2010 iii DEDICATION To all those willing to wait for the fruits of their labor. iv EPIGRAPH When the facts change, I change my mind. What do you do, sir?

Programmable logic devices (PLDs) are a critical component in embedded industrial designs. PLDs have evolved in industrial designs from providing simple glue logic, to using FPGAs as a coprocessor. This technique allows for I/O expansion and off-loads the primary microcontroller (MCU) or digital signal processor (DSP) device in applications such as communications, motor control, I/O modules, an...

The potential of secure coprocessing to address many emerging security challenges and to enable new applications has been a long-standing interest of many members of the Computer Research and Applications Group, including this author. The purpose of this paper is to summarize this thinking, by presenting a taxonomy of some potential applications and by summarizing what we regard as some particu...

A cryptographic coprocessor is described for certifying outcomes of software programs. The system for certifying and authenticating outputs allows a third party who trusts the secure components of the system to verify that a specified program actually executed and produced a claimed output.

A cryptographic coprocessor is described for certifying outcomes of software programs. The system for certifying and authenticating outputs allows a third party who trusts the secure components of the system to verify that a specified program actually executed and produced a claimed output. keywords.

This paper details our experiences with successfully validating a trusted device at FIPS 140-1 Level 4—earning the world’s first certificate at this highest level. Over the last several years, our group designed and built a physically secure PCI card (the IBM 4758 [5]) containing a general-purpose processor with crypto support. However, for this device to function as a trusted platform for secu...

In this article we present a low-cost coprocessor for smartcards which supports all necessary mathematical operations for a fast calculation of the Elliptic Curve Digital Signature Algorithm (ECDSA) based on the finite field GF(2m). These ECDSA operations are GF(2m) addition, 4-bit digit-serial multiplication in GF(2m), inversion in GF(2m), and inversion in GF(p). An efficient implementation of...

The 6800 is a popular model for teaching microprocessors. B T G 1"an and I. C Sia have designed a board that interfaces this processor to the popular Apple II computer for practical teaching exercises The 6800 is favoured as a teaching model in many educational establishments. Often, these establishments will have Apple II microcomputers installed, and these systems could be useful for teaching...

This paper examines the prospects for “low-end” coprocessors: custom devices, with one chip’s worth of hardware, operating at system clock speeds and sharing a general purpose host processor’s path to system memory. With these restrictions, custom hardware cannot make use of fast devices or massive parallelism, and is subject to the same “von Neumann bottleneck” seen by the host. Nonetheless, w...

Query processing on GPU-style coprocessors is severely limited by the movement of data. With teraflops of compute throughput in one device, even high-bandwidth memory cannot provision enough data for a reasonable utilization. Query compilation is a proven technique to improve memory efficiency. However, its inherent tuple-at-a-time processing style does not suit the massively parallel execution...