Method of distributing a public key
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United States of America Patent
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Apr 22, 2008
Grant Date -
Mar 31, 2005
app pub date -
Dec 10, 2002
filing date -
Dec 10, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of distributing the public key of an asymmetric key pair with a private key and the public key from a mobile station to a key managing computer, the method include the steps of: communicating a password (OTP) from the key managing (203) computer to the mobile station (209) of a registered user (201) by a secure channel (202) to thereby provide a shared secret; at the mobile station and at the key managing computer, generating a first code (MAC1) and a second node (MACT1), respectively, based on the same predefined generation method, which codes (MAC1; MACT1) are generated from the password (OTP); by the mobile station (209), transmitting the public key and the first code (MAC1) to the key managing computer (203); at the key managing computer (203), receiving the public key and the first code (MAC1) from the mobile station (209); checking the authenticity of the registered user (201) based on comparing the first code (MAC1) and the second code (MACT1).
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