The legal framework of electronic signature in Czech Republic originates in 2000. The law was amended for several times and significantly changed in 2004. The Ministry of Informatics has in relation to the electronic signature these obligations, in particular: drafting legal regulations, issuing methodological directives, gives accreditation to providers of certification services, supervising the qualified providers, evaluating the conformity of tools. The accreditation was acquired by three providers of certification services: First Certificated, Inc., Czech Post and eIdentity, Inc.. The electronic signature in accordance with the law is mostly used by the tax declarations and declarations for Czech administration of social security. For the communication between the citizens and public offices the electronic register offices are used and even more the Postal of public administration, too. Allowing to mark data massages with electronic marks is the most recent news.