Importance

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Abstract

The invention concerns a device for digital signature of an electronic document by means of a signature creation unit, protected against manipulation, and especially portable and card-like, which is provided for cooperation with a data processing unit offering the electronic document for signature and receiving the digital signature, and which is formed for deposit of a secrete, access-protected private signature encryption, where by the effect of a signature processor unit of the signature creation unit the digital signature on the basis of a signage string characteristic for the electronic document as well as the private digital signature encryption can be created, where the signature creation unit has an output unit, which is associated with it and which is not influenced by the data processing unit, for providing an output signal for a user of the data processing unit, where an input unit is associated with the signature creation unit, which can be confirmed by the user, and where the signature creation unit is formed in such a way, that in response to the output signal a user input into the input unit has to follow, before the digital signature is created and/or transmitted to the data processing unit.

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First Claim