Research Interests
Cryptographic hardware and embedded systems,
secure hardware design,
side-channel attacks and countermeasures,
algorithms and architectures for computer arithmetic
and finite fields.
Cryptographic Engineering
Cryptography provides techniques, mechanisms, and tools for
private and authenticated communication, and for performing
secure and authenticated transactions over the Internet as
well as other open networks. It is highly probable that each
bit of information flowing through our networks will have to be
either encrypted and decrypted or signed and authenticated in a
few years from now. This infrastructure is needed to carry over
the legal and contractual certainty from our paper-based offices
to our virtual offices existing in the cyberspace.
In such an environment, server and client computers as well as handheld,
portable, and wireless devices will have to be capable of
encrypting or decrypting and signing or verifying messages.
That is to say, without exception, all networked computers and
devices must have cryptographic layers implemented, and must be
able to access to cryptographic functions in order to provide
security features.
In this context, efficient (in terms of time,
area, and power consumption) hardware structures will have to be
designed, implemented, and deployed. Furthermore, general-purpose
(platform-independent) as well as special-purpose software
implementing cryptographic functions on embedded devices are needed.
An additional challenge is that these implementations should be
done in such a way to resist cryptanalytic attacks launched against
them by adversaries having access to primary (communication) and
secondary (timing, power, electromagnetic, acoustic) channels.
We have coined the term "cryptographic engineering" to describe
interdisciplinary research and development efforts leading to
secure and efficient hardware and software realizations of
cryptographic systems.
Our particular research and development areas are quite diverse
and include several topics, such as
- Architectures for public-key and secret-key cryptosystems
- Reconfigurable hardware and FPGAs for cryptography
- Cryptography for ubiquitous computing and wireless applications
- Efficient arithmetic algorithms
- Special-purpose hardware for cryptanalysis
- Architectures for trusted computing
- Device identification
- Smart card architectures and attacks
- True and pseudo random number generators
- Security for embedded software and systems
- Efficient software algorithms for embedded processors
- Formal methods and tools for secure hardware design
- Cryptographic processors and co-processors
- Security in commercial consumer applications (pay-TV, automotive, etc)
- Hardware tamper resistance
- Technologies and hardware for content protection
- Side channel attacks and countermeasures
- Nonclassical cryptographic technologies
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