Abstract: An identity verification device comprises a cellular telecommunications modem and a fingerprint scanner coupled to the modem, the verification device being configured for storing first fingerprint data in an enrolment process and being operable, in response to the modem receiving a verification command via a cellular telecommunications network, to perform a verification process in which the fingerprint scanner scans a fingerprint to obtain second fingerprint data, the first and second fingerprint data are compared with each other, and in the event of a match between the first and second fingerprint data, the modem transmits a response signal to a predetermined destination via the telecommunications network. The device may be used in a networked telecommunications system in which the electronic transactions may be initiated by smart cards and other devices.

Abstract: An identity verification device comprises a cellular telecommunications modem and a fingerprint scanner coupled to the modem, the verification device being configured for storing first fingerprint data in an enrolment process and being operable, in response to the modem receiving a verification command via a cellular telecommunications network, to perform a verification process in which the fingerprint scanner scans a fingerprint to obtain second fingerprint data, the first and second fingerprint data are compared with each other, and in the event of a match between the first and second fingerprint data, the modem transmits a response signal to a predetermined destination via the telecommunications network. The device may be used in a networked telecommunications system in which the electronic transactions may be initiated by smart cards and other devices.

Abstract: An identity verification device comprises a cellular telecommunications modem and a fingerprint scanner coupled to the modem, the verification device being configured for storing first fingerprint data in an enrollment process and being operable, in response to the modem receiving a verification command via a cellular telecommunications network, to perform a verification process in which the fingerprint scanner scans a fingerprint to obtain second fingerprint data, the first and second fingerprint data are compared with each other, and in the event of a match between the first and second fingerprint data, the modem transmits a response signal to a predetermined destination via the telecommunications network. The device may be used in a networked telecommunications system in which the electronic transactions may be initiated by smart cards and other devices.

Abstract: A data encryption and decryption process, particularly for use in smart cards, in which the data is encrypted using an encryption key derived from a fingerprint template. The fingerprint template is stored, in unencrypted form, in a memory which, apart from the fingerprint template, is filled or substantially filled with random data values thereby to conceal the fingerprint template. The template may be broken up into components stored in disparate locations in the memory to further increase security. Decryption is performed by, firstly, carrying out scanning a fingerprint to obtain a new template, comparing the new template with the previously stored template and, if there is a match, regenerating the encryption key from the previously stored template. The regenerated encryption key is then used to decrypt the data.

Abstract: A power supply circuit for the modem of a mobile telecommunications device comprises a battery, a modem status detection circuit for detecting whether the modem is in communication with a base station or is searching for a base station, a current or voltage booster, and a switching circuit controlled by the detection circuit for switching the current or voltage booster into and out of operation such that the booster provides additional current to the modem when it is searching for a base station.

Abstract: A data encryption and decryption process, particularly for use in smart cards, in which the data is encrypted using an encryption key derived from a fingerprint template. The fingerprint template is stored, in unencrypted form, in a memory which, apart from the fingerprint template, is filled or substantially filled with random data values thereby to conceal the fingerprint template. The template may be broken up into components stored in disparate locations in the memory to further increase security. Decryption is performed by, firstly, carrying out scanning a fingerprint to obtain a new template, comparing the new template with the previously stored template and, if there is a match, regenerating the encryption key from the previously stored template. The regenerated encryption key is then used to decrypt the data.

Abstract: An identity verification device comprises a cellular telecommunications modem and a fingerprint scanner coupled to the modem, the verification device being configured for storing first fingerprint data in an enrolment process and being operable, in response to the modem receiving a verification command via a cellular telecommunications network, to perform a verification process in which the fingerprint scanner scans a fingerprint to obtain second fingerprint data, the first and second fingerprint data are compared with each other, and in the event of a match between the first and second fingerprint data, the modem transmits a response signal to a predetermined destination via the telecommunications network. The device may be used in a networked telecommunications system in which the electronic transactions may be initiated by smart cards and other devices.

Abstract: A power supply circuit for the modem of a mobile telecommunications device comprises a battery, a modem status detection circuit for detecting whether the modem is in communication with a base station or is searching for a base station, a current or voltage booster, and a switching circuit controlled by the detection circuit for switching the current or voltage booster into and out of operation such that the booster provides additional current to the modem when it is searching for a base station.