In today's digital world, security and verifiability are key features of business operations. Therefore, the digital signature, which is equivalent to a handwritten one to some extent, is a crucial element in ensuring authenticity, identification, and credibility. This is why, even in public administration, we need appropriate, legally supported, and technically fast and reliable solutions.
In the thesis titled "The Potential of Alternative Digital Signature Methods in Public Administration," the problem is addressed through an analysis of the current state of public administration, a review of the history of cryptography, symmetric and asymmetric methods, and digital signatures, with a focus on the methods of ElGamal, RSA, ECDSA, and DSA.
The methodology was based on a literature review and analysis of existing approaches, coupled with an extensive comparison of individual algorithms. The analysis was carried out for three potential alternatives to the RSA algorithm, and their applicability in specific contexts of public administration was identified. From the results, conclusions were drawn that ECDSA, owing to its smaller spatial load, is a suitable algorithm for use in mobile technologies, embedded systems, and cards. DSA, due to its exceptional signature verification speed, can be used in systems where multiple documents are involved and such signature verification is essential, such as in e-applications. The ElGamal method proved to be useful for e-voting, should the state ever develop a system to support it.
The research findings contribute to the professional knowledge in the field of cryptography within public administration and offer a theoretical perspective that specialists can follow in further studies of practical implementations of alternative methods.
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