Digital transaction signing method has user interface and security module at subscriber terminal used for generation of digital signature for signing for transaction upon certification

摘要

The transaction signing method has a data network used for transmission of transaction data to a subscriber terminal (E,M) having a user interface (E) and a security module (M) for generation of a digital signature for signing for the transaction (TR) upon reception of digital certification contained within transaction data. Also included are Independent claims for the following: (a) a mobile telephone terminal for digital transaction signing method; (b) a chip card security module for a digital transaction signing method