| Authentication |
Verification of the identity of a user to a network, or a network to the user. Passwords, digital certificates, smart cards and biometrics can be used to authenticate a user. In the case of mobile phones, a user may be authenticated to the network to ensure that they are `activated` - with an account and credit on that network. Conversely, Mobile networks may authenticate themselves to a user`s mobile phone to ensure that the phone is locked to their network.
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