Methods and apparatus for authentication and identity management using a public key infrastructure (PKI) in an IP-based telephony environment
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United States of America Patent
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Jul 23, 2019
Grant Date -
Dec 8, 2016
app pub date -
Aug 23, 2016
filing date -
Apr 10, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus are provided for user authentication using a Public Key Infrastructure (PKI) in an IP-based telephony environment, such as an IMS network. A user of a user device attempting to access an IP-based telephony network can be authenticated by obtaining one or more private keys of the user from a secure memory associated with the user device; generating an integrity key and a ciphering key; encrypting the integrity key and the ciphering key using a session key; encrypting the session key with a public key of the IP-based telephony network; and providing the encrypted session key, encrypted integrity key and encrypted ciphering key to the IP-based telephony network for authentication. A network-based method is also provided for authenticating a user in an IP-based telephony network.
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