Abstract: The invention relates to a method and arrangement for voting. In particular the invention relates to voting by means of a terminal. In a voting method according to the invention, the eligibility of the voter is verified in the register of eligible voters, and an encrypted polling code is generated from the candidate information of the candidate selected, based on the public key method. The resulting encrypted polling code is sent to the election data system where the polling code is decrypted and the vote contained in the polling result is recorded to the respective candidate.

Abstract: The invention relates to a method and arrangement (300) for offering a service via an open (202) and a closed (206) network. In particular the invention relates to the transfer of identification information associated with a transaction between the different parties and systems involved in the transaction. An idea of the invention is that data associated with a transaction are transferred to a service user's (223) closed-network terminal (207) for accepting a service or identifying the service user. Acceptance of a service or user identification can be accomplished by entering a code at the service user's terminal (207). Another idea of the invention is a reliable identification and authentication of the parties (223, 224) involved in a transaction by a service provider (203, 205) or a reliable third party.

Abstract: The invention relates to a method and arrangement for managing data transmission in a data network. In particular, the invention relates to the transmission of confidential information in a data network. One of the basic principles of the invention is that when the information meant for the user is recorded (413), the address of the storage location is transmitted to the user by intermediation of a reliable party (intermediator, 440).