Masks of Classic and Modern Times,—I

Failure of Classic Hashes on Modern Cryptanalysis

Abstract. In this paper we will present some schemes for strengthening network authentification over insecure channels with biometric concepts or how to securely transfer or use biometric characteristics as cryptographic keys. We will show why some current authentification schemes are insufficient and we will present our concepts of biometric hashes and authentification that rely on unimodal an...

On the classic and modern theories of matching.

Classic matching theory, which is based on Herrnstein's (1961) original matching equation and includes the well-known quantitative law of effect, is almost certainly false. The theory is logically inconsistent with known experimental findings, and experiments have shown that its central constant-k assumption is not tenable. Modern matching theory, which is based on the power function version of...

SONAR Systems and Underwater Signal Processing: Classic and Modern Approaches

Implantology and Prothodontics at Crossroads - Classic vs. Modern Treatment Concepts

Lost teeth reduce the oral health related quality of life significantly and affect the psychological state of the person concerned negatively. Nowadays, replacement of teeth with implants is a common procedure and patients embrace the possibilities to restore their quality of life. As there are numerous ways to restore a patient’s dentition, this article exemplarily uses two case reports to ill...

Horseradish peroxidase: a modern view of a classic enzyme.

Horseradish peroxidase is an important heme-containing enzyme that has been studied for more than a century. In recent years new information has become available on the three-dimensional structure of the enzyme and its catalytic intermediates, mechanisms of catalysis and the function of specific amino acid residues. Site-directed mutagenesis and directed evolution techniques are now used routin...