We demonstrate how 1-of-n encoded speed-independent circuits provide a good framework for constructing smart card functions that are resistant to side channel attacks and fault injection. A novel alarm propagation technique is also introduced. These techniques have been used to produce a prototype smart card chip: a 16-bit secure processor with Montgomery modular exponentiator and smart card UART.

Faculty of Electrical Engineering, Mathematics and Computer Science CE-MS-2006-05 Power analysis of smart cards is commonly used to obtain information about implemented cryptographic algorithms. We propose a similar methodology for reverse engineering of Java Card applets. In order to acquire power traces, we present a new microcontroller based smart card reader with an accurate adjustable trig...

Database applications and technologies are of central importance in many information systems a person may encounter. To obtain services, the end-users are required a smart card (plastic card containing a microcomputer), which is a device providing information about the user's identity and some related personal data. It can be updated and loaded with new data that will be used during further ses...

Remotely keyed encryption supports fast encryption on a slow smart card. For the scheme described here, even a smart card without a builtin encryption function, would do the job, e.g., a signature card.

Smart card configuration is a complex process, which has an important impact on the product price. Realizing it efficiently and with minimum development effort is a major challenge for smart card manufacturers. This paper exposes the motivations for applying modeling techniques to Software Product Line (SPL), in order to improve the smart card configuration and personalization processes. Our ap...

Smart cards are widely used along with PayTV receivers to store secret user keys and to perform security functions to prevent any unauthorized viewing of PayTV channels. Java Card technology enables programs written in the Java programming language to run on smart cards. Smart cards represent one of the smallest computing platforms in use today. The memory configuration of a smart card are of t...

Smart cards have opened up possibilities for many exciting applications. However, one problem with conventional smart cards is that they only have very limited computational power. As a result, it takes too long for a smart card to perform a single RSA signature operation in real time applications. Server-aided RSA signature computation protocols offer feasible solutions for this problem. The b...

The national funded project [BioP@ss] researches the possibilities of an IP based smart card interface based on the international smart card application interface standards [CEN 15480] and [ISO/IEC 24727]. Instead of the classical APDU based communication a TCP/IP based web service communication with the smart card is established. This solution offers the benefit that this interface relies on w...

Smart cards have been proliferated into many aspects of modern life. Historically, the ownership of smart cards has remained with the smart card issuers. Although this ownership model is favoured by a wide range of industries and service providers, it does not provide optimum convenience and flexibility to cardholders. One potential solution could be to shift the control of smart cards from the...

Recent proposals have been made to connect smart cards to the Internet, to meet needs that are not easily satisfied by current smart card interface standards. However, all these proposals require the use of off-card software to do the translation between the world of the Internet and that of the smart card (i.e., proxy architecture). In this paper we present an alternative approach, following t...