Download Using GSM SIM Authentication in VPNs

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7. Implementation of a Prototype
Figure 7.1: High Level Deployment Diagram
reader to use for communicating with the SIM. If a SIM is present in the card reader,
the Supplicant queries the card, and tries to authenticate using the PIN code provided
by the user.
When a authenticated connection to the card is established, the supplicant can transmit
APDUs to the card to perform any of the functions supported by the Smart Card,
described in GSM 11.11.
Built in SIM Reader
By using a phone supporting the Bluetooth SIM Access Prole, or SAP, the computer
can establish a wireless connection to the SIM Card inserted in the phone.
After
activating Bluetooth on the phone and setting the phone to discoverable mode, the
SIM Supplicant can nd the mobile phone when scanning for nearby Bluetooth devices.
This of course requires the computer to support Bluetooth.
After the Phone is connected, the Supplicant requests the connection to the SIM Access
Prole. If the phone does not support this prole, the connection request is denied. If
the prole is supported, a passkey must be provided to complete the connection. This
passkey has to be 16 digits.
Using GSM SIM Authentication in VPNs