Rainer Plaga

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We propose a new hypothesis for the origin of the major part of non-solar hadronic cosmic rays (CRs) at all energies: highly relativistic, narrowly collimated jets from the birth or collapse of neutron stars (NSs) in our Galaxy accelerate ambient disk and halo matter to CR energies and disperse it in hot spots which they form when they stop in the Galactic(More)
The Trusted Platform Module TPM is a basic but nevertheless very complex security component that can provide the foundations and the root of security for a variety of applications. In contrast to the TPM, other basic security mechanisms like cryptographic algorithms or security protocols have frequently been subject to thorough security analysis and formal(More)
We specify a system for authentication and key derivation using genetic fingerprints which prevents the recovery of biometric information from data stored for verification. We present a detailed security analysis based on es­ timates of the entropy of the DNA data and formal security results. The scheme is shown to be robust and efficient by analysing the(More)
The characteristic novelty of what is generally meant by a " physical unclonable function " (PUF) is precisely defined, in order to supply a firm basis for security evaluations and the proposal of new security mechanisms. A PUF is defined as a hardware device which implements a physical function with an output value that changes with its argument. A PUF can(More)
In this contributionasurvey is presenteda bout thep ossibilitiesa nd difficultiesofacryptographicp rotectiono fb iometric informationf or thep urpose of authentication. Thec rucial role of sufficient informationc ontent of biometric templatesw ill be presented. It will be shownh ow to uset hisa pproach of a cryptographicp rotectiono fb iometrict emplates in(More)
We present a practical and highly secure method for the au-thentication of chips based on a new concept for implementing strong Physical Unclonable Function (PUF) on field programmable gate arrays (FPGA). Its qualitatively novel feature is a remote reconfiguration in which the delay stages of the PUF are arranged to a random pattern within a subset of the(More)
A new definition of "Physical Unclonable Functions" (PUFs), the first one that fully captures its intuitive idea among experts, is presented. A PUF is an information-storage system with a security mechanism that is 1. meant to impede the duplication of a precisely described storage-functionality in another, separate system and 2. remains effective against(More)
Physical Unclonable Functions (PUFs) sind ein grundlegend neuartiger Baustein für die Sicherung von Hardware Architekturen. Was genau steckt hinter diesem Konzept? Gibt es Zusammenhänge zu vertrauten Hardware Komponenten? Was genau ist neu an PUFs? Gibt es Sicherheitsziele die sich nur mit PUFs erreichen lassen? Der Beitrag gibt Antworten auf diese Fragen(More)