| 摘要 |
The invention relates to a method for the wireless access of computer-based services in an attributable manner, using a mobile hand-held device (11), by a service user (2) who is temporarily in the vicinity of a local service computer (26), on which service software (3) comprising an input for services (5) and preferably an output for services (6) is run. Said service software (3) can be distributed among additional service computers (4). To access said services, the service user (2) uses a personal, mobile hand-held device (11), which comprises a standard input/output (14) and preferably a simulation system (12) for the interactive entry of service data. The mobile hand-held device (11) for accessing a service interacts with the service software (3) via a distributed service access (17) and a wireless connection (10). The mobile hand-held device (11) and the service computer (3) transmit data, whose attributability is to be guaranteed, by means of digital signatures, according to an agreed protocol (25). Said data can be summarised in certificates and transaction data records (9) and can be obtained in part on the mobile hand-held device (11), using read devices (13). |
