However, the phone contains several easily tainted identifiers: the phone number, SIM card identifiers (IMSI,ICC-ID), and device identifier (IMEI) which are all accessed through well-defined APIs.
It specifies that the records to be produced include "session identifying information", such as "originating and terminating number", the duration of each call, telephone calling card numbers, trunk identifiers, International Mobile Subscriber Identity (IMSI) number, and "comprehensive communication routing information".
While the new mandate to use smart cards as a federal identifier is an endorsement of the technology, smart card technology still has its share of hurdles to overcome.
The new card – using a biometric identifier such a thumbprint – would require all US residents to prove their legal residency and eligibility to work in the US.
Each card's unique biometric identifier would be stored only on the card; no government database would house everyone's information.
RFID name badge: Using creditcard-sized RFID tokens and a Gumstix embedded Linux system, build a system that recognizes the RFID card and transmits the identifier via an 802.11 LAN to a display system that consults an LDAP database to map identifiers to names and other details.
Why couldn't they just use the MAC address of the Ethernet card as the unique identifier?
Participants were given a card with their unique identifier and returned to the local health center to receive their test results using this identification number.
Women were able to receive their HIV test results at the local health facility up to 3 months after the survey, using a card with their unique identifier barcoded.
Similarly, the White House urged Congress to pass pending legislation that would enforce criminal penalties for "identity theft" -- stealing someone's Social Security number, credit card numbers or other identifiers and using them to commit a crime, like credit card fraud.
