Implementing Trustworthy Dynamic Biometric Signature according to the Electronic Signature Regulations

Many countries of the world exercise legal regulations, which embedded electronic signature based on asymmetric cryptography in their legislation. However, this kind of signature is cumbersome and not yet overly accepted by the public. This paper studies the possibility of replacing it by dynamic biometric signature (DBS) in relation with demands of the legal regulations (EU in particular) not only as "current" electronic signature (ES) but also as "advanced" electronic signature (AES). However, in order to satisfy the requirements for AES, whilst being implemented it must fulfill demands given by the legislation for this type of signature. The authors describe the methods how to satisfy such demands and thus build a system utilizing DBS with high level of security. Furthermore, the authors discuss the issues of uniqueness of DBS in terms of individual's characteristic motion, and hence the validity of parameters required for unique identification of the user. The study then proposes important methods for identification of an individual. The authors then conclude that DBS under the right implementation can form significant alternative to ES and AES.