| 摘要 |
The invention relates to a device and a method at a telecommunications system and a data communications system which makes possible signing and encryption of the information which is transmitted between a transmitting and a receiving equipment in said system. The invention is briefly characterized in a software for signing and encryption by means of smart cards which are linked together with a software which can show text, data entry fields, buttons, etc. This program is utilized as a plug-in unit or a Java-unit in a WWW-browser. Before the information is shown to the user, or is transmitted from the user, encryption functions can be applied to the information. All internal communication related to the safety on the local PC will by that be needless, by all necessary information processing being performed in said plug-in unit. All extra steps in the signalling process is by that concealed from the user and intruders, if any.
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