作者: Juha-Matti Linkkonen , Mika Honkanen , Mika Leivo
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摘要: A method for real-time authentication or authorization of a user (1) secured system (3) is based on using two channels and an device (4) from which the can request (6) over information network connection (6, 9). One telephone (8), to connected. logging into other channel must make call by his her (2). The verifies that has been received number user's telephone, issues positive verification response system. Upon receiving response, provides requested service through channel.