

New Lightweight DES Variants

Abstract: In this paper we propose a new block cipher, DESL (DES Lightweight), which is based on the classical DES (Data Encryption Standard) design, but unlike DES it uses a single S-box repeated eight times. On this account we adapt well-known DES S-box design criteria, such that they can be applied to the special case of a single S-box. Furthermore, we show that DESL is resistant against certain types of the most common attacks, i.e., linear and differential cryptanalyses, and the Davies-Murphy attack. Our hardware implementation results of DESL are very promising (1848 GE), therefore DESL is well suited for ultra-constrained devices such as RFID tags.

The Block Cipher Companion

Abstract: Block ciphers encrypt blocks of plaintext, messages, into blocks of ciphertext under the action of a secret key, and the process of encryption is reversed by decryption which uses the same user-supplied key. Block ciphers are fundamental to modern cryptography, in fact they are the most widely used cryptographic primitive useful in their own right, and in the construction of other cryptographic mechanisms. In this book the authors provide a technically detailed, yet readable, account of the state of the art of block cipher analysis, design, and deployment. The authors first describe the most prominent block ciphers and give insights into their design. They then consider the role of the cryptanalyst, the adversary, and provide an overview of some of the most important cryptanalytic methods. The book will be of value to graduate and senior undergraduate students of cryptography and to professionals engaged in cryptographic design. An important feature of the presentation is the authors' exhaustive bibliography of the field, each chapter closing with comprehensive supporting notes.